NDLI: A General Diversity Gain Function and Its Application in Amplify-and-Forward Cooperative Networks

Content Provider	IEEE Xplore Digital Library
Author	Qijia Liu Xiaoli Ma Zhou, G.T.
Copyright Year	1991
Abstract	The diversity gain function is a unified metric for the asymptotic error performance of wireless communication systems. In this correspondence, we propose a theorem that relates the diversity gain function and the coding gain to the probability density function of the instantaneous signal-to-noise ratio (SNR) at the origin. It provides a general framework for analyzing the asymptotic reliability of wireless communication systems in the presence of fading. As two applications of the proposed theorem, we evaluate two relay selection schemes in fixed-gain amplify-and-forward (AF) cooperative networks. The results show that even if not all channel state information is available at the destination, fixed-gain AF relay selection schemes can still achieve full cooperative diversity and near optimal error performance. This is an outstanding merit that instantaneous-gain AF relay selection schemes do not possess [Y. Jing and H. Jafarkhani, “Single and multiple relay selection schemes and their achievable diversity orders,” IEEE Trans. WIRELESS COMMUN., vol. 8, no. 3, pp. 1414-1423, Mar. 2009].
Sponsorship	IEEE Signal Processing Society
Starting Page	859
Ending Page	863
Page Count	5
File Size	258708
File Format	PDF
ISSN	1053587X
Volume Number	59
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Signal to noise ratio Diversity methods Fading Random variables Wireless communication Probability density function relay selection Asymptotic error performance cooperative network diversity gain function
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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