Title :
Performance Analysis of Band-Limited Generalized Multicarrier CDMA Systems
Author :
Smida, Besma ; Affes, Sofiène
Author_Institution :
INRS-EMT, Univ. du Quebec, Montreal, QC
Abstract :
In this paper, we extend the investigation of the generalized MC-CDMA system by considering a practical band- limited chip waveform, namely, a square-root raised cosine waveform. The analysis is based on the standard Gaussian approximation. The effects of the chip waveform and the spacing between two adjacent subcarriers on the interference level and on the average BER have been evaluated. The results show that for a given subcarrier spacing between two adjacent subcarriers, there exists a corresponding best choice of the chip waveform. In addition, they suggest that MT-CDMA has the optimum spacing between subcarriers and achieves the best BER performance.
Keywords :
Gaussian processes; bandlimited communication; code division multiple access; error statistics; average BER; bandlimited chip waveform; generalized multicarrier CDMA system; performance analysis; square-root raised cosine waveform; standard Gaussian approximation; subcarrier spacing; Bandwidth; Bit error rate; Filtering; Gaussian approximation; Intersymbol interference; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference; Performance analysis; Time domain analysis;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.149
