Low complexity turbo equalization for high data rate wireless communications
EURASIP Journal on Wireless Communications and Networking
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EURASIP Journal on Wireless Communications and Networking
Multilayer space-time error correcting codes
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
ASIP-based flexible MMSE-IC linear equalizer for MIMO turbo-equalization applications
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EURASIP Journal on Wireless Communications and Networking
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This paper deals with a low complexity receiver scheme where equalization and channel decoding are jointly optimized in an iterative process. We derive the theoretical transfer function of the infinite length linear minimum mean square error (MMSE) equalizer with a priori information. A practical implementation is exposed which employs the fast Fourier transform (FFT) to compute the equalizer coefficients, resulting in a low-complexity receiver structure. The performance of the proposed scheme is investigated for the enhanced general packet radio service (EGPRS) radio link. Simulation results show that significant power gains may be achieved with only a few (3-4) iterations. These results demonstrate that MMSE turbo equalization is an attractive candidate for single-carrier broadband wireless transmissions in long delay-spread environments.