Performance Comparison of Differential and Non-Differential Synchronous Downlink MC-CDMA Systems with Random Spreading

Author

El-Nasr, M. Abou ; Mangoud, M.A. ; Shaban, H.A.

Author_Institution

Dept. of Electron. & Commun., Arab Acad. for Sci. & Technol., Alexandria

fYear

2007

fDate

21-25 Sept. 2007

Firstpage

906

Lastpage

909

Abstract

The BER performances of differential and non- differential synchronous downlink multi-carrier code division multiple access (MC-CDMA) systems that employ random spreading are studied and compared using Standard Gaussian Approximation (SGA) in AWGN channel. Furthermore, Monte-Carlo simulations were carried out to compare the BER performances of these systems in AWGN and in frequency selective Rayleigh fading channels considering a various number of interferers in the system. Various modulation schemes were considered namely, BPSK, QPSK, OQPSK, DBPSK, and DQPSK modulation schemes.

Keywords

AWGN channels; Monte Carlo methods; Rayleigh channels; code division multiple access; error statistics; AWGN; AWGN channel; BER; Monte-Carlo simulations; SGA; Standard Gaussian Approximation; additive white Gaussian noise channels; bit error rate; frequency selective Rayleigh fading channels; multicarrier code division multiple access systems; synchronous downlink MC-CDMA systems; AWGN channels; Binary phase shift keying; Bit error rate; Code standards; Downlink; Fading; Frequency; Gaussian approximation; Multicarrier code division multiple access; Quadrature phase shift keying;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1311-9

Type

conf

DOI

10.1109/WICOM.2007.233

Filename

4340008