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http://dx.doi.org/10.4218/etrij.12.0211.0350

Modified 802.11-Based Opportunistic Spectrum Access in Cognitive Radio Networks  

Zhai, Linbo (Shandong Provincial Key Laboratory for Distributed Computer Software Novel Technology, Shandong Normal University)
Zhang, Xiaomin (School of Information Science and Engineering, Shandong University)
Publication Information
ETRI Journal / v.34, no.2, 2012 , pp. 276-279 More about this Journal
Abstract
In this letter, a modified 802.11-based opportunistic spectrum access is proposed for single-channel cognitive radio networks where primary users operate on a slot-by-slot basis. In our opportunistic spectrum access, control frames are used to reduce the slot-boundary impact and achieve channel reservation to improve throughput of secondary users. An absorbing Markov chain model is used to analyze the throughput of secondary users. Simulation results show that the analysis accurately predicts the saturation throughput.
Keywords
Cognitive radio networks; 802.11; opportunistic spectrum access; control frames; slot-by-slot; throughput;
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  • Reference
1 G. Bianchi, "Performance Analysis of the IEEE 802.11 Distributed Coordination Function," IEEE J. Sel. Areas Commun., vol. 18, no. 3, Mar. 2000, pp. 535-547.   DOI
2 J. Mitola III, Cognitive Radio: An Integrated Agent Architecture for Software Defined Radio, PhD thesis, KTH Royal Inst. Technology, Stockholm, Sweden, 2000.
3 J.W. Chong, Y. Sung, and D.K. Sung, "RawPEACH: Multiband CSMA/CA-Based Cognitive Radio Networks," J. Commun. Netw., vol. 11, no. 2, Apr. 2009, pp. 174-185.
4 A.T. Hoang, D.T.C. Wong, and Y. Liang, "Design and Analysis for an 802.11-Based Cognitive Radio Network," Proc. IEEE WCNC, 2009, pp. 1-6.
5 Y.H. Bae, A.S. Alfa, and B.D. Choi, "Performance Analysis of Modified IEEE 802.11-Based Cognitive Radio Networks," IEEE Commun. Lett., vol. 14, no. 10, Oct. 2010, pp. 975-977.   DOI
6 IEEE Std. 802.11-2007, Wireless LAN MAC and PHY Specifications, revision of IEEE 802.11-1999, IEEE LAN/MAN Standards Committee, June 2007.