Spectrum decision in cognitive radio networks: A survey

IEEE Communications Surveys and Tutorials

Volumn 15, Issue 3, 2013, Pages 1088-1107

  Masonta, Moshe Timothy ^a,b   Mzyece, Mjumo ^c   Ntlatlapa, Ntsibane ^a  

^a DSI CSIR Nanotechnology Innovation Centre   (South Africa)

^b TSHWANE UNIVERSITY OF TECHNOLOGY   (South Africa)

^c Tshwane University of Technology   (South Africa)

Author keywords

Cognitive Radio; Primary User; Reconfiguration; Secondary User; Spectrum Characterization; Spectrum Decision; Spectrum Selection

Indexed keywords

PRIMARY USERS; RECONFIGURATION; SECONDARY USERS; SPECTRUM CHARACTERIZATIONS; SPECTRUM DECISIONS; SPECTRUM SELECTIONS;

CHARACTERIZATION; COGNITIVE RADIO; SURVEYS;

QUALITY OF SERVICE;

EID: 84881313739     PISSN: None     EISSN: 1553877X     Source Type: Journal    
DOI: 10.1109/SURV.2012.111412.00160     Document Type: Article

References (101)

1. Federal Communications Commission, Notice of proposal rulemaking and order, ET Docket No. 03-322, USA, Nov. 2003.
2. I. F. Akyildiz, W.-Y. Lee, M. C. Vuran, and S. Mohanty, "NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey," Elsevier Computer Networks, vol. 50, no. 13, pp. 2127-2159, 2006. (Pubitemid 43975031)
3. M. A. McHency, P. A. Tenhula, D. McCloskey, D. A. Reberson, and C. S. Hood, "Chicago spectrum occupancy measurements and analysis and a long-term studies proposal protocol," in Proc. 1st Int. Workshop on Technology and Policy for Accessing Spectrum, Boston, MA, USA, Aug. 5 2006.
4. Q. Zhao and B. M. Sadler, "A survey of dynamic spectrum access," IEEE Signal Processing Mag., vol. 24, no. 3, pp. 79-89, May 2007. (Pubitemid 46840190)
5. Federal Communications Commission, FCC adopts rules for unlicensed use of television white spaces, Media Release, USA, Accessed: 18/04/2011. [Online]. Available: http://transition.fcc.gov/sptf/headlines2008.html, Nov. 4 2008.
6. Office of Communications, Statement on cognitive access to interleaved spectrum, United Kingdom, Accessed: 18/04/2011. [Online]. Available: http://stakeholders.ofcom.org.uk/binaries/consultations/cognitive/statement/ statement.pdf, Jul. 2009.
7. M. Nekovee, "A survey of cognitive radio access on TV white spaces," Hindawi International Journal of Digital Multimedia Broadcasting, Article ID: 236568, pp. 1-11, 2010.
8. J. Mitola and G. Q. Maguire, "Cognitive radio: making software radio more personal," IEEE Personal Commun. Mag., vol. 6, no. 4, pp. 13-18, Aug. 1999.
9. C. E. Shannon, "A mathematical theory of communication," The Bell System Tech. J., vol. 27, pp. 379-423/623-656, Jul./Oct. 1948.
10. C. Santivanez, R. Ramanathan, C. Partridge, R. Krishnan, M. Condell, and S. Polit, "Opportunistic spectrum access: challenges, architecture, protocols," in Proc. Int. Wireless Internet Conference (WICOM), Boston, USA, Aug. 2-5 2006.
11. S. Haykin, "Cognitive radio: brain-empowered wireless communications," IEEE J. Sel. Areas Commun., vol. 23, no. 2, pp. 201-220, 2005. (Pubitemid 40245487)
12. M. Fitch, M. Nekovee, S. Kawade, K. Briggs, and R. MacKenzie, "Wireless services provision in TV white space with cognitive radio technology: a telecom operator's perspective and experience," IEEE Commun. Mag., vol. 49, no. 3, pp. 64-73, Mar. 2010.
13. R. Murty, R. Chandra, T. Moscibroda, and P. Bahl, "SenseLess: A database-driven white spaces network," IEEE Trans. Mobile Computing, vol. 11, no. 2, pp. 189-203, Feb. 2012.
14. I. F. Akyildiz, B. F. Lo, and R. Balakrishnan, "Cooperative spectrum sensing in cognitive radio networks: a survey," Elsevier Personal Communciations, vol. 4, pp. 40-62, 2011.
15. C. F. Shih, W. Liao, and H. Chao, "Joint routing and spectrum allocation for multi-hop cognitive radio networks with route robustness consideration," IEEE Trans. Wireless Commun., vol. 10, no. 9, pp. 2940-2949, Sep. 2011.
16. S. Ju and J. B. Evans, "Scalable cognitive routing protocol for mobile ad-hoc networks," in Proc. IEEE GLOBECOM, Miami, Florida, USA, Dec. 6-10 2010.
17. C. Cordeiro, K. Challapali, D. Birru, and S. Sai, "IEEE 802.22: an introduction to the first wireless standard based on cognitive radios," Academy J. Communications, vol. 1, no. 1, pp. 38-47, Apr. 2006.
18. IEEE Std 802.22, Part 22: Cognitive wireless RAN medium access control (MAC) and Physical layer (PHY) specifications: Policies and procedures for operation in the TV bands, IEEE Computer Society, New York, USA, Jul. 2011.
19. G. Ko, A. A. Franklin, S. J. You, J. S. Pak, M. S. Song, and C. J. Kim, "Channel management in IEEE 802.22 WRAN systems," IEEE Commun. Mag., vol. 48, no. 9, pp. 88-94, Sep. 2010.
20. IEEE DySPAN Standards Committee DySPAN-SC, IEEE Std. IEEE DySPAN. [Online]. Available: http://grouper.ieee.org/groups/scc41/
21. R. V. Prasad, P. Pawelczak, J. A. Hoffmeyer, and H. S. Berger, "Cognitive functionality in next generation wireless networks: standardization efforts," IEEE Commun. Mag., vol. 46, no. 4, pp. 72-78, Apr. 2008. (Pubitemid 351593410)
22. M. Mueck, A. Piipponen, K. Kalliojarvi, G. Dimitrakopoulos, K. Tsagkaris, P. Demestichas, F. Casadevall, J. Perez-Romero, O. Sallent, G. Baldini, S. Filin, H. Harad, M. Debbah, T. Haustein, J. Gebert, B. Deschamps, P. Bender, M. Street, S. Kandeepan, J. Lota, and A. Hayar, "ETSI reconfigurable radio systems: Status and future directions on software defined radio and cognitive radio standards," IEEE Commun. Mag., vol. 48, no. 9, pp. 78-86, Sep. 2010.
23. S. Filin, H. Harada, H. Murakami, and K. Ishizu, "International standardization of cognitive radio systems," IEEE Commun. Mag., vol. 49, no. 3, pp. 82-89, Mar. 2011.
24. ITU-R Study Group, Working Document towards Draft CPM Text on WRC-12 Agenda Item 1.19, Annex 5 to Document 1B/158, ITU, Accessed: 20/07/2011. [Online]. Available: http://www.itu.int, Feb. 2010.
25. ITU-R Study Group, Preliminary draft new report ITU-R [LMS.CRS1]: first report on cognitive radio systems in the land mobile service, ITU, Annex 21 to Document 5S/703-E. [Online]. Available: http://www.itu.int/md/R07-WP5A/new, Jun. 2011.
26. W.-Y. Lee and I. F. Akyildiz, "A spectrum decision framework for cognitive radio networks," IEEE Trans. Mobile Computing, vol. 10, no. 2, pp. 161-174, Feb. 2011.
27. J. Mitola, "The software radio architecture," IEEE Communications Magazine, vol. 33, no. 5, pp. 26-38, May 1995.
28. J. Wang, M. Ghosh, and K. Challapali, "Emerging cognitive radio applications: a survey," IEEE Commun. Mag., vol. 49, no. 3, pp. 74-81, Mar. 2011.
29. M. Hoyhtya, S. Pollin, and A. Mammela, "Improving the performance of cognitive radios through classification, learning, and predictive channel selection," Advances in Electronics and Telecommunications, vol. 2, no. 4, pp. 28-38, Dec. 2011.
30. V. Kolar, A. Gerco, T. Milcher, M. Petrova, and P. Mahonen, "Capacity estimation and adaptation in cognitive radio networks: Demonstrating software defined radios in action," in Proc. ACM Int. Conference on Mobile Computing and Networking (MobiCom), Beijing, China, Sep. 20-25 2009.
31. W.-Y. Lee and I. F. Akyildiz, "Optimal spectrum sensing framework for cognitive radio networks," IEEE Trans. Wireless Commun., vol. 7, no. 10, pp. 3845-3857, 2008.
32. G. Wu, S. Singh, and T. Chiueh, "Implementation of dynamic channel switching on ieee 802.11-based wireless mesh networks," in Proc. International Wireless Internet Conference (WICON), Hawaii, USA, Nov. 17-19 2008.
33. A. Azarfar, J. F. Frigon, and B. Sanso, "Improving the reliability of wireless networks using cognitive radios," IEEE Communications Surveys Tutorials, vol. 14, no. 2, pp. 338-354, 2012.
34. D. Xu, E. Jung, and X. Liu, "Optimal bandwidth selection in multichannel cognitive radio networks: How much is too much?" in Proc. IEEE Int. Symposium for New Frontiers in DySPAN, Chicago, Illinois, USA, Oct. 14-17 2008.
35. G. Cheng, W. Liu, Y. Li, and W. Cheng, "Joint on-demand routing and spectrum assignment in cognitive radio networks," in Proc. IEEE Int. Conference on Communications, Glasgow, Scotland, Jun. 24-28 2007.
36. Z. Liang, S. Feng, D. Zhao, and X. Shen, "Delay performance analysis for supporting real-time traffic in a cognitive radio sensor network," IEEE Trans. Wireless Commun., vol. 10, no. 1, pp. 325-335, Jan. 2011.
37. M. Amir, A. El-Keyi, and M. Nafie, "Constrained interference alignment and the spatial degrees of freedom of mimo cognitive networks," IEEE Trans. Inf. Theory, vol. 57, no. 5, pp. 2994-3004, May 2011.
38. S. M. Almalfouh and G. L. Stber, "Interference-aware radio resource allocation in OFDMA-based cognitive radio networks," IEEE Trans. Veh. Technol., vol. 60, no. 4, pp. 1999-3004, May 2011.
39. H. Bogucka, A. M. Wyglinski, S. Pagadarai, and A. Kliks, "Spectrally agile multicarrier waveforms for opportunistic wireless access," IEEE Commun. Mag., vol. 49, no. 6, pp. 108-115, Jun. 2011.
40. T. Li, W. Mow, V. Lau, M. Siu, R. S. Cheng, and R. D. Murch, "Robust joint interference detection and decoding for OFDM-based cognitive radio systems with unknown interference," IEEE J. Sel. Areas Commun., vol. 25, no. 3, pp. 566-575, Apr. 2007. (Pubitemid 46620951)
41. A. Rabbachin, T. Q. S. Quek, H. Shin, and M. Z. Win, "Cognitive network interference," IEEE J. Sel. Areas Commun., vol. 29, no. 2, pp. 480-493, Feb. 2011.
42. V. Pla, J. R. Vidal, J. Martinez-Bauset, and L. Guijarro, "Modeling and characterization of spectrum white spaces for underlay cognitive radio networks," in Proc. IEEE Int. Conference on Communications (ICC), Cape Town, South Africa, May 23-27 2010.
43. Y. Yuan, P. Bahl, R. Chandra, T. Moscibroda, and Y. Wu, "Allocating dynamic time-spectrum blocks in cognitive radio networks," in Proc. ACM International Symposium on Mobile ad hoc Networking and Computing Wireless Communications and Networking Conference, Quebec, Canada, Sep. 9-14 2007.
44. M. Matinmikko, M. Hoyhtya, M. Mustonen, H. Sarvanko, A. Hekkala, M. Katz, A. Mammela, M. Kiviranta, and A. Kautio, "Cognitive radio: an intelligent wireless communication system," Tech. Rep., 2008.
45. H. A. Suraweera, P. J. Smith, and M. Shafi, "Capacity limits and performance analysis of cognitive radio with imperfect channel knowledge," IEEE Trans. Veh. Technol., vol. 59, no. 4, pp. 1811-1822, May 2010.
46. A. K. Kaur and A. K. Sharma, "BER performance analysis of cognitive radio physical layer over rayleigh fading channel," International J. Computer Applications, vol. 25, no. 11, pp. 25-29, Jul. 2011.
47. Working Group on Wireless Regional Area Networks, IEEE Std. 802.22, 2011. [Online]. Available: http://www.ieee802.org/22/
48. T. S. Rappaport, Wireless Communications: Principles and Practice. 2nd ed. Prentice-Hal, 2002.
49. M. B. Pursley and T. C. Royster, "Low-complexity adaptive transmission for cognitive radios in dynamic spectrum access networks," IEEE J. Sel. Areas Commun., vol. 26, no. 1, pp. 83-94, Jan. 2008.
50. D. A. Roberson, C. S. Hood, J. L. LoCicero, and J. T. MacDonald, "Spectrum occupancy and interference studies in support of cognitive radio technology deployment," in Proc. 1st IEEE Workshop on Networking Technology for Software Defined Radio, Reston, Virginia, USA, Sep. 26-35 2006.
51. Q. Zhao, L. Tong, and A. Swami, "Decentralized cognitive MAC for dynamic spectrum access," in Proc. 1st IEEE Int. Symposium for New Frontiers in DySPAN, Reston, Virginia, USA, Sep. 26-35 2005.
52. B. Canberk, I. F. Akyildiz, and S. Oktug, "Primary user activity modeling using first-difference filter clustering and correlation in cognitive radio networks," IEEE/ACM Trans. Netw., vol. 19, no. 1, pp. 170-183, Feb. 2011.
53. C. Chou, S. Shankar, H. Kim, and K. G. Shin, "What and how much to gain by spectrum agility," IEEE J. Sel. Areas Commun., vol. 25, no. 3, pp. 576-588, Apr. 2007.
54. A. A. Daoud, M. Alanyali, and D. Starobinski, "Secondary pricing of spectrum in cellular CDMA networks," in Proc. IEEE Int. Symposium for New Frontiers in DySPAN, Dublin, Ireland, Apr. 17-20 2007.
55. D. Willkomm, S. Machiraju, J. Bolot, and A. Wolisz, "Primary users in cellular networks: a large-scale measurement study," in Proc. IEEE Int. Symposium for New Frontiers in DySPAN, Chicago, Illinois, USA, Oct. 14-17 2008.
56. V. Paxson and S. Floyd, "Wide-area traffic: the failure of poison modelling," IEEE/ACM Trans. Netw., vol. 3, no. 3, pp. 226-244, 1995.
57. P. A. K. Acharya, S. Singh, and H. Zheng, "Reliable open spectrum communications through proactive spectrum access," in Proc. ACM 66th Int. Workshop on Technology and Policy for Accessing Spectrum, Boston, USA, Aug. 2-5 2006.
58. S. Yarkan and H. Arslan, "Binary time series approach to spectrum prediction for cognitive radio," in Proc. IEEE Veh. Technol. Conference, Baltimore, USA, Sep./Oct. 30-3 2007.
59. J. Riihijarvi, P. Mahonene, M. Wellens, and M. Gordziel, "Characterization and modelling of spectrum for dynamic spectrum access with spatial statistics and random fields," in Proc. IEEE 19th Int. Symposium on Personal, Indoor and Mobile Radio Communications, Cannes, Sep. 15-18 2008.
60. P. A. P. Moran, "Notes on continuous stochastic phenomena," Biometrika, vol. 37, no. 1, pp. 17-23, 1950.
61. R. C. Geary, "The contiguity ratio and statistical mapping," The Incorporated Statistician, vol. 5, no. 3, pp. 115-145, Nov. 1954.
62. C. Ghosh, S. Pagadarai, D. Agrawal, and A. Wyglinski, "A framework for statistical wireless spectrum occupancy modeling," IEEE Trans. Wireless Commun., vol. 9, no. 1, pp. 38-44, Jan. 2010.
63. R. Chandra, R. Mahajan, T. Moscibroda, R. Raghavendra, and P. Bahl, "A case for adapting channel width in wireless networks," in Proc. ACM SIGCOMM Conference on Applications, Technologies, Architectures, and Protocols for Computer Communications, Seattle, USA, Aug. 17-22 2008.
64. P. Bahl, R. Chandra, T. Moscibroda, and R. Murty, "White space networking with Wi-Fi like connectivity," in Proc. ACM SIGCOMM Conference on Applications, Technologies, Architectures, and Protocols for Computer Communications, Barcelona, Spain, Aug. 17-21 2009.
65. I. Malanchini, M. Cesana, and N. Gatti, "On spectrum selection games in cognitive radio networks," in Proc. IEEE GLOBECOM, Honolulu, Hawaii, USA, Nov./Dec. 30-4 2009.
66. D. Na, H. Nan, and S. Yoo, "Policy-based dynamic channel selection architecture for cognitive radio networks," in Proc. IEEE Int. Conference on Communications and Networking in China, Shanghai, China, Aug. 22-24 2007.
67. I. F. Akyildiz, W.-Y. Lee, and K. R. Chowdhury, "CRAHNS: cognitive radio ad hoc networks," Elsevier Journal on Ad Hoc Networks, vol. 7, pp. 810-826, 2009.
68. H. Khalife, S. Ahuja, N. Malouch, and M. Krunz, "Joint routing and spectrum selection for multihop cognitive radio networks," Tech. Rep., 2007. [Online]. Available: http://www-rp.lip6.fr/̃khalife/techreport. pdf, 2007.
69. Q. Wang and H. Zheng, "Route and spectrum selection in dynamic spectrum networks," in Proc. IEEE 3rd Consumer Communications and Networking Conference, Las Vegas, USA, Jan. 8-10 2006.
70. H. Khalife, S. Ahuja, N. Malouch, and M. Krunz, "Probabilistic path selection in opportunistic cognitive radio networks," in Proc. IEEE GLOBECOM, New Orleans, USA, Nov./Dec. 30-4 2008.
71. L. Ding, T. Melodia, S. N. Batalama, J. D. Matyjas, and M. J. Medley, "Cross-layer routing and dynamic spectrum allocation in cognitive radio ad hoc networks," IEEE Trans. Veh. Technol., vol. 54, no. 4, pp. 1969-1979, May 2010.
72. S. Sengupta and K. P. Subbalakshmi, "Open research issues in multihop cognitive radio networks," To appear in IEEE Commun. Mag., 2012.
73. M. Hong, J. Kim, and Y. Shin, "An adaptive transmission scheme for cognitive radio systems based on interference temperature model," in Proc. IEEE Consumer Communications and Networking Conference, Las Vegas, USA, Jan. 10-12 2008.
74. Z. Ha and K. J. R. Liu, Resource allocation for wireless networks: basics, techniques, and applications, 1st ed. New York, USA: Cambridge University Press, 2008.
75. Y. Che, J. Wang, J. Chen, W. Tang, and S. Li, "Hybrid power control scheme in hierarchical spectrum sharing network for cognitive radio," Elsevier Physical Communications, vol. 2, no. 1-2, pp. 73-86, Mar-Jun. 2009.
76. W. Ren, Q. Zhao, and A. Swami, "Power control in spectrum overlay networks: how to cross a multi-lane highway," in Proc. IEEE Int. Conference on Acoustic, Speech and Signal Processing, Las Vegas, USA, Mar./Apr. 31-4 2008.
77. T. Weingart, D. C. Sicker, and D. Grunwald, "A statistical method for reconfiguration of cognitive radios," IEEE Wireless Commun., vol. 14, no. 4, pp. 34-40, Aug. 2007. (Pubitemid 47397731)
78. P. Demestichas, G. Dimitrakopoulos, K. Tsagkaris, K. Demestichas, and J. Adamopoulou, "Reconfigurations selection in cognitive, beyond 3G, radio infrastructures," in Proc. Int. Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), Mykonos Island, Greece, Jun. 8-10 2006.
79. A. T. Hoang and Y.-C. Liang, "A two-phase channel and power allocation scheme for cognitive radio networks," in Proc. IEEE Int. Symposium on Personal, Indoor and Mobile Radio Communications, Helsinki, Finland, Sep. 11-14 2006.
80. P. Kaur, M. Uddin, and A. Khosla, "Adaptive bandwidth allocation scheme for cognitive radios," International J. Advancements in Computing Technology, vol. 2, no. 2, pp. 35-41, Jun. 2010.
81. D. I. Kim, L. B. Le, and E. Hossain, "Joint rate and power allocation for cognitive radios in dynamic spectrum access environment," IEEE Trans. Wireless Commun., vol. 7, no. 12, pp. 5517-5527, Dec. 2008.
82. A. He, K. K. Bae, T. R. Newman, J. Gaeddert, K. Kim, R. Menon, L. Morales-Tirado, J. Neel, Y. Zhao, R. J. H, and W. H. Tranter, "A survey of artificial intelligence for cognitive radios," IEEE Trans. Veh. Technol., vol. 59, no. 4, pp. 1578-1592, May 2010.
83. S. Srinivasa and S. A. Jafar, "Soft sensing and optimal power control for cognitive radio," in Proc. IEEE Global Telecoms Conference, Washington D.C., USA, Nov. 26-30 2007.
84. L. Li, X. Zhou, H. Xu, G. Y. Li, D. Wang, and A. Soong, "Energyefficient transmission in cognitive radio networks," in Proc. IEEE Consumer Comm. and Networking Conference, Las Vegas, USA, Jan. 9-12 2010.
85. A. He, S. Srikanteswara, J. H. Reed, X. Chen, W. H. Tranter, K. K. Bae, and M. Sajadieh, "Minimizing energy consumption using cognitive radio," in Proc. IEEE Int. Performance Computing and Communications Conference, Austin, Texas, USA, Dec. 7-9 2008.
86. G. Miao, N. Himayat, and G. Y. Li, "Energy-efficient link adaptation in frequency selection channels," IEEE Trans. Commun., vol. 57, no. 2, pp. 545-554, Feb. 2010.
87. P. Pawelczak, K. Nolan, L. Doyle, S. W. Oh, and D. Cabric, "Cognitive radio: ten years of experimentation and demonstration," IEEE Commun. Mag., vol. 49, no. 3, pp. 90-100, Mar. 2011.
88. O. Gustafsson, K. Amiri, D. Andersson, A. Blad, C. Bonnet, J. R. Cavallaro, J. Declerck, A. Dejonghe, P. Eliardsson, M. Glasse, A. Hayar, L. Hollevoet, C. Hunter, M. Joshi, F. Kaltenberger, R. Knopp, K. Le, Z. Miljanic, P. Murphy, F. Naessens, N. Nikaein, D. Nussbaum, R. Pacalet, P. Raghavan, A. Sabharwal, O. Sarode, P. Spasojevic, S. Yang, H. M. Tullberg, T. Vander-Aa, L. Van der Perre, M. Wetterwald, and M. Wu, "Architectures for cognitive radio testbeds and demonstrators an overview," in Proc. Int. Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), Cannes, Jun. 9-11 2010.
89. Universal software radio peripheral (USRP). Ettus Research. [Online]. Available: http://www.ettus.com/
90. GNU radio website. [Online]. Available: http://gnuradio.org/redmine/
91. Z. Sun, G. Bradford, and J. N. Laneman, "Demonstration of sequence detection algorithms for dynamic spectrum access networks," in Proc. IEEE Int. Symposium for New Frontiers in DySPAN, Singapore, Apr. 6-9 2010.
92. V. Pejovic and E. Belding, "A context-aware approach to wireless transmission adaptation," in Proc. IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON), Utah, Salt Lake City, USA, Jun. 27-30 2011.
93. M. T. Masonta, D. Johnson, and M. Mzyece, The White Space Opportunity in Southern Africa: Measurements with Meraka Cognitive Radio Platform, R. Popescu-Zeletin, K. Jonas, I. A. Rai, R. Glitho, and A. Villafiorita, Eds. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering (LNICST), Part 1, Volume 92, e-Infrastructure and e-Services for Developing Countries, pp. 64-73, Feb. 2012.
94. K. Mandke, S. Choi, G. Kim, R. Grant, R. C. Daniels, W. Kim, R. W. Heath, and S. Nettles, "Early results on hydra: a flexible MAC/PHY multihop testbed," in Proc. IEEE Vehicular Technology Conference, Dublin, Ireland, Apr. 23-25 2007.
95. M. Zivkovic, D. Auras, and R. Mathar, "OFMD-based dynamic spectrum access," in Proc. IEEE Int. Symposium for New Frontiers in DySPAN, Singapore, Apr. 6-9 2010.
96. K. G. Nezami, P. W. Stephen, and S. D. Walker, "Handel-C implementation of early-access partial reconfiguration for software defined radio," in Proc. IEEE Wireless Communications and Networking Conference, Las Vegas, USA, Mar./Apr. 31-3 2008.
97. Y. Yuan, P. Bahl, R. Chandra, P. A. Chou, J. I. Ferrell, T. Moscibroda, S. Narlanka, and Y. Wu, "KNOWS: cognitive radio networks over white spaces," in Proc. 2nd IEEE Int. Symposium for New Frontiers in DySPAN, Dublin, Ireland, Apr. 17-20 2007.
98. S. Haykin, "Cognitive radio: research challenges," in Proc. IEEE Vehicular Technology Conference, Calgary, Canada, Sep. 21-24 2008.
99. T. Maseng and T. Ulversory, "Dynamic frequency broker and cognitive radio," in Proc. IET Seminar on Cognitive Radio and Software Defined Radio: Technology and Techniques, London, UK, Sep. 18 2008.
100. W. Saad, Z. Han, M. Debbah, A. Hjorungnes, and T. Basar, "Coalitional game theory for communication networks: a tutorial," IEEE Signal Processing Mag., vol. 26, no. 5, pp. 77-97, Sep. 2009.
101. A. M. Hayar, R. Knopp, and R. Pacalet, "Cognitive radio research and implementation challenges," in Proc. IEEE Asilomar Conference on Signals, Systems and Computers, Pacific Grove, USA, Nov. 4-7 2007.