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ThinkMind // ICWMC 2011, The Seventh International Conference on Wireless and Mobile Communications // View article icwmc_2011_10_30_20255


Spectrum Access during Cognitive Radio Mobiles’ Handoff

Authors:
Emna Trigui
Moez Esseghir
Leila Merghem Boulahia

Keywords: Cognitive radio, Dynamic spectrum access, Mobility, Spectrum sharing, Spectrum handoff

Abstract:
Cognitive radio is an emergent technology in wireless networks that aims to improve spectrum’s use by allowing opportunist access. Recent research activities related to cognitive radio consider static terminals, neglecting the impact of user’s mobility. In this paper, we are interested in the concept of mobility in cognitive radio networks. Thus, we propose an algorithm of spectrum handoff for mobile cognitive radio users. Our algorithm presents a decentralized approach using multi-agent systems. Each terminal is managed by an agent that enables it to negotiate and cooperate with neighboring users. During the handoff, agents recover sensing information then choose appropriate band to switch if spectrum handoff is necessary. Finally, agents use negotiation and cooperation methods to insure a more efficient spectrum sharing.

Pages: 221 to 224

Copyright: Copyright (c) IARIA, 2011

Publication date: June 19, 2011

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-140-3

Location: Luxembourg City, Luxembourg

Dates: from June 19, 2011 to June 24, 2011

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