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Performance Evaluation of a Variable Processing Gain DS/CDMA System

Dugin LYU, Yangsoo PARK, Iickho SONG, Hyung-Myung KIM

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Summary :

In this paper, we analyze the multiple access interference of a variable processing gain DS/CDMA system and define discrete partial crosscorrelation functions. We also evaluate the bit error rate of the system using Gaussian approximation and bounding technique. Three kinds of spreading codes (long, short, and random codes) are considered in the analysis of the system. It is shown that the bit error rate of a user is not relevant to the processing gain of interfering users: it is relevant only to the processing gain of the user, transmitted powers, PN sequences, and spreading codes. The performance of short codes turns out to be better than that of long and random codes as in other systems.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E80-A No.2 pp.393-399
Publication Date
1997/02/25
Publicized
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Type of Manuscript
Category
Spread Spectrum Technologies and Applications

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