FIELD: information technology.
SUBSTANCE: in one version, a receiver R receives streams of symbols for M data streams, performs reception spatial processing over the received symbols to obtain detected symbols, calculates log-likelihood ratios (LLR) independently for each of D best data streams and calculates LLR jointly for M-D remaining data streams, where M>D ≥1 and M>1. The D best data streams may be selected based on the signal-to-noise ratio and/or other criteria. In another version, the receiver calculates LLR independently for each of the D best data streams, calculates LLR jointly for the M-D remaining data strams and cuts the number of considered hypotheses for joint calculation of LLR by searching for suitable hypotheses by using detection of the sphere of the list, Monte-Carlo method using Markov chains or some other search method.
EFFECT: low-complexity detection and decoding while ensuring high efficiency.
48 cl, 9 dwg, 2 tbl
