Title :
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
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 LI 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;
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
DOI :
10.1109/ISSSTA.1998.723820
