NDLI: Joint Relay Selection and Power Allocation in Cooperative-Diversity System

Content Provider	IEEE Xplore Digital Library
Author	Xiao Bai Danpu Liu Guangxin Yue Huarui Wu
Copyright Year	2010
Abstract	In this paper, we propose two novel algorithms where relay selection and power allocation are jointly considered in order to optimize ergodic capacity in AF (Amplify-and-forward) cooperative diversity communication. In S-AR algorithm, joint power allocation and relay selection is performed to maximize the received SNR at the destination node. In S-OR algorithm, the best relay with maximal instantaneous channel gain is selected at first, and then power is allocated between source and the relay in an optimized way to maximize ergodic capacity. Through Monte Carlo simulation, a conclusion can be drawn that such selective-relay scenarios with joint power allocation have better throughput performance than that of parallel-relay scenario. Furthermore, S-AR algorithm is better than S-OR algorithm when throughput of the cooperative-diversity system is considered.
Starting Page	361
Ending Page	365
File Size	169011
Page Count	5
File Format	PDF
ISBN	9781424463275
e-ISBN	9781424463282
DOI	10.1109/CMC.2010.80
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Throughput Mobile communication Decoding Telecommunication computing Relays Relay Selection Wireless communication Cooperative-Diversity Power Allocation Wireless networks Forward contracts Amplify-and-Forward Power system relaying Mobile computing
Content Type	Text
Resource Type	Article

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