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

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1 Author(s)
Lok, T.M. ; Dept. of Information Eng., Chinese Univ. of Hong Kong, China

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.

Published in:

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  (Volume:1 )

Date of Conference:

15-18 Dec. 2003