System performance analysis with error-controlled data in a voice/data DS-CDMA system

Author

Lee, Chiho ; Lee, Hokyoung ; Kim, Kiseon

Author_Institution

Dept. of Inf. & Commun., K-JIST, Kwangju, South Korea

Volume

1

fYear

1999

fDate

1999

Firstpage

343

Abstract

In this paper, we analyze the effect of adopting an ARQ protocol in a voice/data DS-CDMA system. Basically, we consider the IS-95 type reverse link DS-CDMA system which supports two kinds of services, traditional voice and data services. This system includes a 1/3 rate convolutional code for FEC and shortened binary CRC codes for ARQ. First, we find the optimum ARQ code rate which maximizes the number of concurrent users. Average packet transmission time and the normalized system throughput are analyzed for various ARQ protocols. The analysis results show that the number of concurrent users is maximized when the ARQ code rate is about 0.935 and the total system throughput is optimized when the ARQ code rate is about 0.97

Keywords

automatic repeat request; binary codes; cellular radio; code division multiple access; convolutional codes; forward error correction; integrated voice/data communication; multimedia communication; packet radio networks; protocols; spread spectrum communication; 1/3 rate convolutional code; ARQ protocol; FEC; IS-95 type reverse link; average packet transmission time; concurrent users; error-controlled data; normalized system throughput; optimum ARQ code rate; shortened binary CRC codes; system performance analysis; total system throughput; voice/data DS-CDMA system; Automatic repeat request; Convolutional codes; Data analysis; Error analysis; Multiaccess communication; Performance analysis; Protocols; Speech analysis; System performance; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

Conference_Location

Amsterdam

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.797153

Filename

797153