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ThinkMind // UBICOMM 2012, The Sixth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies // View article ubicomm_2012_4_40_10203


Fair Power Control in Cooperative Systems Based on Evolutionary Techniques

Authors:
Konstantinos Chatzikokolakis
Roi Arapoglou
Andreas Merentitis
Nancy Alonistioti

Keywords: cooperative power control; interference mitigation; fairness; genetic algorithm

Abstract:
Cognitive Radios have emerged as a promising paradigm for increasing spectrum utilization and alleviating the spectrum scarcity problem. However, the majority of works in the Cognitive Radio domain focus on the interaction between the primary and secondary users, while the efficiency and fairness of transmissions between secondary users are rarely explored. In this scope, we introduce an algorithm for fair transmissions in cooperative Cognitive Radio networks. The proposed scheme places particular emphasis on the QoS of underprivileged users, while maintaining a high overall network utility. Specifically, a Genetic Algorithm is designed and used to select transmission power values, under fairness constraints. The proposed algorithm is evaluated through extensive simulations. Results indicate significant improvement in the SINR of underprivileged users with minimal impact in the overall network utility.

Pages: 111 to 116

Copyright: Copyright (c) IARIA, 2012

Publication date: September 23, 2012

Published in: conference

ISSN: 2308-4278

ISBN: 978-1-61208-236-3

Location: Barcelona, Spain

Dates: from September 23, 2012 to September 28, 2012

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