Title :
Effect of MAI and Frequency Offset on the Performance of Coded MC-CDMA Synchronous Downlink Systems with MSK Modulation
Author :
El-Nasr, M. Abou ; Shaban, Heba A. ; Mangoud, M.A.
Author_Institution :
AAST, Alexandria
Abstract :
Effects of multiple access interference (MAI) and frequency offset on bit error rate (BER) performance of synchronous coded minimum shift keying/multi-carrier code division multiple access (MSK/MC-CDMA) systems were considered using standard Gaussian approximation (SGA). Simulations were carried out in AWGN and frequency selective Rayleigh fading channels. Results showed that the un-coded MSK/MC-CDMA system under investigation outperforms the corresponding system with BPSK modulation. Furthermore, coded MSK/MC-CDMA can achieve a better performance than the theoretical performance in AWGN channel for a single user, even in the presence of MAI.
Keywords :
AWGN channels; Rayleigh channels; code division multiple access; error statistics; interference (signal); minimum shift keying; AWGN channel; BPSK modulation; MSK modulation; bit error rate performance; coded MC-CDMA synchronous downlink systems; frequency offset; frequency selective Rayleigh fading channels; multicarrier code division multiple access; multiple access interference; standard Gaussian approximation; synchronous coded minimum shift keying; AWGN; Bit error rate; Code standards; Downlink; Frequency conversion; Frequency shift keying; Gaussian approximation; Modulation coding; Multicarrier code division multiple access; Multiple access interference;
Conference_Titel :
Wireless Communication Systems, 2007. ISWCS 2007. 4th International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
978-1-4244-0979-2
Electronic_ISBN :
978-1-4244-0979-2
DOI :
10.1109/ISWCS.2007.4392388
