NDLI: Joint source and relay power optimization in multiuser cooperative wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Ying Jin Zhang, Y.D.
Copyright Year	2010
Description	Author affiliation: Center for Advanced Communications, Villanova University, PA 19085 USA (Ying Jin; Zhang, Y.D.)
Abstract	This paper considers the minimization of overall power transmitted from source and relay nodes in a multiuser cooperative network, constrained with the quality of service (QoS) of each user determined by their output signal-to-interference-plus-noise ratio (SINR). In this paper, we consider a two-hop cooperative wireless network consisting of single-antenna nodes in which multiple concurrent links are relayed by a number of cooperative nodes. Unlike the previous relevant works that either consider the source power or relay weight optimization or their joint optimization in a separate sense, this paper considers them in the same platform and thus achieves overall transmit power minimization. It is shown that optimized power distribution over the source and relay nodes depends on the channel conditions and thus requires joint optimization operation as proposed in this paper. Compared to the previously developed schemes, the joint power optimization developed in this paper offers significant transmit power reduction and QoS satisfactions.
Starting Page	1
Ending Page	4
File Size	3945723
Page Count	4
File Format	PDF
ISBN	9781424462858
e-ISBN	9781424462872
DOI	10.1109/ISCCSP.2010.5463500
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-03-03
Publisher Place	Cyprus
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Constraint optimization Wireless sensor networks Array signal processing Wireless networks Process control Communication system control Quality of service Signal processing Relays Signal to noise ratio
Content Type	Text
Resource Type	Article

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