Title :
Silicon implementation of an MMSE-based soft demapper for MIMO-BICM
Author :
Haene, S. ; Burg, A. ; Perels, D. ; Luethi, P. ; Felber, N. ; Fichtner, W.
Author_Institution :
Lab. of Integrated Syst., ETH Zurich
Abstract :
The performance of systems employing bit-interleaved coded modulation (BICM) critically depends on the availability of soft information. In the multi-antenna case, the extraction of optimum bit-metrics becomes prohibitively complex, so that suboptimal solutions need to be adopted for practical implementation. Instead of considering all the spatially multiplexed streams jointly, the implementation presented in this paper computes the soft information on each data stream separately, based on the output of an MMSE equalizer
Keywords :
MIMO systems; channel estimation; equalisers; least mean squares methods; modulation coding; BICM; MIMO-BICM; MMSE equalizer; bit-interleaved coded modulation; multiantenna; optimum bit-metrics; silicon implementation; soft demapper; soft information; Availability; Bit error rate; Convolutional codes; Decoding; MIMO; Modulation coding; OFDM modulation; Silicon; Transmitters; Viterbi algorithm;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693155
