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Conference papers

Opportunistic spectrum access with temporal-spatial reuse in cognitive radio networks

Abstract : We formulate and study a multi-user multi-armed bandit (MAB) problem that exploits the temporal-spatial reuse of primary user (PU) channels so that secondary users (SUs) who do not interfere with each other can make use of the same PU channel. We first propose a centralized channel allocation policy that has logarithmic regret, but requires a central processor to solve a NP-complete optimization problem at exponentially increasing time intervals. To avoid the high computation complexity at the central processor and the need for SU synchronization, we propose a heuristic distributed policy that incorporates channel access rank learning in a local procedure at each SU at the cost of a higher regret. We compare the performance of our proposed policies with other distributed policies recently proposed for opportunistic spectrum access. Simulations suggest that our proposed policies significantly outperform the benchmark algorithms when spectrum temporal-spatial reuse is allowed.
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Conference papers
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Contributor : Jean-Baptiste VU VAN Connect in order to contact the contributor
Submitted on : Thursday, August 29, 2019 - 4:41:07 PM
Last modification on : Wednesday, August 31, 2022 - 6:56:04 PM


  • HAL Id : hal-02274360, version 1



Yi Zhang, Wee Peng Tay, Kwok Hung Li, Moez Esseghir, Dominique Gaïti. Opportunistic spectrum access with temporal-spatial reuse in cognitive radio networks. 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Mar 2016, Shanghai, China. pp.3661-3665. ⟨hal-02274360⟩



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