Title :
Performance analysis of coherent DS/CDMA systems with antenna diversity in Rayleigh fading channels
Author :
Hwang, Keun Chul ; Lee, Kwang Bok
fDate :
6/23/1905 12:00:00 AM
Abstract :
We investigate the performance of coherent direct-sequence code division multiple access (DS/CDMA) systems with antenna diversity in Rayleigh fading channels. For a DS/CDMA system operated in fading channels, the multiple access interference (MAI) is affected by fading. We determine the distribution of multiple access interference (MAI) in Rayleigh fading channels. Two simple approximation methods for MAI distribution are proposed, and compared with the exact MAI distribution. Using the exact and approximated MAI distributions, we evaluate the bit error probability (BEP) expression for coherent DS/CDMA systems with antenna diversity. Moreover, the BEP accuracy of the standard Gaussian approximation is investigated as the number of users, processing gain, and the number of antennas are varied
Keywords :
Rayleigh channels; approximation theory; code division multiple access; diversity reception; error statistics; multiuser channels; radiofrequency interference; spread spectrum communication; Gaussian approximation; Rayleigh fading channels; antenna diversity; approximated MAI distribution; approximation methods; bit error probability; coherent DS/CDMA systems; direct-sequence code division multiple access; exact MAI distribution; multiple access interference; performance analysis; processing gain; Approximation methods; Binary phase shift keying; Error probability; Fading; Frequency; Gaussian approximation; Multiaccess communication; Multiple access interference; Performance analysis; Rayleigh channels;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956452
