NDLI: A game theoretical approach for coded cooperation in cognitive radio networks

Content Provider	IEEE Xplore Digital Library
Author	Stupia, I. Vandendorpe, L. Andreotti, R. Lottici, V.
Copyright Year	2012
Description	Author affiliation: Department of Information Engineering, University of Pisa, Pisa, Italy (Andreotti, R.; Lottici, V.) \|\| Institute of Information and Communication Technologies, Electronics and Applied Mathematics (ICTEAM), Université catholique de Louvain, Louvain la Neuve, Belgium (Stupia, I.; Vandendorpe, L.)
Abstract	In this paper, the authors focus on a game theoretical approach for cooperation in cognitive radio (CR) networks. In particular, an integrated design framework which relies on the effective SNR methodology is proposed. The authors derive a distributed power allocation policy aimed at maximizing the reliability of a cooperative BIC OFDM link wherein pragmatic modulation and coding schemes are considered. More in detail, the cognitive devices adapt their power to enable efficient cooperation and coexistence between cognitive nodes and primary networks. First of all, the gain due to the cooperation protocol is analytically derived, resorting to a simple first order recursive equation that depends on the current channel conditions. Then, after an accurate formalization of the optimization problem, a distributed iterative solution based on a novel algorithm, named Successive Set Reduction, is proposed. In particular, the authors show that : i) the proposed power allocation policy takes into account the cooperative gain through a simple scalar value, named cooperative effective SNR; ii) it is effective in improving the packet error rate performance with respect to other conventional power allocation strategies, thus allowing a better coverage for the secondary network; iii) the convergence of the distributed algorithm has exponential speed and requires only local signaling between secondary users.
Starting Page	1
Ending Page	6
File Size	521385
Page Count	6
File Format	PDF
ISBN	9781467302746
e-ISBN	9781467302760
DOI	10.1109/ISCCSP.2012.6217850
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-02
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols OFDM Interference Games Vectors Resource management Signal to noise ratio
Content Type	Text
Resource Type	Article

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