Performance comparison of alternative wideband CDMA systems

This paper compares the forward link performance of a direct spread CDMA system with a spreading bandwidth of 3.6864 MHz and a multicarrier system consisting of 3 carriers each with spreading bandwidth of 1.2288 MHz. These systems are under consideration for the forward link of the next generation CDMA cellular/PCS systems. This paper summarizes performance comparison results of the two systems for a data rate of 9.6 kbps with the IMT-2000 vehicular and pedestrian channel models. Performance results are given for speeds of 3 and 30 km/h. The results indicate that the two systems have comparable performance for the above data rate and the IMT-2000 channel models.

[1]  Fumiyuki Adachi,et al.  COHERENT MULTICODE DS-CDMA MOBILE RADIO ACCESS , 1996 .

[2]  Uwe-Carsten Fiebig,et al.  Design study for a CDMA-based third-generation mobile radio system , 1994, IEEE J. Sel. Areas Commun..

[3]  A. Viterbi.  CDMA: Principles of Spread Spectrum Communication , 1995 .

[4]  Ashvin Chheda,et al.  Performance of fast forward link power control for CDMA systems , 1998, VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151).

[5]  A. Jalali,et al.  Performance comparison of direct spread and multicarrier CDMA systems , 1998, VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151).

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

[7]  Gordon L. Stuber,et al.  Principles of Mobile Communication , 1996 .

[8]  Yukihiko Okumura,et al.  Experiments on coherent multicode DS-CDMA , 1996, Proceedings of Vehicular Technology Conference - VTC.

[9]  Ramjee Prasad,et al.  Overview of multicarrier CDMA , 1997, IEEE Commun. Mag..

[10]  Mamoru Sawahashi,et al.  Wideband coherent DS-CDMA , 1995, 1995 IEEE 45th Vehicular Technology Conference. Countdown to the Wireless Twenty-First Century.

[11]  Andrew J. Viterbi,et al.  On the capacity of a cellular CDMA system , 1991 .