Exploiting the multi-path diversity and multi-user cooperation to detect OFDM signals for cognitive radio in low SNR with noise uncertainty

GLOBECOM - IEEE Global Telecommunications Conference

Volumn , Issue , 2009, Pages

  Zeng, Wei ^a   Bi, Guangguo ^a  

^a SOUTHEAST UNIVERSITY   (China)

Author keywords

Cognitive radio; Energy detector; Low SNR; Noise uncertainty; OFDM; Primary user detection

Indexed keywords

COGNITIVE RADIO; ENERGY DETECTORS; FALSE ALARM PROBABILITY; LOW SNR; MULTI-USER; MULTIPATH DIVERSITY; OFDM SIGNAL; SIMULATION RESULT; USER DETECTION; WEAK SIGNALS;

DETECTORS; ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING; ORTHOGONAL FUNCTIONS; RADIO; SIGNAL TO NOISE RATIO;

SIGNAL DETECTION;

EID: 77951587854     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/GLOCOM.2009.5425940     Document Type: Conference Paper

References (14)

1. J. Mitola III and G. Q. Maguire, "Cognitive radio: making software radios more personal," IEEE Pers. Commun., vol. 6, no. 4, pp. 13-18, Aug. 1999.
2. W. Zeng and G. Bi, "Robust Detection of OFDM Signals for Cognitive UWB in Low SNR with Noise Uncertainty," in IEEE 19th international symposium on PIMRC 2008, pp. 1-5.
3. D. Cabric, S. M. Mishra and R. W. Brodersen, "Implementation Issues in Spectrum Sensing for Cognitive Radios," in Conf. Signals, Systems and Computers, 2004, vol. 1, pp. 772-776.
4. S. Haykin, "Cognitive Radio: Brain-Empowered Wireless communications," IEEE J. Sel. Areas Commun., vol. 23, no. 2, pp. 201-220, Feb. 2005.
5. P. De and Y.-C. Liang, "Blind Sensing Algorithms for Cognitive Radio," in Radio and wireless symposium, IEEE 2007, pp. 201-204. (Pubitemid 47298950)
6. E. Visotsky, S. Kuffner and R. Peterson, "On Collaborative Detection of TV Transmissions in Support of Dynamic Spectrum Sharing," in symposium DySPAN 2005, pp. 338-345, Nov. 2005.
7. G. Ganesan and Y. Li, "Cooperative Spectrum Sensing in Cognitive Radio, Part I: Two User Networks," IEEE Trans. Wireless Commun., vol. 6, no. 6, pp. 2204-2213, June 2007.
8. A. Ghasemi and E. S. Sousa, "Collaborative Spectrum Sensing for Opportunistic Access in Fading Environments," in symposium DySPAN 2005, Nov. 2005, pp. 131-136.
9. J. Ma and Y. Li, "Soft Combination and Detection for Cooperative Spectrum Sensing in Cognitive Radio Networks," in IEEE conf. Globecom2007, pp. 3139-3143.
10. Z. Quan, S. Cui and AH. Sayed, "Optimal Linear Cooperation for Spectrum Sensing in Cognitive Radio Networks," IEEE Journal of Selected Topics in Signal Processing, vol. 2, no.1, pp. 28-40, Feb. 2008.
11. A. Sonnenschein and P. M. Fishman, "Radiometric detection of spread-spectrum signals in noise of uncertain power," IEEE Trans. Aerosp. Electron. Syst, vol. 28, no. 3, pp. 654-660, July 1992.
12. R Tandra and A Sahai, "Fundamental limits on detection in low SNR under noise uncertainty," International Conference on Wireless Networks, Communications and Mobile Computing, 2005, vol. 1, pp. 464-469.
13. Y. Zeng and Y-C, Liang, "Covariance based signal detections for cognitive radio," in IEEE conf. Globecom2007, pp. 202-207
14. V. D. Beek, M. Sandell, and P. O. Borjesson, "ML estimation of time and frequency offset in OFDM systems," IEEE Trans. Signal Process., vol. 45, pp. 1800-1805, July 1997.