Iterative Soft-In Soft-Out Sphere Detection for MIMO Systems

  title={Iterative Soft-In Soft-Out Sphere Detection for MIMO Systems},
  author={Bj{\"o}rn Mennenga and Richard Fritzsche and Gerhard P. Fettweis},
  journal={VTC Spring 2009 - IEEE 69th Vehicular Technology Conference},
Soft-Input Soft-Output (SISO) tree search algorithms provide a promising approach for complexity reduced iterative MIMO detection. Realizations based on depth-first search enable near max-log optimal detection at reduced but still high complexity. In this paper we introduce how SISO sphere detectors based on enhancements of single tree search and tuple search algorithms can be efficiently used in iterative detection, outclassing previously proposed decoders or list based iterations. The… CONTINUE READING
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