Capacity Optimization in Cooperative Cognitive Radio Networks

Authors: Mahdi Pirmoradian, Olayinka Adigun, Christos Politis

Abstract:

Cooperative spectrum sensing is a crucial challenge in cognitive radio networks. Cooperative sensing can increase the reliability of spectrum hole detection, optimize sensing time and reduce delay in cooperative networks. In this paper, an efficient central capacity optimization algorithm is proposed to minimize cooperative sensing time in a homogenous sensor network using OR decision rule subject to the detection and false alarm probabilities constraints. The evaluation results reveal significant improvement in the sensing time and normalized capacity of the cognitive sensors.

Keywords: Cooperative networks, normalized capacity, sensing time.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1338305

References:

[1] Simon Haykin, "Cognitive radio: Brain-empowered wireless communications," IEEE journal on selected areas in communications, vol. 23, no. 2, pp. 201-220, Feburary 2005.
[2] Joseph Mitola III, "Cognitive radio: An integrated agent architecture for software defined radio," KTH Royal Institue of Technology, 2000.
[3] R. Fan and H.Jiang, "Optimal multi-channel cooperative sensing incognitive radio networks," IEEE Transaction in Wireless Communication, vol. 9, no. 3, pp. 1128-1138, March 2010.
[4] W. Zhang and K. B. Letaief, "Cooperative communications for cognitive radio networks," Proceeding of the IEEE, vol. 97, pp. 878–893, 2009.
[5] Nan Zhao, Fei Richard Yu, Hongjian Sun and Arumugam Nallanathan, "Energy-efficient cooperative spectrum sensing schemes for cognitive radio networks," EURASIP Journal onWireless Communications and Networking, pp. 1-13, 2013.
[6] Ian F. Akyildiz, Brandon F. Lo, Ravikumar Balakrishnan, "Cooperative spectrum sensing in cognitive radio networks: A survey," Physical Communication, vol. 4, pp. 40-62, 2011.
[7] Ying-Chang Liang, Yonghong Zeng, Edward C.Y. Peh, and Anh Tuan Hoang, "Sensing-Throughput Tradeoff for Cognitive Radio Networks," IEEE Transactions on Wireless Communications, vol. 7, no. 4, pp. 1326- 1337, April 2008.
[8] Yiyang Pei, Ying-Chang Liang, Kah Chan Teh, and Kwok Hung Li, "How Much Time is Needed for Wideband Spectrum Sensing?," IEEE Transactions on Wireless Communications, vol. 8, no. 11, pp. 5466- 5471, November 2009.
[9] Amir Ghasemi, Elvino S. Sousa, "Opportunistic spectrum access in fading channels through collobrative sensing," Journal of Communication, vol. 2, no. 2, pp. 71-82, May 2007.