Title :
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
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;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.233
