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Subspace based blind multiuser detection asynchronous MC-CDMA systems

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1 Author(s)
Lili Lin ; Coll. of Inf. & Electron. Eng., Zhejiang GongShang Univ., Hangzhou, China

Firstly, this paper extends the subspace based intersymbol decorrelating (IS-DEC) detector for code division multiple access (CDMA) system to multicarrier CDMA (MC-CDMA) system. Secondly, a modified projection approximation subspace tracking deflation (M-PASTd) algorithm is proposed and developed elaborately. Then, the M-PASTd algorithm is applied to the blind adaptive implementation of IS-DEC detector for uplink of MC-CDMA systems. Simulation results show that the IS-DEC detector implemented by M-PASTd has good similarity with the optimal decorrelating detector, and provides better bit error rate (BER) performance.

Published in:

Proceedings. 2005 International Conference on Wireless Communications, Networking and Mobile Computing, 2005.  (Volume:1 )

Date of Conference:

23-26 Sept. 2005