NDLI: Impact of Imperfect Channel on the Performance of Relay Selection

Content Provider	IEEE Xplore Digital Library
Author	Fei Xu Xianyi Rui
Copyright Year	2015
Description	Author affiliation: Coll. of Electron. & Inf. Eng., Soochow Univ., Suzhou, China (Fei Xu; Xianyi Rui)
Abstract	Opportunistic relay selection(ORS) is a promising approach for cooperative communications owing to its low complexity, since it selects only the best relay. Most of studies about relay selection are assumed in imperfect channel state information. However, in real system, imperfect channel caused by channel estimation errors and feedback delay cannot be ignored. The channel state of the selected relay at the relay selection instant may be differ from the actual channel during data transmission. Feedback delay and channel estimation errors can lead to wrong relay selection. In this paper, we focus on studying the impact of imperfect channel on performance of cooperative communication. Simulation results show that the channel capacity and average bit error rate(BER) of system is sensitive to the feedback delay and the estimation error that decrease performance of system obviously.
Starting Page	151
Ending Page	154
File Size	154685
Page Count	4
File Format	PDF
e-ISBN	9781479918430
DOI	10.1109/ICNISC.2015.30
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Opportunistic relay selection Feedback delay Channel capacity Cooperative communication Bit error rate Channel estimation Channel estimation errors Decode-and-forward Delays Relays Signal to noise ratio
Content Type	Text
Resource Type	Article

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