NDLI: Efficient performance evaluation of cooperative non-regenerative relay networks

Content Provider	IEEE Xplore Digital Library
Author	Olabiyi, O. Annamalai, A.
Copyright Year	2012
Description	Author affiliation: Center of Excellence for Communication Systems Technology Research, Department of Electrical and Computer Engineering, Prairie View A&M University, TX 77446, USA (Olabiyi, O.; Annamalai, A.)
Abstract	The joint optimization of power allocation and relay position is known to be a frightening problem in the analysis of cooperative relay communication. In this article, we present an efficient framework that tackles this problem for 2-hop cooperative amplify-and-forward (CAF) multi-relay system over generalized fading channel. First, we consider single CAF relay where we investigate (i) the optimum power allocation when the relay is position is fixed, (ii) the optimum relay position when the power allocation is fixed and (iii) the joint optimization of power allocation and the relay position. We then tackle the multi-relay optimization by reducing the multi-parameter search problem to only a 2-parameter search. Our mathematical framework does not only allow us to solve this problem but to solve it in a unified manner over various fading channels. Our analysis also took into consideration the effect of dissimilarity of the channel condition of the relay path on the optimization. This provides additional dimension and new insight on the optimization problem. Numerical results have been presented for representative cases and after careful review of previous works on this subject, we can conclude that our contribution is new, and can be very useful in the deployment of highly efficient CAF relay networks.
Starting Page	797
Ending Page	801
File Size	309173
Page Count	5
File Format	PDF
ISBN	9781457720703
e-ISBN	9781457720710
DOI	10.1109/CCNC.2012.6181167
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-01-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Resource management Fading Optimization Equations Joints Signal to noise ratio node placement approximate cooperative diversity systems MGF method amplify-and-forward relay optimum power allocation relay location
Content Type	Text
Resource Type	Article

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