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Constrained MMSE receivers for CDMA systems in frequency-selective fading channels

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5 Author(s)
Seung-Chul Hong ; Samsung Electron. Co. Ltd., Kyunggido, South Korea ; Jinho Choi ; Young-Ho Jung ; Seong Rag Kim
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A constrained minimum mean square error (CMMSE)-RAKE receiver for multipath fading channels is developed by extending the CMMSE receiver for flat fading channels. Based on the observation that interpath interference causes a bias of the channel estimator in , a receiver that can remove such a bias is proposed, plus a closed-form expression of the bit-error rate of the receiver is derived. Computer simulation is used to demonstrate that the proposed receiver can outperform existing RAKE receivers.

Published in:

IEEE Transactions on Wireless Communications  (Volume:3 ,  Issue: 5 )