Distribution of SIR and BER performance of DS-CDMA systems in lognormally shadowed Rician channels

Author

Tjhung, T.T. ; Chai, C.C.

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

2

fYear

1998

fDate

2-4 Sep 1998

Firstpage

430

Abstract

New closed form expressions for the probability density function (PDF) and the cumulative distribution function (CDF) of the ratio of L _S Rician signals to L_I Rician interferers, so called signal to interference ratio (SIR), are derived. These SIR distributions are then used to evaluate the bit error rate (BER) performance of direct sequence (DS) code division multiple access (CDMA) systems, operating in lognormally shadowed and Rician faded microcellular mobile radio channels. The influence of various system parameters on the BER performance, such as the Rice K factor, shadowing spread, and the number of interferers, is analyzed and discussed

Keywords

Rician channels; code division multiple access; error statistics; log normal distribution; microcellular radio; probability; radiofrequency interference; spread spectrum communication; BER performance; DS-CDMA systems; Rice K factor; Rician faded microcellular mobile radio channels; Rician interferers; SIR performance; bit error rate; cumulative distribution function; direct sequence code division multiple access systems; lognormally shadowed Rician channels; number of interferers; probability density function; shadowing spread; signal to interference ratio; system parameters; Bit error rate; Interference; Land mobile radio; Multiaccess communication; Probability density function; Random variables; Rayleigh channels; Rician channels; Shadow mapping; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on

Conference_Location

Sun City

Print_ISBN

0-7803-4281-X

Type

conf

DOI

10.1109/ISSSTA.1998.723820

Filename

723820