BER Comparison of DS-CDMA and MC-CDMAC for Frequency Selective Fading Channels

This paper presents the advantages and disadvantages of DS-CDMA (Direct Sequence-Code Division Multiple Access) and MC-CDMA (Multi-Carrier-Code Division Multiple Access) systems in synchronous down-link mobile radio communication channels. Furthermore, the bit error rate (BER) performance is analyzed in frequency selective slow Rayleigh fading channels. We theoretically derive the BER lower bound for MC-CDMA system, and propose a simple multi-user detection method. In the BER analysis, we use the same multipath delay profiles for both DS-CDMA and MC-CDMA systems, and discuss the performance theoretically and by computer simulation. Finally, we theoretically prove that the time domain DS-CDMA Rake receiver is equivalent to the frequency domain MC-CDMA Rake receiver for the case of one user.

[1]  Hikmet Sari,et al.  An analysis of orthogonal frequency-division multiplexing for mobile radio applications , 1994, Proceedings of IEEE Vehicular Technology Conference (VTC).

[2]  Nathan Yee,et al.  Wiener filtering of multi-carrier CDMA in Rayleigh fading channel , 1994, 5th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Wireless Networks - Catching the Mobile Future..

[3]  K. Fazel,et al.  On the Performance of Convolutionally-Coded CDMA/OFDM for Mobile Communication System , 1993 .

[4]  M. Pursley,et al.  Performance Evaluation for Phase-Coded Spread-Spectrum Multiple-Access Communication - Part I: System Analysis , 1977, IEEE Transactions on Communications.

[5]  Minoru Okada,et al.  Transmission performance analysis of Multi-Carrier Modulation in frequency selective fast Rayleigh fading channel , 1995, Wirel. Pers. Commun..

[6]  P. Monsen.  Digital Transmission Performance on Fading Dispersive Diversity Channels , 1973, IEEE Trans. Commun..

[7]  Jean-Paul M. G. Linnartz,et al.  Multi-Carrier Cdma In Indoor Wireless Radio Networks , 1994 .

[8]  John G. Proakis,et al.  Digital Communications , 1983 .

[9]  K. Fazel.  Performance of CDMA/OFDM for mobile communication system , 1993, Proceedings of 2nd IEEE International Conference on Universal Personal Communications.

[10]  Jean-Paul M. G. Linnartz,et al.  Controlled equalization of multi-carrier CDMA in an indoor Rician fading channel , 1994, Proceedings of IEEE Vehicular Technology Conference (VTC).

[11]  Y. Bar-Ness,et al.  Synchronous multi-user multi-carrier CDMA communication system with decorrelating interference canceler , 1994, 5th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Wireless Networks - Catching the Mobile Future..