High Performance Fixed Effort MIMO Detector

Conference: SCC'10 - 8th International ITG Conference on Source and Channel Coding
01/18/2010 - 01/21/2010 at Siegen, Germany

Proceedings: SCC'10

Pages: 6Language: englishTyp: PDF

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Chouayakh, Mohamed; Knopp, Andreas; Lankl, Berthold (Institute for Communications Engineering, Munich University of the Bundeswehr, 85579 Neubiberg, Germany)

A reduced search sphere decoder (RS-SD) for multiple input multiple output (MIMO) systems is proposed. Contrarily to the sphere decoder (SD), where the maximum likelihood (ML) solution is achieved with a variable complexity, the RS-SD algorithm will be performed over a fixed number of candidates, determined according to pre-computed search probabilities. Due to the intelligent candidate selection strategy, the RS-SD shows a performance close to the SD and a superior performance compared to some commonly used fixed effort sphere decoders, resulting in an efficient use of the hardware resources.