NDLI: Accurate BER analysis and optimum power allocation for adaptive decode-and-forward relaying with frame transmissions

Content Provider	IEEE Xplore Digital Library
Author	Tao Lu Jianhua Ge Ye Yang Yang Gao
Copyright Year	2013
Description	Author affiliation: State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, Shaanxi 710071, China (Tao Lu; Jianhua Ge; Ye Yang; Yang Gao)
Abstract	In this paper, we consider an uncoded cooperative relaying system using an adaptive decode-and-forward (ADF) protocol. Unlike many existing works that adopt single-symbol transmissions, we assume more reasonable frame transmissions here. The primary focus of this paper is on the performance aspects, aiming to offer important theoretical guidance to system designers. Specifically, we derive an accurate bit error rate (BER) expression as well as its asymptotic approximation for the considered ADF cooperative system. The presented analysis shows that the diversity gain can be fully achieved for arbitrary frame length, while the coding gain depends on the frame length. Moreover, by maximizing the coding gain, we obtain an optimum power allocation (OPA) scheme, which can provide a power gain of up to 3 dB over the equal power allocation (EPA) scheme. Simulation results are presented to verify the theoretical analysis.
Starting Page	3471
Ending Page	3475
File Size	294988
Page Count	5
File Format	PDF
ISBN	9781467359382
ISSN	15253511
e-ISBN	9781467359399
e-ISBN	9781467359375
DOI	10.1109/WCNC.2013.6555122
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bit error rate Gain Lead Signal to noise ratio Resource management Cooperative systems Encoding
Content Type	Text
Resource Type	Article

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