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Simple Distributed Multihop Diversity Relaying Based on Repetition for Low-Power-Low-Rate Application Open Access


Other title
diversity order
IEEE 802.15.4 standard
relaying network
multihop diversity
Type of item
Degree grantor
University of Alberta
Author or creator
Li, Yanwen
Supervisor and department
Dr. Norman C. Beaulieu (Electrical and Computer Engineering)
Examining committee member and department
Dr. Ehab Elmallah (Computing Science)
Dr. Yindi Jing (Electrical and Computer Engineering)
Department of Electrical and Computer Engineering
Date accepted
Graduation date
Master of Science
Degree level
Low data rate, reliable wireless connectivity among inexpensive fixed, portable and mobile devices is needed in some home automation, industrial control, medical sensing, and reality applications. Such applications are the subject of the IEEE 802.15.4 Standard, and require low power, yet reliable data transfer, but have reduced requirements on data rate and throughput. Multihop relaying systems employing time diversity are proposed for these applications. The performance of repetition-based relaying with amplify-and-forward (AF) and decode-and-forward (DF) protocols operating in Rayleigh fading is studied. Analytical expressions for the symbol error probability (SEP) of the system are derived for both AF and DF relaying protocols. The repetition-based multihop transmission systems achieve diversity order equal to the number of repetitions with AF and DF relaying. It is shown that repetition-based DF relaying systems achieve better SEP than repetition-based AF relaying systems for medium to large values of signal-to-noise ratio.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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