Performance analysis of modified IEEE 802.11-based cognitive radio networks

Authors:
Yun Han Bae;Attahiru S. Alfa;Bong Dae Choi
Affiliations:
Department of Mathematics, Korea University, Seoul, Korea;Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB, Canada;Department of Mathematics, Korea University, Seoul, Korea
Venue:
IEEE Communications Letters
Year:
2010

Citing 2
Cited 1

Design and analysis for an 802.11-based cognitive radio network

WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
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IEEE Journal on Selected Areas in Communications

Analysis of a contention-based opportunistic spectrum access under general channel activity model

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Abstract

This letter considers a modified IEEE 802.11-based cognitive radio network where primary users (PUs) operate on a slot-by-slot basis and secondary users (SUs) try to exploit the time unused by primary users (PUs). To improve the throughput for SUs, our IEEE 802.11-based opportunistic spectrum access (OSA) allows SUs to transmit packets with variable length depending on the remaining time of the current slot. To investigate the throughput for SUs, a novel analytical model is developed. Also, analytical results are validated by extensive simulation.