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MAC Protocol Design for Spectrum-agile Wireless Networks: Stochastic Control Approach

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2 Author(s)
Motamedi, A. ; Stanford Univ., Stanford ; Bahai, A.

Widespread deployment of wireless networks under different services including wireless LANs and sensor networks in a shared spectrum has caused many interference and performance issues in dense networks. Specifically, such coexistence poses significant challenges on media access protocol design. This paper addresses this problem by proposing a distributed spectrum-agile MAC (media access control) protocol. It is a multichannel CSMA-based protocol equipped with a dynamic channel selection algorithm. The dynamic channel selection problem is formulated as a multi-armed bandit problem, and the optimal channel selection rules are derived. Finally the advantage of the new protocol is demonstrated through simulation.

Published in:

New Frontiers in Dynamic Spectrum Access Networks, 2007. DySPAN 2007. 2nd IEEE International Symposium on

Date of Conference:

17-20 April 2007