NDLI: An asymptotic analysis of DS/SSMA communication systems with general linear modulation and error control coding

Content Provider	IEEE Xplore Digital Library
Author	Lok, T.M. Lehnert, J.S.
Copyright Year	1963
Abstract	We investigate direct-sequence spread-spectrum multiple-access (DS/SSMA) communication systems with general linear modulation and error control coding. By the central limit theorem for martingale difference arrays, it is proved that under general conditions, the overall multiple-access interference (MAI) across different symbol intervals tends to a jointly complex Gaussian random vector as both the number of chips per symbol interval and the number of interferers tend to infinity. The result allows the calculation of the limiting exact error probabilities, and justifies the use of the popular standard Gaussian approximation. The asymptotic properties of the MAI from each individual interferer are also examined. The results lead to another approximation, the conditional Gaussian approximation, which provides better estimates to the error probabilities, especially in near-far situations.
Sponsorship	IEEE Information Theory Society
Starting Page	870
Ending Page	881
Page Count	12
File Size	472989
File Format	PDF
ISSN	00189448
Volume Number	44
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiple access interference Modulation coding Error correction Communication systems Gaussian approximation Error probability Random sequences Random variables Spread spectrum communication Vectors
Content Type	Text
Resource Type	Article
Subject	Library and Information Sciences Information Systems Computer Science Applications

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