Turbo Detection for MIMO Systems Using a List-Sequential Detector: Improved Soft Output by Path Augmentation
نویسنده
چکیده
Bit-interleaved coded modulation with iterative detection for MIMO systems demands an efficient APP detector that delivers soft information about the coded bits. The list-sequential detector is a reduced-complexity approximation to an exhaustive APP detector. It uses a tree search employing the stack algorithm to find dominant terms of the log-likelihood ratio (LLR). We show how incomplete tree paths have to be augmented to improve LLR reliability.
منابع مشابه
A List Based Detection Technique for MIMO Systems 15
It is well known that multiple transmit and receive antennas can significantly increase the data carrying capacity of wireless systems (1) (3). Usually a multiple-input multiple-output (MIMO) system requires a channel code to approach capacity (4). However, for such MIMO systems, the optimal joint maximum-likelihood (ML) detection using exhaustive search is too complex and is almost impossible....
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