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SYSTEM AND METHOD FOR DETECTING SPATIALLY MULTIPLEXED AND SPACE TIME BLOCK CODED MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) SIGNALS
SYSTEM AND METHOD FOR DETECTING SPATIALLY MULTIPLEXED AND SPACE TIME BLOCK CODED MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) SIGNALS
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机译:用于检测空间多路复用和空间时间块编码的多输入多输出(MIMO)信号的系统和方法
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摘要
A system and method for detecting Spatially Multiplexed (SM), Space Time Block Coded (STBC), or Hybrid Space Time Block Coded-Spatially Multiplexed (STBC-SM) Multiple-Input Multiple-Output (MIMO) signals is disclosed. QR decomposition of the MIMO signal is performed. A constellation of symbols present in the MIMO signals is partitioned into subsets of symbols, using a set partitioning technique. A-posteriori probability (APP) of each branch is determined. Log Likelihood Ratios (LLRs) corresponding to the transmitted bits are determined using the a-posteriori probabilities. Successively, transmitted bits are determined by providing the LLRs corresponding to the transmitted bits, to a Viterbi decoder.
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