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Design of MAI-free MC-CDMA systems over frequency-selective fading channels via codeword selection

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3 Author(s)
Shang-Ho Tsai ; Dept. of Electr. Eng., Univ. of Southern California, CA, USA ; Yuan-Pei Lin ; Kuo, C.-C.J.

A scheme to eliminate completely the multiaccess interference (MAI) of the multicarrier code division multiple access (MC-CDMA) system in a frequency-selective fading environment using codeword selection is proposed. We show that, if the CDMA codewords are chosen to be a proper subset of the Hadamard-Walsh codes, the MC-CDMA system can be MAI-free so that the implementational complexity of the transceiver can be greatly reduced. This MAI-free property is analyzed theoretically and demonstrated via simulation results.

Published in:

Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on  (Volume:3 )

Date of Conference:

18-23 March 2005