NDLI: A performance study of dual-hop transmissions with fixed gain relays

Content Provider	IEEE Xplore Digital Library
Author	Hasna, M.O. Alouini, M.-S.
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Minnesota Univ., USA (Hasna, M.O.; Alouini, M.-S.)
Abstract	The paper presents a study on the end-to-end performance of dual-hop wireless communication systems equipped with non-regenerative fixed gain relays and operating over flat Rayleigh fading channels. More specifically, it first derives generic closed-form expressions for the outage probability and the average probability of error when the relays have arbitrary fixed gains. It then proposes a specific fixed gain relay that benefits from the knowledge of the first hop's average fading power and compares its performance with previously proposed relay gains that, in contrast, require knowledge of the instantaneous channel state information of the first hop. Finally, the paper investigates the effect of the relay saturation on the performance of the systems under consideration. Numerical results show that non-regenerative systems with fixed gain relays have a comparable performance to non-regenerative systems with variable gain relays. These results also show that relay saturation of these systems results in a minimal loss in performance.
Sponsorship	IEEE Signal Process, Soc
File Size	288998
File Format	PDF
ISBN	0780376633
ISSN	15206149
DOI	10.1109/ICASSP.2003.1202587
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-04-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance gain Power system relaying Digital relays Decoding Rayleigh channels Wireless communication Closed-form solution Channel state information Base stations Fading
Content Type	Text
Resource Type	Article

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