Message-passing algorithms for optimal utilization of cognitive radio networks

Hamed Mahmoudi, Georgios Rodolakis, Leonidas Georgiadis, David Saad

Research output: Chapter in Book/Report/Conference proceedingConference publication

Abstract

Cognitive Radio has been proposed as a key technology to significantly improve spectrum usage in wireless networks by enabling unlicensed users to access unused resource. We present new algorithms that are needed for the implementation of opportunistic scheduling policies that maximize the throughput utilization of resources by secondary users, under maximum interference constraints imposed by existing primary users. Our approach is based on the Belief Propagation (BP) algorithm, which is advantageous due to its simplicity and potential for distributed implementation. We examine convergence properties and evaluate the performance of the proposed BP algorithms via simulations and demonstrate that the results compare favorably with a benchmark greedy strategy.
Original languageEnglish
Title of host publication2013 IEEE International Conference on Communications Workshops, ICC 2013
PublisherIEEE
Pages1393-1397
Number of pages5
ISBN (Print)978-1-4673-5753-1
DOIs
Publication statusPublished - 2013

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    Mahmoudi, H., Rodolakis, G., Georgiadis, L., & Saad, D. (2013). Message-passing algorithms for optimal utilization of cognitive radio networks. In 2013 IEEE International Conference on Communications Workshops, ICC 2013 (pp. 1393-1397). IEEE. https://doi.org/10.1109/ICCW.2013.6649455