A robust rate-adaptive hybrid ARQ scheme for frequency-hopped spread-spectrum multiple-access communication systems

TitleA robust rate-adaptive hybrid ARQ scheme for frequency-hopped spread-spectrum multiple-access communication systems
Publication TypeJournal Article
Year of Publication1994
AuthorsBigloo, A. M. Y., T. A. Gulliver, Q. Wang, and V. K. Bhargava
JournalSelected Areas in Communications, IEEE Journal on
Volume12
Pagination917 -924
Date Publishedjun.
ISSN0733-8716
Keywordschannel interference reduction, decoder, decoding delay, encoding, error statistics, frequency agility, frequency-hopped spread-spectrum, frequency-hopped SSMA, interference suppression, M-ary symmetric channel, multi-access systems, multiple-access communication systems, performance results, probability, propagation delay, protocols, radiofrequency interference, rate-adaptive coding, rate-adaptive hybrid ARQ, Reed-Solomon codes, spread spectrum communication, spread spectrum multiple access, throughput, undetected error probability, variable rate Reed-Solomon code
Abstract

This paper considers the application of rate-adaptive coding (RAC) to a spread spectrum multiple access (SSMA) communication system. Specifically, RAC using a variable rate Reed-Solomon (RS) code with a single decoder is applied to frequency-hopped SSMA. We show that this combination can accommodate a larger number of users compared to that with conventional fixed-rate coding. This increase is a result of a reduction in the channel interference from other users. The penalty for this improvement in most cases is a slight increase in the delay (composed of propagation and decoding delay). The throughput and the undetected error probability for a M-ary symmetric channel are analyzed, and performance results are presented

URLhttp://dx.doi.org/10.1109/49.298066
DOI10.1109/49.298066

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