Patent ID: 8503584
Filing Date: 2013-08-06
Classification: H04L

Abstract:
1. A method of detecting received data in a communication system comprising a processor, the method comprising the steps of: performing, by the processor, a QR decomposition on a received input vector as a function of one or more characteristics of a communication channel over which the input vector was transmitted; generating, by the processor, a subset of best symbol candidates including a plurality of sure symbols and a plurality of ambiguity symbols from a symbol constellation by comparing an input sample with one or more prescribed thresholds, the input sample corresponding to an element of the received input vector after QR decomposition; identifying, by the processor, at least one symbol satisfying prescribed minimum Euclidian distance criteria among the plurality of ambiguity symbols in the subset of best symbol candidates; and generating, by the processor, a subset of best symbols, the subset of best symbols including a prescribed number of symbols from the symbol constellation determined to be closest to the input sample from among the plurality of sure symbols and the at least one symbol satisfying prescribed minimum Euclidian distance criteria, the subset of best symbols being used in a subsequent iteration of (i) generating the subset of best symbol candidates and (ii) identifying the at least one symbol satisfying the prescribed minimum Euclidian distance criteria.