Optimal uplink sequence assignment for multicarrier CDMA systems in Rayleigh fading channels

Author

Lok, Tat M.

Author_Institution

Dept. of Information Eng., Chinese Univ. of Hong Kong, China

Volume

1

fYear

2003

fDate

15-18 Dec. 2003

Firstpage

636

Abstract

We investigate sequence assignment on the uplink for multicarrier (MC) CDMA systems. In a fading channel, a user may experience different performance with different assigned sequences. Moreover, since different users experience different fading characteristics, careful assignment may yield improved performance for the whole system. We utilize the channel characteristics, and determine the optimal assignment that minimizes the total power for the system. Simulations show that major improvements can be obtained through suitable sequence design and optimal assignment.

Keywords

Rayleigh channels; cellular radio; code division multiple access; quality of service; radio links; sequences; Rayleigh fading channels; code division multiple access; multicarrier CDMA systems; optimal uplink sequence assignment; AWGN; Additive white noise; Base stations; Fading; Frequency; Multiaccess communication; Narrowband; Power system modeling; Quality of service; Rayleigh channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on

Print_ISBN

0-7803-8185-8

Type

conf

DOI

10.1109/ICICS.2003.1292531

Filename

1292531