Threshold List Subset Detector For Turbo MIMO Systems

Conference: European Wireless 2009 - 15th European Wireless Conference
05/17/2009 - 05/20/2009 at Aalborg, Denmark

Proceedings: European Wireless 2009

Pages: 6Language: englishTyp: PDF

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Nammi, SaiRamesh (Klipsch School of Electrical & Computer Engineering, New Mexico State University, Las Cruces, NM, USA 88003)

A threshold based list detector is presented for multiple-input multiple-output (MIMO) system. The detector is based on subset-sum algorithm. The algorithm make use of a low complexity sub optimal minimum mean square error (MMSE) detector to find the bit reliabilities, and uses these reliabilities to generate list of possible candidate data vectors. It is shown through analysis that this detector can be designed to ensure a specific bit error performance with respect to the optimum maximum likelihood detector. The proposed threshold list subset sum detector (T-LSS) is extended for coded turbo MIMO transmission. Unlike other detectors proposed in the literature, the T-LSS detector generates list for each outer iteration.