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ThinkMind // MOBILITY 2012, The Second International Conference on Mobile Services, Resources, and Users // View article mobility_2012_7_20_40059


Interference-Aware Supermodular Game for Power Control in Cognitive Radio Networks

Authors:
Sonia Fourati
Soumaya Hamouda
Sami Tabbane
Miquel Payaro

Keywords: cognitive radio networks; game theory; power allocation; supermodular game

Abstract:
This Cognitive radio has proved to be a promising solution to improve the utilization of the radio spectrum. This new concept allows different wireless networks to operate on the same spectrum bandwidth. An efficient power control is thus crucial to make this coexistence possible and beneficial. In fact, unlicensed users (or secondary users, SUs) should communicate without harming the Primary users’ (PUs) transmissions. In this paper, we propose a new power control mechanism for the SUs based on a powerful mathematical tool, the Game Theory. Our algorithm is based on a non-cooperative supermodular power control game in which we define a new utility function under total transmit power constraint, but also under interference constraint. We prove the existence of the Nash Equilibrium analytically and by means of simulations.

Pages: 136 to 140

Copyright: Copyright (c) IARIA, 2012

Publication date: October 21, 2012

Published in: conference

ISSN: 2308-3468

ISBN: 978-1-61208-229-5

Location: Venice, Italy

Dates: from October 21, 2012 to October 26, 2012

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