Collaborative spectrum sharing based on information pooling for cognitive radio networks with channel heterogeneity

Longwei Wang, Xianfu Chen, Zhifeng Zhao, Honggang Zhang

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Abstract

In this paper, we investigate the problem of multiuser channel selection in cognitive radio networks (CRN) with heterogenous channel availability. We consider a practical scenario where the channel availability statistics are unknown. Due to limited sensing capabilities, secondary users (SUs) can only sense partial of the channels. In this case, secondary users can collaboratively share their respective sensing results to gather enough information about the statistics of the unknown channels. By taking into account the competition among SUs, We formulate the problem of multiuser channel selection as an evolutionary game in which SUs make their decisions under replicator dynamics. Furthermore, we develop a decentralized channel selection algorithm based on learning automata, and prove that the replicator dynamics can converge to the evolutionary stable strategy efficiently. Simulation results show that our proposed learning algorithm helps SUs share the spectrum efficiently and the system throughput obtained outperforms that of the random access scheme.

Original languageEnglish
Title of host publication11th International Symposium on Communications and Information Technologies, ISCIT 2011
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages483-488
ISBN (Electronic)978-1-4577-1295-1, 978-1-4577-1293-7
ISBN (Print)978-1-4577-1294-4
DOIs
Publication statusPublished - 26 Dec 2011
MoE publication typeA4 Article in a conference publication
Event11th International Symposium on Communications and Information Technologies, ISCIT 2011 - Hangzhou, China
Duration: 12 Oct 201114 Oct 2011

Conference

Conference11th International Symposium on Communications and Information Technologies, ISCIT 2011
CountryChina
CityHangzhou
Period12/10/1114/10/11

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Wang, L., Chen, X., Zhao, Z., & Zhang, H. (2011). Collaborative spectrum sharing based on information pooling for cognitive radio networks with channel heterogeneity. In 11th International Symposium on Communications and Information Technologies, ISCIT 2011 (pp. 483-488). [6092154] IEEE Institute of Electrical and Electronic Engineers . https://doi.org/10.1109/ISCIT.2011.6092154