| 摘要 |
PROBLEM TO BE SOLVED: To detect a signal with low complexity, while securing performance, in a communication system that includes a multiplex input and output antenna. SOLUTION: The method includes a stage of presuming a channel matrix for received signals from among a plurality of receive antennas; a stage of creating at least one channel matrix group by aligning the channel matrix and creating at least one transmission signal group, by aligning transmission signals to be presumed to correspond to the channel matrix group; a stage of determining a first possible vector considering all the constellation points for a first layer of the transmission signal group; a stage of determining a second possible vector, taking into consideration all the constellation points for a second layer of the transmission signal group; a stage of generating a final possible vector including the first and the second possible vectors; and a stage of calculating a soft decision value by using the final candidate vector. COPYRIGHT: (C)2011,JPO&INPIT
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