A Dominance-Based Soft-Input Soft-Output MIMO Detector With Near-Optimal Performance

作者：Papa Giuseppe^*; Ciuonzo Domenico; Romano Gianmarco; Rossi Pierluigi Salvo

来源：IEEE Transactions on Communications, 2014, 62(12): 4320-4335.

DOI：10.1109/TCOMM.2014.2367013

• Iterative detection-and-decoding system (IDDS)
• max-log
• multi-input multi-output (MIMO)
• soft-input soft-output (SISO) detection
• tree-search

Iterative detection-and-decoding for multi-input multi-output (MIMO) communication systems require a soft-input soft-output (SISO) detection algorithm, which, in the optimal formulation, is well known to be exponentially complex in the number of transmitting antennas. This paper presents a novel SISO detector for MIMO systems, named SISO king decoder. It is a tree-search branch-and-bound algorithm, which exploits the properties of the channel matrix and the a-priori information on the transmitted bits to reduce the overall computational complexity. The proposed algorithm is compared with the SISO single tree-search sphere decoder [1]. Simulation results are provided to show the complexity reduction without relevant performance loss in terms of bit-error rate.

• 出版日期2014-12