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Crystallized Rate Regions in the Secondary Interference Channels
Poznan University of Technology. (Chair of Wireless Communications)
Poznan University of Technology. (Chair of Wireless Communications)
Dresden University of Technology. (Communications Laboratory)
Dresden University of Technology. (Communications Laboratory)
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2012 (English)In: 2012 International ITG Workshop on Smart Antennas (WSA), IEEE conference proceedings, 2012, 312-317 p.Conference paper (Refereed)
Abstract [en]

In this paper the problem of sum-rate maximization for secondary cognitive users (SU) in presence of a primary user (PU) transmission is considered. We assume that all of the users are equipped with multiple transmit/receive antennas and that the cognitive users must not induce more interference to the primary users than it is defined in the permissive policy and expressed in terms of a spectrum mask or interference temperature constraint. We employ game-theory to find the so-called correlated equilibrium that corresponds to the playing strategy definitions for all users. Actually, the Vickrey-Clarke-Groves theory has been applied and the regret-matching algorithm has been implemented to find the optimal playing strategy for both secondary users. New cost function has been proposed that allows for fast convergence of the developed solutions to the optimal or sub-optimal point. Extensive simulation results have been carried out to corroborate the correctness of the proposed approach.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2012. 312-317 p.
Keyword [en]
Cognitive Radio, Interference Channel, Crystallized Rate Region, regret-matching algorithm
National Category
URN: urn:nbn:se:kth:diva-91290DOI: 10.1109/WSA.2012.6181226ScopusID: 2-s2.0-84860486836ISBN: 978-145771924-0OAI: diva2:513672
16th ITG Workshop on Smart Antennas (WSA),7-8 March, 2012, Dresden, Germany
EU, FP7, Seventh Framework Programme, 257626ICT - The Next Generation

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QC 20120605

Available from: 2012-06-05 Created: 2012-03-12 Last updated: 2013-04-15Bibliographically approved

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