Millimeter-Wave Massive MIMO Communication for Future Wireless Systems: A Survey

IEEE Communications Surveys and Tutorials

Volumn 20, Issue 2, 2018, Pages 836-869

  Busari, Sherif Adeshina ^a   Huq, Kazi Mohammed Saidul ^a   Mumtaz, Shahid ^a   Dai, Linglong ^b   Rodriguez, Jonathan ^a  

^a INSTITUTO DE TELECOMUNICAÇÕES   (Portugal)

^b TSINGHUA UNIVERSITY   (China)

Author keywords

5G; channel estimation; channel feedback; channel measurement; channel modeling; massive MIMO; mmWave; precoding; propagation; wireless fronthaul

Indexed keywords

ANTENNA ARRAYS; BANDWIDTH; CHANNEL ESTIMATION; ENERGY EFFICIENCY; EQUIPMENT TESTING; LEGACY SYSTEMS; MILLIMETER WAVES; MIMO SYSTEMS; MOBILE TELECOMMUNICATION SYSTEMS; SURVEYS; WAVE PROPAGATION; WIRELESS NETWORKS; WIRELESS TELECOMMUNICATION SYSTEMS;

CHANNEL FEEDBACKS; CHANNEL MEASUREMENTS; CHANNEL MODEL; MASSIVE MIMO; MM-WAVE; PRECODING;

5G MOBILE COMMUNICATION SYSTEMS;

EID: 85040035737     PISSN: None     EISSN: 1553877X     Source Type: Journal    
DOI: 10.1109/COMST.2017.2787460     Document Type: Review

References (226)

1. "IMT vision-framework and overall objectives of the future development of IMT for 2020 and beyond," Int. Telecommun. Union, Geneva, Switzerland, ITU-Recommendation M.2083-0, Sep. 2015.
2. S. Mumtaz, J. Rodriguez, and L. Dai, Eds., "Introduction to mmWave massive MIMO," in mmWave Massive MIMO: A Paradigm for 5G. London, U.K.: Academic Press, 2017, pp. 1-18.
3. F. B. Saghezchi et al., "Drivers for 5G: The 'pervasive connected world,"' in Fundamentals of 5G Mobile Networks, J. Rodriguez, Ed. West Sussex, U.K.: Wiley, 2015, pp. 1-27.
4. T. Chen, M. Matinmikko, X. Chen, X. Zhou, and P. Ahokangas, "Software defined mobile networks: Concept, survey, and research directions," IEEE Commun. Mag., vol. 53, no. 11, pp. 126-133, Nov. 2015.
5. "5G vision, requirements and enabling technologies," South Korea, 5G Forum, White Paper, Mar. 2016.
6. S. Vahid, R. Tafazolli, and M. Filo, "Small cells for 5G mobile networks," in Fundamentals of 5G Mobile Networks, J. Rodriguez, Ed. West Sussex, U.K.: Wiley, 2015, pp. 63-104.
7. F. Boccardi, R. W. Health, A. Lozano, T. L. Marzetta, and P. Popovski, "Five disruptive technology directions for 5G," IEEE Commun. Mag., vol. 52, no. 2, pp. 74-80, Feb. 2014.
8. A. L. Swindlehurst, E. Ayanoglu, P. Heydasri, and F. Capolino, "Millimeter-wave massive MIMO: The next wireless revolution?" IEEE Commun. Mag., vol. 52, no. 9, pp. 56-62, Sep. 2014.
9. Q. C. Li, H. Niu, A. T. Papathanassiou, and G. Wu, "5G network capacity: Key elements and technologies," IEEE Veh. Technol. Mag., vol. 9, no. 1, pp. 71-78, Mar. 2014.
10. Z. S. Bojkovic, M. R. Bakmaz, and B. M. Bakmaz, "Research challenges for 5G cellular architecture," in Proc. 12th Int. Conf. Telecommun. Modern Satellite Cable Broadcast. Services (TELSIKS), 2015, pp. 215-222.
11. D. Feng et al., "A survey of energy-efficient wireless communications," IEEE Commun. Surveys Tuts., vol. 15, no. 1, pp. 167-178, 1st Quart., 2013.
12. E. Hossain, M. Rasti, H. Tabassum, and A. Abdelnasser, "Evolution toward 5G multi-tier cellular wireless networks: An interference management perspective," IEEE Wireless Commun. Mag., vol. 21, no. 3, pp. 118-127, Jun. 2014.
13. T. E. Bogale and L. B. Le, "Massive MIMO and mmWave for 5G wireless HetNet: Potential benefits and challenges," IEEE Veh. Technol. Mag., vol. 11, no. 1, pp. 64-75, Mar. 2016.
14. L. Wei, R. Q. Hu, Y. Qian, and G. Wu, "Key elements to enable millimeter wave communications for 5G wireless systems," IEEE Wireless Commun., vol. 21, no. 6, pp. 136-143, Dec. 2014.
15. S. Hur et al., "Millimeter wave beamforming for wireless backhaul and access in small cell networks," IEEE Trans. Commun., vol. 61, no. 10, pp. 4391-4403, Oct. 2013.
16. T. S. Rappaport et al., "Millimeter wave mobile communications for 5G cellular: It will work!" IEEE Access, vol. 1, pp. 335-349, 2013.
17. A. Gupta and R. K. Jha, "A survey of 5G network: Architecture and emerging technologies," IEEE Access, vol. 3, pp. 1206-1232, 2015.
18. W. H. Chin, Z. Fan, and R. Haines, "Emerging technologies and research challenges for 5G wireless networks," IEEE Wireless Commun., vol. 21, no. 2, pp. 106-112, Apr. 2014.
19. H. Shokri-Ghadikolaei, C. Fischione, G. Fodor, P. Popovski, and M. Zorzi, "Millimeter wave cellular networks: A MAC layer perspective," IEEE Trans. Commun., vol. 63, no. 10, pp. 3437-3458, Oct. 2015.
20. H. Shokri-Ghadikolaei, C. Fischione, P. Popovski, and M. Zorzi, "Design aspects of short-range millimeter-wave networks: A MAC layer perspective," IEEE Netw., vol. 30, no. 3, pp. 88-96, May/Jun. 2016.
21. E. G. Larsson, O. Edfors, F. Tufvesson, and T. L. Marzetta, "Massive MIMO for next generation wireless systems," IEEE Commun. Mag., vol. 52, no. 2, pp. 186-195, Feb. 2014.
22. T. L. Marzetta, "Noncooperative cellular wireless with unlimited numbers of base station antennas," IEEE Trans. Wireless Commun., vol. 9, no. 11, pp. 3590-3600, Nov. 2010.
23. F. Rusek et al., "Scaling up MIMO: Opportunities and challenges with very large arrays," IEEE Signal Process. Mag., vol. 30, no. 1, pp. 40-60, Jan. 2013.
24. M. Agiwal, A. Roy, and N. Saxena, "Next generation 5G wireless networks: A comprehensive survey," IEEE Commun. Surveys Tuts., vol. 18, no. 3, pp. 1617-1655, 3rd Quart., 2016.
25. T. S. Rappaport, G. R. MacCartney, M. K. Samimi, and S. Sun, "Wideband millimeter-wave propagation measurements and channel models for future wireless communication system design," IEEE Trans. Commun., vol. 63, no. 9, pp. 3029-3056, Sep. 2015.
26. Z. Pi and F. Khan, "An introduction to millimeter-wave mobile broadband systems," IEEE Commun. Mag., vol. 49, no. 6, pp. 101-107, Jun. 2011.
27. S. Mattigiri and C. Warty, "A study of fundamental limitations of small antennas: MIMO approach," in Proc. IEEE Aerosp. Conf., Big Sky,MT, USA, 2013, pp. 1-8.
28. H. Inanoǧlu, "Multiple-input multiple-output system capacity: Antenna and propagation aspects," IEEE Antennas Propag. Mag., vol. 55, no. 1, pp. 253-273, Feb. 2013.
29. L. Lu, G. Y. Li, A. L. Swindlehurst, A. Ashikhmin, and R. Zhang, "An overview of massive MIMO: Benefits and challenges," IEEE J. Sel. Topics Signal Process., vol. 8, no. 5, pp. 742-758, Oct. 2014.
30. L. G. Ordóñez, D. P. Palomar, and J. R. Fonollosa, "Fundamental diversity, multiplexing, and array gain tradeoff under different MIMO channel models," in Proc. IEEE Int. Conf. Acoust. Speech Signal Process. (ICASSP), Prague, Czech Republic, 2011, pp. 3252-3255.
31. A. Goldsmith, Wireless Communications. Cambridge, U.K.: Cambridge Univ. Press, 2005, pp. 321-350.
32. Q. Li et al., "MIMO techniques in WiMAX and LTE: A feature overview," IEEE Commun. Mag., vol. 48, no. 5, pp. 86-92, May 2010.
33. S. Wang, Y. Xin, S. Chen, W. Zhang, and C. Wang, "Enhancing spectral efficiency for LTE-Advanced and beyond cellular networks [guest editorial]," IEEE Wireless Commun., vol. 21, no. 2, pp. 8-9, Apr. 2014.
34. S. A. R. Naqvi, S. A. Hassan, and Z. Mulk, "Encoding and decoding in mmWave massive MIMO," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. London, U.K.: Academic Press, 2017, pp. 63-78.
35. T. L. Marzetta and B. M. Hochwald, "Fast transfer of channel state information in wireless systems," IEEE Trans. Signal Process., vol. 54, no. 4, pp. 1268-1278, Apr. 2006.
36. J. Jose, A. Ashikhmin, T. L. Marzetta, and S. Vishwanath, "Pilot contamination problem in multi-cell TDD systems," in Proc. IEEE Int. Symp. Inf. Theory, Jul. 2009, pp. 2184-2188.
37. R. Müller, M. Vehkaperä, and L. Cottatellucci, "Blind pilot decontamination," in Proc. ITG Workshop Smart Antennas, Stuttgart, Germany, Mar. 2013, pp. 1-6.
38. H. Yin, D. Gesbert, M. Filippou, and Y. Liu, "A coordinated approach to channel estimation in large-scale multiple-antenna systems," IEEE J. Sel. Areas Commun., vol. 31, no. 2, pp. 264-273, Feb. 2013.
39. A. Ashikhmin and T. L. Marzetta, "Pilot contamination precoding in multi-cell large scale antenna systems," in Proc. IEEE Int. Symp. Inf. Theory (ISIT), Jul. 2012, pp. 1137-1141.
40. T. E. Bogale, L. B. Le, X. Wang, and L. Vandendorpe, "Pilot contamination mitigation for wideband massive MMO: Number of cells vs multipath," in Proc. IEEE Glob. Commun. Conf. (GLOBECOM), San Diego, CA, USA, 2015, pp. 1-6.
41. F. Fernandes, A. Ashikhmin, and T. L. Marzetta, "Inter-cell interference in noncooperative TDD large scale antenna systems," IEEE J. Sel. Areas Commun., vol. 31, no. 2, pp. 192-201, Feb. 2013.
42. H. Q. Ngo and E. G. Larsson, "EVD-based channel estimation in multicell multiuser MIMO systems with very large antenna arrays," in Proc. IEEE Int. Conf. Acoust. Speed Signal Process., Mar. 2012, pp. 3249-3252.
43. X. Gao, L. Dai, Z. Gao, T. Xie, and Z. Wang, "Precoding for mmWave massive MIMO," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. London, U.K.: Academic Press, 2017, pp. 79-111.
44. J. Wang, "Beam codebook based beamforming protocol for multi-Gbps millimeter-wave WPAN systems," IEEE J. Sel. Areas Commun., vol. 27, no. 8, pp. 1390-1399, Oct. 2009.
45. C. Cordeiro, D. Akhmetov, and M. Park, "IEEE 802.11ad: Introduction and performance evaluation of the first multi-Gbps WiFi technology," in Proc. ACM Int. Workshop mmWave Commun., 2010, pp. 3-8.
46. M. H. Costa, "Writing on dirty paper (corresp.)," IEEE Trans. Inf. Theory, vol. 29, no. 3, pp. 439-441, May 1983.
47. U. D. Wessel, "Achievable rates for Tomlinson-Harashima precoding," IEEE Trans. Inf. Theory, vol. 44, no. 2, pp. 824-831, Mar. 1998.
48. A. Alkhateeb, G. Leus, and R. W. Heath, Jr., "Limited feedback hybrid precoding for multi-user millimeter wave systems," IEEE Trans. Wireless Commun., vol. 14, no. 11, pp. 6481-6494, Nov. 2015.
49. T. E. Bogale and L. B. Le, "Beamforming for multiuser massive MIMO systems: Digital versus hybrid analog-digital," in Proc. IEEE Glob. Commun. Conf. (GLOBECOM), Dec. 2014, pp. 4066-4071.
50. M. Kim and Y. H. Lee, "MSE-based hybrid RF/baseband processing for millimeter-wave communication systems in MIMO interference channels," IEEE Trans. Veh. Technol., vol. 64, no. 6, pp. 2714-2720, Jun. 2015.
51. A. Alkhateeb, J. Mo, N. Gonzalez-Prelcic, and R. W. Heath, "MIMO precoding and combining solutions for millimeter-wave systems," IEEE Commun. Mag., vol. 52, no. 12, pp. 122-131, Dec. 2014.
52. J. Brady, N. Behdad, and A. M. Sayeed, "Beamspace MIMO for millimeter-wave communications: System architecture, modeling, analysis, and measurements," IEEE Trans. Antennas Propag., vol. 61, no. 7, pp. 3814-3827, Jul. 2013.
53. Z. Gao, L. Dai, and Z. Wang, "Channel estimation for mmWave massive MIMO based access and backhaul in ultra-dense network," in Proc. IEEE Int. Conf. Commun. (ICC), Kuala Lumpur, Malaysia, 2016, pp. 1-6.
54. Z. Gao, L. Dai, C. Hu, X. Gao, and Z. Wang, "Channel estimation for mmWave massive MIMO systems," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. London, U.K.: Academic Press, pp. 113-139, 2017.
55. Y. C. Eldar and G. Kutyniok, Compressed Sensing: Theory and Applications. Cambridge, U.K.: Cambridge Univ. Press, May 2012.
56. J. Lee, G. T. Gil, and Y. H. Lee, "Exploiting spatial sparsity for estimating channels of hybrid MIMO systems in millimeter wave communications," in Proc. IEEE Globecom, 2014, pp. 3326-3331.
57. A. Alkhateeb, G. Leus and R. W. Heath, "Compressed sensing based multi-user millimeter wave systems: How many measurements are needed?" in Proc. IEEE Int. Conf. Acoust. Speech Signal Process. (ICASSP), Brisbane, QLD, Australia, 2015, pp. 2909-2913.
58. J. Mo, P. Schniter, N. G. Prelcic, and R. W. Heath, "Channel estimation in millimeter wave MIMO systems with one-bit quantization," in Proc. IEEE ACSSC, 2014, pp. 957-961.
59. Z. Gao et al., "MmWave massive-MIMO-based wireless backhaul for the 5G ultra-dense network," IEEE Wireless Commun., vol. 22, no. 5, pp. 13-21, Oct. 2015.
60. Z. Gao, L. Dai, Z. Wang, and S. Chen, "Spatially common sparsity based adaptive channel estimation and feedback for FDD massive MIMO," IEEE Trans. Signal Process., vol. 63, no. 23, pp. 6169-6183, Dec. 2015.
61. Z. Gao, L. Dai, and Z. Wang, "Structured compressive sensing based superimposed pilot design for large-scale MIMO systems," Electron. Lett., vol. 50, no. 12, pp. 896-898, Jun. 2014.
62. Z. Gao, L. Dai, Z. Lu, C. Yuen, and Z. Wang, "Super-resolution sparse MIMO-OFDM channel estimation based on spatial and temporal correlations," IEEE Commun. Lett., vol. 18, no. 7, pp. 1266-1269, Jul. 2014.
63. J. Jose, A. Ashikhmin, P. Whiting, and S. Vishwanath, "Channel estimation and linear precoding in multiuser multiple-antenna TDD systems," IEEE Trans. Veh. Technol., vol. 60, no. 5, pp. 2102-2116, Jun. 2011.
64. F. Kaltenberger, H. Jiang, M. Guillaud, and R. Knopp, "Relative channel reciprocity calibration in MIMO/TDD systems," in Proc. Future Netw. Mobile Summit, Jun. 2010, pp. 1-10.
65. P.-H. Kuo, B. Su, and C.-P. Yen, "Channel feedback for mmWave massive MIMO," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. London, U.K.: Academic Press, 2017, pp. 141-167.
66. P.-H. Kuo, H. T. Kung, and P.-A. Ting, "Compressive sensing based channel feedback protocols for spatially-correlated massive antenna arrays," in Proc. IEEE Wireless Commun. Netw. Conf. (WCNC), Shanghai, China, Apr. 2012, pp. 492-497.
67. Y. Li, M. S. Rahman, and Y.-H. Nam, "Full-dimension MIMO cellular systems realizing potential of massive-MIMO," IEEE Comsoc MMTC E-Lett., vol. 9, no. 6, pp. 6-10, Nov. 2014.
68. B. D. Carlson, "Covariance matrix estimation errors and diagonal loading in adaptive arrays," IEEE Trans. Aerosp. Electron. Syst., vol. 24, no. 4, pp. 397-401, Jul. 1988.
69. T. Parks and J. McClellan, "Chebyshev approximation for nonrecursive digital filters with linear phase," IEEE Trans. Circuit Theory, vol. 19, no. 2, pp. 189-194, Mar. 1972.
70. S. L. H. Nguyen, K. Haneda, J. Jarvelainen, A. Karttunen, and J. Putkonen, "On the mutual orthogonality of millimeter-wave massive MIMO channels," in Proc. IEEE 81st Veh. Technol. Conf. (VTC Spring), May 2015, pp. 1-5.
71. B. Ai, K. Guan, G. Li, and S. Mumtaz, "mmWave massive MIMO channel modeling," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. London, U.K.: Academic Press, 2017, pp. 169-194.
72. K. Zheng, S. Ou, and X. Yin, "Massive MIMO channel models: A survey," Int. J. Antennas Propag., vol. 2014, 2014, Art. no. 848071, doi: 10.1155/2014/848071.
73. J. M. Jornet and I. F. Akyildiz, "Channel modeling and capacity analysis for electromagnetic wireless nanonetworks in the terahertz band," IEEE Trans. Wireless Commun., vol. 10, no. 10, pp. 3211-3221, Oct. 2011.
74. T. Kürner and S. Priebe, "Towards THz communications - Status in research, standardization and regulation," J. Infrared Millimeter Terahertz Waves, vol. 35, no. 1, pp. 53-62, Jan. 2014, doi: 10.1007/s10762-013-0014-3.
75. R. Piesiewicz et al., "Scattering analysis for the modeling of THz communication systems," IEEE Trans. Antennas Propag., vol. 55, no. 11, pp. 3002-3009, Nov. 2007.
76. S. Priebe, M. Jacob, and T. Kürner, "AoA, AoD and ToA characteristics of scattered multipath clusters for THz indoor channel modeling," in Proc. 17th Eur. Wireless Conf. (EW), Vienna, Austria, Apr. 2011, pp. 1-9.
77. M. Jacob et al., "Diffraction in mm and sub-mm wave indoor propagation channels," IEEE Trans. Microw. Theory Techn., vol. 60, no. 3, pp. 833-844, Mar. 2012.
78. I. F. Akyildiz, J. M. Jornet, and C. Han, "TeraNets: Ultra-broadband communication networks in the Terahertz band," IEEE Wireless Commun., vol. 21, no. 4, pp. 130-135, Aug. 2014.
79. S. Priebe, M. Jacob, and T. Kürner, "Calibrated broadband ray tracing for the simulation of wave propagation in mm and sub-mm wave indoor communication channels," in Proc. 18th Eur. Wireless Conf. (EW), Poznán, Poland, Apr. 2012, pp. 1-10.
80. M. R. Akdeniz et al., "Millimeter wave channel modeling and cellular capacity evaluation," IEEE J. Sel. Areas Commun., vol. 32, no. 6, pp. 1164-1179, Jun. 2014.
81. S. Jaeckel, L. Raschkowski, K. Börner, and L. Thiele, "QuaDRiGa: A 3-D multi-cell channel model with time evolution for enabling virtual field trials," IEEE Trans. Antennas Propag., vol. 62, no. 6, pp. 3242-3256, Jun. 2014.
82. S. Jaeckel, M. Peter, K. Sakaguchi, W. Keusgen, and J. Medbo, "5G channel models in mm-wave frequency bands," in Proc. 22th Eur. Wireless Conf., Oulu, Finland, 2016, pp. 1-6.
83. X. Zhao et al., "Channel measurements, modeling, simulation and validation at 32 GHz in outdoor microcells for 5G radio systems," IEEE Access, vol. 5, pp. 1062-1072, 2017.
84. F. Khan and Z. Pi, "mmWave mobile broadband (MMB): Unleashing the 3-300GHz spectrum," in Proc. IEEE Sarnoff Symp., Princeton, NJ, USA, May 2011, pp. 1-6.
85. Z. Shi, R. Lu, J. Chen, and X. S. Shen, "Three-dimensional spatial multiplexing for directional millimeter-wave communications in multi-cubicle office environments," in Proc. IEEE Glob. Telecommun. Conf., Atlanta, GA, USA, 2013, pp. 4384-4389.
86. C. Kourogiorgas, S. Sagkriotis, and A. D. Panagopoulos, "Coverage and outage capacity evaluation in 5G millimeter wave cellular systems: Impact of rain attenuation," in Proc. Eur. Conf. Antennas Propag. (EuCAP), Lisbon, Portugal, 2015, pp. 1-5.
87. T. S. Rappaport, J. N. Murdock, and F. Gutierrez, "State of the art in 60-GHz integrated circuits and systems for wireless communications," Proc. IEEE, vol. 99, no. 8, pp. 1390-1436, Aug. 2011.
88. Z. Qingling and J. Li, "Rain attenuation in millimeter wave ranges," in Proc. Int. Symp. Antennas Propag. EM Theory (ISAPE), Guilin, China, 2006, pp. 1-4.
89. S. Joshi and S. Sancheti, "Foliage loss measurements of tropical trees at 35 GHz," in Proc. IEEE Int. Conf. Recent Adv. Microw. Theory Appl., Jaipur, India, Nov. 2008, pp. 531-532.
90. T. E. Bogale, X. Wang, and L. B. Le. "mmWave communication enabling techniques for 5G wireless systems: A link level perspective," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. San Diego, CA, USA: Acadamic Press, 2017, pp. 195-225.
91. D. Tse and P. Viswanath, Fundamentals of Wireless Communication. Cambridge, U.K.: Cambridge Univ. Press, 2005.
92. T. Bai, A. Alkhateeb, and R. W. Heath, "Coverage and capacity of millimeter-wave cellular networks," IEEE Commun. Mag., vol. 52, no. 9, pp. 70-77, Sep. 2014.
93. L. Chen, Y. Yang, X. Chen, and W. Wang, "Multi-stage beamforming codebook for 60GHz WPAN," in Proc. 16th Int. ICST Conf. Commun. Netw., Harbin, China, 2011, pp. 361-365.
94. Y. Tsang, A. Poon, and S. S. Addepalli, "Coding the beams: Improving beamforming training in mmWave communication system," in Proc. IEEE Glob. Telecommun. Conf. (GLOBECOM), Kathmandu, Nepal, 2011, pp. 1-6.
95. S. Sun, T. S. Rappaport, R. W. Heath, A. Nix, and S. Rangan, "MIMO for millimeter-wave wireless communications: Beamforming, spatial multiplexing, or both?" IEEE Commun. Mag., vol. 52, no. 12, pp. 110-121, Dec. 2014.
96. S. Han, I. Chih-Lin, Z. Xu, and C. Rowell, "Large-scale antenna systems with hybrid analog and digital beamforming for millimeter wave 5G," IEEE Commun. Mag., vol. 53, no. 1, pp. 186-194, Jan. 2015.
97. T. E. Bogale, L. B. Le, A. Haghighat, and L. Vandendorpe, "On the number of RF chains and phase shifters, and scheduling design with hybrid analog-digital beamforming," IEEE Trans. Wireless Commun., vol. 15, no. 5, pp. 3311-3326, May 2016.
98. E. Torkildson, C. Sheldon, U. Madhow, and M. Rodwell, "Millimeterwave spatial multiplexing in an indoor environment," in Proc. IEEE Glob. Telecommun. Conf., Honolulu, HI, USA, 2009, pp. 1-6.
99. A. Adhikary et al., "Joint spatial division and multiplexing for mm-Wave channels," IEEE J. Sel. Areas Commun., vol. 32, no. 6, pp. 1239-1255, Jun. 2014.
100. A. Arvanitis, G. Anagnostou, N. Moraitis, and P. Constantinou, "Capacity study of a multiple element antenna configuration in an indoor wireless channel at 60 GHz," in Proc. IEEE Veh. Technol. Conf. (VTC-Spring), Dublin, Ireland, 2007, pp. 609-613.
101. Z. Pi and F. Khan, "A millimeter-wave massive MIMO system for next generation mobile broadband," in Proc. Asilomar Conf. Sign. Syst. Comput., Pacific Grove, CA, USA, Nov. 2012, pp. 693-698.
102. Robert W. Heath. (2014). Comparing Massive MIMO and mmWave MIMO. [Online]. Available: https://www.ieeectw.org/2014/ slides/session3/Heath-CTW-v6.pdf
103. M. Biguesh and A. B. Gershman, "Training-based MIMO channel estimation: A study of estimator tradeoffs and optimal training signals," IEEE Trans. Signal Process., vol. 54, no. 3, pp. 884-893, Mar. 2006.
104. S. Boyd and L. Vandenberghe, Convex Optimization. Cambridge, U.K.: Cambridge Univ. Press, 2004.
105. J. G. Andrews et al., "What will 5G be?" IEEE J. Sel. Area Commun., vol. 32, no. 6, pp. 1065-1082, Jun. 2014.
106. A. Morello and V. Mignone, "DVB-S2: The second generation standard for satellite broad-band services," Proc. IEEE, vol. 94, no. 1, pp. 210-227, Jan. 2006.
107. J. G. Andrews, A. Ghosh, and R. Muhamed, Fundamentals of WiMAX: Understanding Broadband Wireless Networking. Upper Saddle River, NJ, USA: Prentice-Hall, 2007.
108. A. Ghosh et al., "Millimeter-wave enhanced local area systems: A highdata-rate approach for future wireless networks," IEEE J. Sel. Areas Commun., vol. 32, no. 6, pp. 1152-1163, Jun. 2014.
109. J.-C. Chen and C.-P. Li, "Tone reservation using near-optimal peak reduction tone set selection algorithm for PAPR reduction in OFDM systems," IEEE Signal Process. Lett., vol. 17, no. 11, pp. 933-936, Nov. 2010.
110. N. Benvenuto, R. Dinis, D. Falconer, and S. Tomasin, "Single carrier modulation with nonlinear frequency domain equalization: An idea whose time has come again," Proc. IEEE, vol. 98, no. 1, pp. 69-96, Jan. 2010.
111. K. Zheng et al., "10 Gb/s HetSNets with millimeter-wave communications: Access and networking-challenges and protocols," IEEE Commun. Mag., vol. 53, no. 1, pp. 222-231, Jan. 2015.
112. H. A. Ul Mustafa, M. A. Imran, M. Z. Shakir, A. Imran, and R. Tafazolli, "Separation framework: An enabler for cooperative and D2D communication for future 5G networks," IEEE Commun. Surveys Tuts., vol. 18, no. 1, pp. 419-445, 1st Quart., 2016.
113. A. Dehos, J. L. Gonzalez, A. De Domenico, D. Kténas, and L. Dussopt, "Millimeter-wave access and backhauling: The solution to the exponential data traffic increase in 5G mobile communications systems?" IEEE Commun. Mag., vol. 52, no. 9, pp. 88-95, Sep. 2014.
114. D. R. Taori and A. Sridharan, "Point-to-multipoint in-band mmWave fronthaul for 5G networks," IEEE Commun. Mag., vol. 53, no. 1, pp. 195-201, Jan. 2015.
115. Y. Niu et al., "Exploiting device-to-device communications in joint scheduling of access and backhaul for mmWave small cells," IEEE J. Sel. Area Commun., vol. 33, no. 10, pp. 2052-2069, Oct. 2015.
116. C. J. Bernardos, A. De Domenico, J. Ortin, P. Rost, and D. Wübben, "Challenges of designing jointly the backhaul and radio access network in a cloud-based mobile network," in Proc. Future Netw. Mobile Summit., Lisbon, Portugal, Jul. 2013, pp. 1-10.
117. G. Lee and Y. Sung, "MAC layer design for mmWave massive MIMO," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds., London, U.K.: Academic Press, 2017, pp. 227-255.
118. F. Capozzi, G. Piro, L. A. Grieco, G. Boggia, and P. Camarda, "Downlink packet scheduling in LTE cellular networks: Key design issues and a survey," IEEE Commun. Surveys Tuts., vol. 15, no. 2, pp. 678-700, 2nd Quart., 2013.
119. R. Knopp and P. A. Humblet. "Information capacity and power control in single-cell multi-user communication," in Proc. ICC, vol. 1. Seattle, WA, USA, 1995, pp. 331-335.
120. N. Jindal and A. Goldsmith, "Dirty-paper coding versus TDMA for MIMO broadcast channels," IEEE Trans. Inf. Theory, vol. 51, no. 5, pp. 1783-1794, May 2005.
121. M. Sharif and B. Hassibi, "On the capacity of MIMO broadcast channels with partial side information," IEEE Trans. Inf. Theory, vol. 51, no. 2, pp. 506-522, Feb. 2005.
122. T. Yoo and A. Goldsmith, "On the optimality of multiantenna broadcast scheduling using zero-forcing beamforming," IEEE J. Sel. Areas Commun., vol. 24, no. 3, pp. 528-541, Mar. 2006
123. H. Huh, A. M. Tulino, and G. Caire, "Network MIMO with linear zero-forcing beamforming: Large system analysis, impact of channel estimation, and reduced-complexity scheduling," IEEE Trans. Inf. Theory, vol. 58, no. 5, pp. 2911-2934, May 2012.
124. G. Lee and Y. Sung. (2014). A New Approach to User Scheduling in Massive Multi-User MIMO Broadcast Channels. [Online]. Available: http://arxiv.org/pdf/1403.6931.pdf
125. J. Nam, A. Adhikary, J.-Y. Ahn, and G. Caire, "Joint spatial division and multiplexing: Opportunistic beamforming, user grouping and simplified downlink scheduling," IEEE J. Sel. Topics Signal Process., vol. 8, no. 5, pp. 876-890, Oct. 2014.
126. H. Q. Ngo, E. G. Larsson, and T. L. Marzetta, "Aspects of favorable propagation in massive MIMO," in Proc. 22nd Eur. Signal Process. Conf. (EUSIPCO), Lisbon, Portugal, 2014, pp. 76-80.
127. A. Tomasoni, G. Caire, M. Ferrari, and S. Bellini, "On the selection of semi-orthogonal users for zero-forcing beamforming," in Proc. IEEE Int. Symp. Inf. Theory, Seoul, South Korea, 2009, pp. 1100-1104.
128. G. Lee, Y. Sung, and J. Seo, "Randomly-directional beamforming in millimeter-wave multiuser MISO downlink," IEEE Trans. Wireless Commun., vol. 15, no. 2, pp. 1086-1100, Feb. 2016.
129. G. Lee, Y. Sung, and M. Kountouris, "On the performance of random beamforming in sparse millimeter wave channels," IEEE J. Sel. Topics Signal Process., vol. 10, no. 3, pp. 560-575, Apr. 2016.
130. G. Lee, Y. Sung, and M. Kountouris, "On the performance of randomly directional beamforming between line-of-sight and rich scattering channels," in Proc. IEEE 16th Int. Workshop Signal Process. Adv. Wireless Commun. (SPAWC), Stockholm, Sweden, 2015, pp. 141-145.
131. G. Lee, Y. Sung, and J. Seo, "How many users are needed for nontrivial performance of random beamforming in highly-directional mmwave MIMO downlink?" in Proc. IEEE Inf. Theory Workshop Fall (ITW), Jeju-do, South Korea, 2015, pp. 244-248.
132. U. Erez and S. ten Brink, "A close-to-capacity dirty paper coding scheme," IEEE Trans. Inf. Theory, vol. 51, no. 10, pp. 3417-3432, Oct. 2005.
133. N. Ravindran and N. Jindal, "Multi-user diversity vs. accurate channel state information in MIMO downlink channels," IEEE Trans. Wireless Commun., vol. 11, no. 9, pp. 3037-3046, Sep. 2012.
134. S. Sun and T. S. Rappaport, "Wideband mmWave channels: Implications for design and implementation of adaptive beam antennas," in IEEE MTT-S Int. Microw. Symp. Dig., Tampa, FL, USA, 2014, pp. 1-4.
135. J. Jose, A. Ashikhmin, T. L. Marzetta, and S. Vishwanath, "Pilot contamination and precoding in multi-cell TDD systems," IEEE Trans. Wireless Commun., vol. 10, no. 8, pp. 2640-2651, Aug. 2011.
136. E. Björnson, E. G. Larsson, and M. Debbah, "Optimizing multicell massive MIMO for spectral efficiency: How many users should be scheduled?" in Proc. IEEE Glob. Conf. Signal Inf. Process. (GlobalSIP), Atlanta, GA, USA, 2014, pp. 612-616.
137. M. N. Khormuji, "Enhanced multiple-access for mmWave massive MIMO," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. San Diego, CA, USA: Academic Press, pp. 257-288, 2017.
138. P. Rost et al., "Cloud technologies for flexible 5G radio access networks," IEEE Commun. Mag., vol. 52, no. 5, pp. 68-76, May 2014.
139. N.Wang, E. Hossain, and V. K. Bhargava, "Backhauling 5G small cells: A radio resource management perspective," IEEE Wireless Commun., vol. 22, no. 5, pp. 41-49, Oct. 2015.
140. Z. Gao, L. Dai, X. Gao, M. Z. Shakir, and Z. Wang, "Fronthaul design for mmWave massive MIMO," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. San Diego, CA, USA: Academic Press, 2017, pp. 289-312.
141. S. Park, C.-B. Chae, and S. Bahk, "Large-scale antenna operation in heterogeneous cloud radio access networks: A partial centralization approach," IEEE Wireless Commun., vol. 22, no. 3, pp. 32-40, Jun. 2015.
142. Z. Zhang, X. Wang, K. Long, A. V. Vasilakos, and L. Hanzo, "Largescale MIMO-based wireless backhaul in 5G networks," IEEE Wireless Commun., vol. 22, no. 5, pp. 58-66, Oct. 2015.
143. Z. Gao et al., "MmWave massive MIMO based wireless fronthaul for 5G ultra-dense network," IEEE Wireless Commun., vol. 21, no. 6, pp. 136-143, Dec. 2014.
144. R. J. Weiler et al., "Enabling 5G fronthaul and access with millimeterwaves," in Proc. Eur. Conf. Netw. Commun. (EuCNC), Bologna, Italy, Jun. 2014, pp. 1-5.
145. Small Cell Millimeter Wave Mesh Fronthaul, InterDigital. Inc., Wilmington, DE, USA, Feb. 2013. [Online]. Available: http:// www.interdigital.com/research-papers/2013-01-25-small-cell- millimeter-wave-mesh-fronthaul
146. Small Cell Millimeter Wave Mesh Fronthaul. [Online]. Available: http://www.interdigital.com/research-papers/2013-01-25- small-cell-millimeter-wave-mesh-fronthaul
147. H. Ghauch, T. Kim, M. Bengtsson, and M. Skoglund, "Subspace estimation and decomposition for large millimeter-wave MIMO systems," IEEE J. Sel. Topics Signal Process., vol. 10, no. 3, pp. 528-542, Apr. 2016.
148. W. Lu and M. Di Renzo, "mmWave cellular networks: Stochastic geometry modeling, analysis, and experimental validation," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. San Diego, CA, USA: Academic Press, 2017, pp. 313-341.
149. J. G. Andrews, F. Baccelli, and R. K. Ganti, "A tractable approach to coverage and rate in cellular networks," IEEE Trans. Commun., vol. 59, no. 11, pp. 3122-3134, Nov. 2011.
150. S. A. Hosseini, E. Zarepour, M. Hassan, and C. T. Chou, "Analyzing diurnal variations of millimeter wave channels," in Proc. IEEE Conf. Comput. Commun. Workshops (INFOCOM WKSHPS), San Francisco, CA, USA, 2016, pp. 377-382.
151. M. Di Renzo, A. Guidotti, and G. E. Corazza, "Average rate of downlink heterogeneous cellular networks over generalized fading channels - A stochastic geometry approach," IEEE Trans. Commun., vol. 61, no. 7, pp. 3050-3071, Jul. 2013.
152. M. Di Renzo and W. Lu, "The equivalent-in-distribution (EiD)-based approach: On the analysis of cellular networks using stochastic geometry," IEEE Commun. Lett., vol. 18, no. 5, pp. 761-764, May 2014.
153. O. Semiari, W. Saad, and M. Bennis, "Context-aware scheduling of joint millimeter wave and microwave resources for dual-mode base stations," in Proc. IEEE Int. Conf. Commun. (ICC), Kuala Lumpur, Malaysia, 2016, pp. 1-6.
154. S. Kutty and D. Sen, "Beamforming for millimeter wave communications: An inclusive survey," IEEE Commun. Surveys Tuts., vol. 18, no. 2, pp. 949-973, 2nd Quart., 2016.
155. M. Di Renzo and W. Lu, "End-to-end error probability and diversity analysis of AF-based dual-hop cooperative relaying in a poisson field of interferers at the destination," IEEE Trans. Wireless Commun., vol. 14, no. 1, pp. 15-32, Jan. 2015.
156. M. Di Renzo and W. Lu, "Stochastic geometry modeling and performance evaluation of MIMO cellular networks using the equivalent-in-distribution (EiD)-based approach," IEEE Trans. Commun., vol. 63, no. 3, pp. 977-996, Mar. 2015.
157. M. Di Renzo and W. Lu, "On the diversity order of selection combining dual-branch dual-hop AF relaying in a poisson field of interferers at the destination," IEEE Trans. Veh. Technol., vol. 64, no. 4, pp. 1620-1628, Apr. 2015.
158. M. Di Renzo, "Stochastic geometry modeling and analysis of multi-tier millimeter wave cellular networks," IEEE Trans. Wireless Commun., vol. 14, no. 9, pp. 5038-5057, Sep. 2015.
159. W. Lu and M. Di Renzo, "Stochastic geometry modeling and system-level analysis & optimization of relay-aided downlink cellular networks," IEEE Trans. Commun., vol. 63, no. 11, pp. 4063-4085, Nov. 2015.
160. T. Bai, R. Vaze, and R. W. Heath, "Analysis of blockage effects on urban cellular networks," IEEE Trans. Wireless Commun., vol. 13, no. 9, pp. 5070-5083, Sep. 2014.
161. T. Bai and R. W. Heath, Jr., "Coverage and rate analysis for millimeterwave cellular networks," IEEE Trans. Wireless Commun., vol. 14, no. 2, pp. 1100-1114, Feb. 2015.
162. S. Singh, M. N. Kulkarni, A. Ghosh, and J. G. Andrews, "Tractable model for rate in self-backhauled millimeter wave cellular networks," IEEE J. Sel. Areas Commun., vol. 33, no. 10, pp. 2196-2211, Oct. 2015.
163. F. Khan and Z. Pi, "mmWave mobile broadband (MMB): Unleashing the 3-300GHz spectrum," in Proc. IEEE Sarnoff Symp., Princeton, NJ, USA, Mar. 2011, pp. 1-6. [Online]. Available: http://wcnc2011.ieeewcnc. org/tut/t1.pdf
164. D. Zhang, S. Mumtaz, and K. S. Huq, "SISO to mmWave massive MIMO," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. London, U.K.: Academic Press, 2017, pp. 19-38.
165. F. Ademaj, M. Taranetz, and M. Rupp, "Implementation, validation and application of the 3GPP 3D MIMO channel model in open source simulation tools," in Proc. Int. Symp. Wireless Commun. Syst. (ISWCS), Brussels, Belgium, 2015, pp. 721-725.
166. F. Ademaj, M. Taranetz, and M. Rupp, "3GPP 3D MIMO channel model: A holistic implementation guideline for open source simulation tools," EURASIP J. Wireless Commun. Netw., vol. 2016, no. 55, pp. 1-14, Feb. 2016, doi: 10.1186/s13638-016-0549-9.
167. N. A. Muhammad, P. Wang, Y. Li, and B. Vucetic, "Analytical model for outdoor millimeter wave channels using geometry-based stochastic approach," IEEE Trans. Veh. Technol., vol. 66, no. 2, pp. 912-926, Feb. 2017.
168. M. K. Samimi and T. S. Rappaport, "3-D millimeter-wave statistical channel model for 5G wireless system design," IEEE Trans. Microw. Theory Techn., vol. 64, no. 7, pp. 2207-2225, Jul. 2016.
169. M. K. Samimi, G. R. MacCartney, S. Sun, and T. S. Rappaport, "28 GHz millimeter-wave ultrawideband small-scale fading models in wireless channels," in Proc. IEEE 83rd Veh. Technol. Conf. (VTC Spring), Nanjing, China, 2016, pp. 1-6.
170. M. K. Samimi and T. S. Rappaport, "Local multipath model parameters for generating 5G millimeter-wave 3GPP-like channel impulse response," in Proc. 10th Eur. Conf. Antennas Propag. (EuCAP), Davos, Switzerland, 2016, pp. 1-5.
171. M. K. Samimi, S. Sun, and T. S. Rappaport, "MIMO channel modeling and capacity analysis for 5G millimeter-wave wireless systems," in Proc. 10th Eur. Conf. Antennas Propag. (EuCAP), Davos, Switzerland, 2016, pp. 1-5.
172. M. K. Samimi and T. S. Rappaport, "Statistical channel model with multi-frequency and arbitrary antenna beamwidth for millimeter-wave outdoor communications," in Proc. IEEE Globecom Workshops (GC Wkshps), San Diego, CA, USA, 2015, pp. 1-7.
173. A. Torabi, S. A. Zekavat, and A. Al-Rasheed, "Millimeter wave directional channel modeling," in Proc. IEEE Int. Conf. Wireless Space Extreme Environ. (WiSEE), Orlando, FL, USA, 2015, pp. 1-6.
174. S. Hur et al., "Proposal on millimeter-wave channel modeling for 5G cellular system," IEEE J. Sel. Topics Signal Process., vol. 10, no. 3, pp. 454-469, Apr. 2016.
175. S. Buzzi and C. D'Andrea, "Doubly massive mmWave MIMO systems: Using very large antenna arrays at both transmitter and receiver," in Proc. IEEE GLOBECOM, Washington, DC, USA, Dec. 2016, pp. 1-6.
176. S. Buzzi and C. D'Andrea, "The doubly massive MIMO regime in mmWave communications," in Proc. Tyrrhenian Int. Workshop Digit. Commun., Sep. 2016, pp. 1-28. [Online]. Available: http:// tyrr2016.cnit.it/tyrr-content/uploads/The-doubly-massive-MIMOregime-in-mmWave-DAndrea-TIW16.pdf
177. J. A. Zhang, X. Huang, V. Dyadyuk, and Y. J. Guo, "Hybrid antenna array for mmWave massive MIMO," in mmWave Massive MIMO: A Paradigm for 5G, S. Mumtaz, J. Rodriguez, and L. Dai, Eds. London, U.K.: Academic Press, 2017, pp. 39-61.
178. X. Huang, Y. J. Guo, and J. D. Bunton, "A hybrid adaptive antenna array," IEEE Trans. Wireless Commun., vol. 9, no. 5, pp. 1770-1779, May 2010.
179. J. A. Zhang, X. Huang, V. Dyadyuk, and Y. J. Guo, "Massive hybrid antenna array for millimeter-wave cellular communications," IEEE Wireless Commun., vol. 22, no. 1, pp. 79-87, Feb. 2015.
180. Y. J. Guo, X. Huang, and V. Dyadyuk, "A hybrid adaptive antenna array for long-range mm-Wave communications [antenna applications corner]," IEEE Antennas Propag. Mag., vol. 54, no. 2, pp. 271-282, Apr. 2012.
181. V. Dyadyuk et al., "Adaptive antenna arrays for adhoc millimeterwave wireless communications," in Advanced Trends in Wireless Communications. Rijeka, Croatia: InTech, 2011.
182. W. Roh et al., "Millimeter-wave beamforming as an enabling technology for 5G cellular communications: Theoretical feasibility and prototype results," IEEE Commun. Mag., vol. 52, no. 2, pp. 106-113, Feb. 2014.
183. O. El Ayach, S. Rajagopal, S. Abu-Surra, Z. Pi, and R. W. Heath, "Spatially sparse precoding in millimeter wave MIMO systems," IEEE Trans. Wireless Commun., vol. 13, no. 3, pp. 1499-1513, Mar. 2014.
184. A. Alkhateeb, O. El Ayach, G. Leus, and R. W. Heath, "Channel estimation and hybrid precoding for millimeter wave cellular systems," IEEE J. Sel. Topics Signal Process., vol. 8, no. 5, pp. 831-846, Oct. 2014.
185. Z. Shen, R. Chen, J. G. Andrews, R. W. Heath, and B. L. Evans, "Low complexity user selection algorithms for multiuser MIMO systems with block diagonalization," IEEE Trans. Signal Process., vol. 54, no. 9, pp. 3658-3663, Sep. 2006.
186. N. Van der Neut et al., "PAPR reduction in FBMC systems using a smart gradient-project active constellation extension method," in Proc. 21st Int. Conf. Telecommun. (ICT), Lisbon, Portugal, 2014, pp. 134-139.
187. M. Mukherjee, L. Shu, V. Kumar, P. Kumar, and R. Matam, "Reduced out-of-band radiation-based filter optimization for UFMC systems in 5G," in Proc. Wireless Commun. Mobile Comput. Conf. (IWCMC), Dubrovnik, Croatia, 2015, pp. 1150-1155.
188. G. Fettweis, M. Krondorf, and S. Bittner, "GFDM - Generalized frequency division multiplexing," in Proc. IEEE 69th Veh. Technol. Conf., Barcelona, Spain, 2009, pp. 1-4.
189. G. Wunder, S. A. Gorgani, and S. S. Ahmed, "Waveform optimization using trapezoidal pulses for 5G random access with short message support," in Proc. IEEE 16th Int. Workshop Signal Process. Adv. Wireless Commun., Stockholm, Sweden, 2015, pp. 76-80.
190. R. N. Mitra and D. P. Agrawal, "5G mobile technology: A survey," ICT Exp., vol. 1, no. 3, pp. 132-137, Dec. 2015.
191. B. M. Hochwald, C. B. Peel, and A. L. Swindlehurst, "A vectorperturbation technique for near-capacity multiantenna multiuser communication-part II: Perturbation," IEEE Trans. Commun., vol. 53, no. 3, pp. 537-544, Mar. 2005.
192. C. Windpassinger, R. F. H. Fischer, and J. B. Huber, "Lattice-reductionaided broadcast precoding," IEEE Trans. Commun., vol. 52, no. 12, pp. 2057-2060, Dec. 2004.
193. Y. Li, Y.-H. Nam, B. L. Ng, and J. Zhang, "A non-asymptotic throughput for massive MIMO cellular uplink with pilot reuse," in Proc. IEEE Glob. Commun. Conf. (GLOBECOM), Anaheim, CA, USA, 2012, pp. 4500-4504.
194. K. Appaiah, A. Ashikhmin, and T. L. Marzetta, "Pilot contamination reduction in multi-user TDD systems," in Proc. IEEE Int. Conf. Commun., Cape Town, South Africa, 2010, pp. 1-5.
195. H. Huh, S.-H. Moon, Y.-T. Kim, I. Lee, and G. Caire, "Multi-cell MIMO downlink with cell cooperation and fair scheduling: A largesystem limit analysis," IEEE Trans. Inf. Theory, vol. 57, no. 12, pp. 7771-7786, Dec. 2011.
196. R. R. Müller, L. Cottatellucci, and M. Vehkaperä, "Blind pilot decontamination," IEEE J. Sel. Topics Signal Process., vol. 8, no. 5, pp. 773-786, Oct. 2014.
197. L. Cottatellucci, R. R. Muller, and M. Vehkapera, "Analysis of pilot decontamination based on power control," in Proc. IEEE 77th Veh. Technol. Conf. (VTC Spring), Dresden, Germany, 2013, pp. 1-5.
198. M. Filippou, D. Gesbert, and H. Yin, "Decontaminating pilots in cognitive massive MIMO networks," in Proc. Int. Symp. Wireless Commun. Syst. (ISWCS), Paris, France, 2012, pp. 816-820.
199. H. Yin, D. Gesbert, M. C. Filippou, and Y. Liu, "Decontaminating pilots in massive MIMO systems," in Proc. IEEE Int. Conf. Commun. (ICC), Budapest, Hungary, 2013, pp. 3170-3175.
200. "METIS channel models deliverable 1.4 version 3," document ICT-317669 METIS/D14, METIS, Sweden, Jul. 2015.
201. A. Ghosh, Ed., 5G Channel Model for Bands up to 100 GHz, Globecom, San Diego, CA, USA, Dec. 2015, accessed: Jan. 6, 2018. [Online]. Available: http://www.5gworkshops.com/5GCM.html
202. European 7th Framework Programme Project MiWEBA. accessed: Jan. 6, 2018. [Online]. Available: http://www.miweba.eu
203. K. Sakaguchi et al., "Millimeter-wave evolution for 5G cellular networks," IEICE Trans. Commun., vol. E98.B, no. 3, pp. 388-402, Mar. 2015.
204. European 7th Framework Programme Project MiWaveS. accessed: Jan. 6, 2018. [Online]. Available: http://www.miwaves.eu
205. V. Frascolla et al., "MmWave use cases and prototyping: A way towards 5G standardization," in Proc. Eur. Conf. Netw. Commun. (EuCNC), Paris, France, 2015, pp. 128-132.
206. Understanding 3GPP Release 12: Standards for HSPA+ and LTE Enhancements, 4G Americas, Bellevue, WA, USA, Feb. 2015. [Online]. Available: http://www.5gamericas.org/files/6614/2359/0457/ 4G-Americas-3GPP-Release-12-Executive-Summary-February- 2015.pdf
207. "More than 50 billion connected devices," Stockholm, Sweden, Ericsson, White Paper, Feb. 2011.
208. H.-K. Lee, D. M. Kim, Y. Hwang, S. M. Yu, and S.-L. Kim, "Feasibility of cognitive machine-to-machine communication using cellular bands," IEEE Wireless Commun. Mag., vol. 20, no. 2, pp. 97-103, Apr. 2013.
209. S.-Y. Lien, K.-C. Chen, and Y. Lin, "Toward ubiquitous massive accesses in 3GPP machine-to-machine communications," IEEE Commun. Mag., vol. 49, no. 4, pp. 66-74, Apr. 2011.
210. M. Xiao et al., "Millimeter wave communications for future mobile networks," IEEE J. Sel. Areas Commun., vol. 35, no. 9, pp. 1909-1935, Sep. 2017.
211. X. Gao, L. Dai, S. Han, I. Chih-Lin, and R. W. Heath, "Energy-efficient hybrid analog and digital precoding for mmWave MIMO systems with large antenna arrays," IEEE J. Sel. Areas Commun., vol. 34, no. 4, pp. 998-1009, Apr. 2016.
212. T. Wu, T. S. Rappaport, and C. M. Collins, "Safe for generations to come: Considerations of safety for millimeter waves in wireless communications," IEEE Microw. Mag., vol. 16, no. 2, pp. 65-84, Mar. 2015.
213. T. Wu, T. S. Rappaport, and C. M. Collins, "The human body and millimeter-wave wireless communication systems: Interactions and implications," in Proc. IEEE Int. Conf. Commun. (ICC), London, U.K., 2015, pp. 2423-2429.
214. F. Khan, LTE for 4G Mobile Broadband: Air Interface Technologies and Performance. New York, NY, USA: Cambridge Univ. Press, 2009.
215. Y. Niu, Y. Li, D. Jin, L. Su, and A. V. Vasilakos, "A survey of millimeter wave communications (mmWave) for 5G: Opportunities and challenges," Wireless Netw., vol. 21, no. 8, pp. 2657-2676, 2015.
216. G. Kalfas, J. Vardakas, L. Alonso, C. Verikoukis, and N. Pleros, "Medium transparent MAC access schemes for seamless packetized fronthaul in mm-wave 5G picocellular networks," in Proc. 19th Int. Conf. Transp. Opt. Netw. (ICTON), Girona, Spain, 2017, pp. 1-4.
217. "Study on 3D channel model for LTE, v12.2.0," 3rd Gener. Partnership Project, Sophia Antipolis, France, Rep. 3GPP TR36.873, 2014.
218. A. Mesodiakaki, F. Adelantado, L. Alonso, M. Di Renzo, and C. Verikoukis, "Energy-and spectrum-efficient user association in millimeter-wave backhaul small-cell networks," IEEE Trans. Veh. Technol., vol. 66, no. 2, pp. 1810-1821, Feb. 2017.
219. A. Mesodiakaki et al., "Energy impact of outdoor small cell backhaul in green heterogeneous networks," in Proc. IEEE 19th Int. Workshop Comput. Aided Model. Design Commun. Links Netw. (CAMAD), Athens, Greece, 2014, pp. 11-15.
220. "Study on channel model for frequency spectrum above 6 GHz, v14.2.0," 3rd Gener. Partnership Project, Sophia Antipolis, France, Rep. 3GPP TR38.900, 2016.
221. N. Giatsoglou, K. Ntontin, E. Kartsakli, A. Antonopoulos, and C. Verikoukis, "D2D-aware device caching in mmWave-cellular networks," IEEE J. Sel. Areas Commun., vol. 35, no. 9, pp. 2025-2037, Sep. 2017.
222. O. Semiari, W. Saad, and M. Bennis, "Joint millimeter wave and microwave resources allocation in cellular networks with dual-mode base stations," IEEE Trans. Wireless Commun., vol. 16, no. 7, pp. 4802-4816, Jul. 2017.
223. M. Shafi et al., "5G: A tutorial overview of standards, trials, challenges, deployment, and practice," IEEE J. Sel. Areas Commun., vol. 35, no. 6, pp. 1201-1221, Jun. 2017.
224. M. Rebato, M. Mezzavilla, S. Rangan, and M. Zorzi, "Resource sharing in 5G mmWave cellular networks," in Proc. IEEE Conf. Comput. Commun. Workshops (INFOCOM WKSHPS), San Francisco, CA, USA, 2016, pp. 271-276.
225. O. Semiari, W. Saad, M. Bennis, and Z. Dawy, "Inter-operator resource management for millimeter wave multi-hop backhaul networks," IEEE Trans. Wireless Commun., vol. 16, no. 8, pp. 5258-5272, Aug. 2017.
226. S. A. Busari, S. Mumtaz, K. M. S. Huq, J. Rodriguez, and H. Gacanin, "System-level performance evaluation for 5G mmWave cellular network," in Proc. IEEE Glob. Telecommun. Conf. (GLOBECOM), Singapore, Dec. 2017, pp. 1-7.