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

fYear

2007

fDate

12-15 Feb. 2007

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISSPA.2007.4555545

Filename

4555545