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MIMO-BICM Iterative Receiver With the EM Based Channel Estimation and Simplified MMSE Combining With Soft Cancellation

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1 Author(s)
J. Choi ; Inst. of Adv. Telecommun., Univ. of Wales, Swansea

For multiple-input multiple-output (MIMO) bit-interleaved coded modulation (BICM) systems over block fading channels, a computationally efficient iterative receiver is investigated with the expectation-maximization (EM)-based MIMO channel estimation. Replacing a joint detector and decoder by an iterative detector and decoder, the resulting receiver becomes a doubly iterative receiver. To reduce the complexity of the MIMO detection, a simplified minimum mean-square error (MMSE) combining with soft (interference) cancellation (SC) is considered. The relation to the MMSE decision feedback detector (DFD) is also addressed

Published in:

IEEE Transactions on Signal Processing  (Volume:54 ,  Issue: 8 )