NDLI: Distributed beam-forming and power control in multi-relay underlay cognitive radio networks: A game-theoretical approach

Content Provider	IEEE Xplore Digital Library
Author	Louni, A. Khalaj, B.H.
Copyright Year	2011
Description	Author affiliation: Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran (Louni, A.; Khalaj, B.H.)
Abstract	In this paper, we propose a power control algorithm incorporating distributed beam-forming via multi-relay structure with underlay cognitive radio architecture. This problem is modeled as a non-cooperative game and a novel distributed algorithm is designed to achieve Nash equilibrium (NE). At each iteration, power and beam forming weights are determined while quality of service (QoS) of primary and secondary users are guaranteed in terms of interference threshold and signal to interference and noise (SINR) threshold levels, respectively. Convergence of the proposed algorithm to a unique and sub-optimal fixed point for any given initial resource allocation has been proved. Numerical simulations demonstrate significant improvement in average rate of secondary users in comparison with single-relay algorithms.
Starting Page	71
Ending Page	75
File Size	243072
Page Count	5
File Format	PDF
ISBN	9781457701405
e-ISBN	9781936968190
DOI	10.4108/icst.crowncom.2011.246000
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-01
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	ICST
Subject Keyword	Interference Games Receivers Quality of service Cognitive radio Relays Convergence
Content Type	Text
Resource Type	Article

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Distributed beam-forming and power control in multi-relay underlay cognitive radio networks: A game-theoretical approach