Title :
Analysis of multiple access interference in synchronous downlink CDMA systems with random signature sequences in AWGN and fading environments
Author :
Moinuddin, M. ; Deriche, M. ; Sheikh, A.U.H. ; Zerguine, A.
Author_Institution :
Dept. of Electr. Eng., King Fahd Univ. of Pet. & Miner., Dhahran
Abstract :
In this work, exact analysis of the multiple access interference (MAI) for synchronous downlink CDMA systems is carried out for BPSK signals with random signature sequences in both additive white Gaussian (AWGN) noise and different fading environments, namely Nakagami and Rician. Two different scenarios are considered: one with equal transmitted powers while the other considers the case of unequal transmitted power. For both cases, the exact probability density function (pdf) of MAI plus noise is derived. Finally, a number of simulation results are presented to verify our theoretical derivations.
Keywords :
AWGN channels; Rician channels; code division multiple access; interference (signal); phase shift keying; probability; AWGN environment; BPSK signals; Nakagami fading; Rician fading; additive white Gaussian noise; binary phase shift keying; code division multiple access; fading environment; multiple access interference; probability density function; random signature sequences; synchronous downlink CDMA systems; AWGN; Additive white noise; Binary phase shift keying; Downlink; Fading; Gaussian noise; Multiaccess communication; Multiple access interference; Signal analysis; Working environment noise;
Conference_Titel :
Signal Processing and Its Applications, 2007. ISSPA 2007. 9th International Symposium on
Conference_Location :
Sharjah
Print_ISBN :
978-1-4244-0778-1
Electronic_ISBN :
978-1-4244-1779-8
DOI :
10.1109/ISSPA.2007.4555545
