Electrical and Computer Engineering
2332 Main Mall
Vancouver,
BC
Canada
V6T 1Z4
Tel +1.604.822.2872
Fax +1.604.822.5949
Email:
info@ece.ubc.ca
| Title | A robust rate-adaptive hybrid ARQ scheme for frequency-hopped spread-spectrum multiple-access communication systems |
| Publication Type | Journal Article |
| Year of Publication | 1994 |
| Authors | Bigloo, A. M. Y., T. A. Gulliver, Q. Wang, and V. K. Bhargava |
| Journal | Selected Areas in Communications, IEEE Journal on |
| Volume | 12 |
| Pagination | 917 -924 |
| Date Published | jun. |
| ISSN | 0733-8716 |
| Keywords | channel 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 |
| URL | http://dx.doi.org/10.1109/49.298066 |
| DOI | 10.1109/49.298066 |