Title :
Constellation mapping for space-time matrix modulation with iterative demodulation/decoding
Author :
Li, Yabo ; Xia, Xiang-Gen
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Delaware, Newark, DE, USA
fDate :
5/1/2005 12:00:00 AM
Abstract :
The mapping from binary sequences to space-time matrices is an important issue in designing space-time coded multiple-antenna systems where different mapping schemes may lead to different bit-error-rate (BER) performance. In this letter, we use a binary switching algorithm to investigate the mappings of bit-interleaved coded modulation with iterative demodulation/decoding (BICM-ID) for space-time modulation. Both coherent and noncoherent space-time modulation in the cases of no a priori information and perfect a priori information of the coded bits for the demodulator are considered.
Keywords :
antenna arrays; binary sequences; demodulation; error statistics; interleaved codes; iterative decoding; matrix algebra; modulation coding; optimisation; space-time codes; BER performance; a priori information; binary sequence; binary switching algorithm; bit-error-rate; bit-interleaved coded modulation; coherent space-time modulation; constellation mapping; iterative decoding; iterative demodulation; space-time coded multiple-antenna system; space-time matrix modulation; Binary sequences; Bit error rate; Demodulation; Interleaved codes; Iterative algorithms; Iterative decoding; Labeling; Modulation coding; Performance gain; Signal to noise ratio; Bit-interleaved coded modulation (BICM); constellation labeling; iterative demodulation/decoding; space–time coding;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2005.847163
