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Space-time coding with receive combiner bank for multiple-input-multiple-output system under multi-user cochannel interference

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1 Author(s)
Jui Teng Wang ; Grad. Inst. of Commun. Eng., Nat. Chi Nan Univ., Nantou, Taiwan

Space-time coding with receive combiner bank (STC-RCB), in which a bank of receive combiners is added before the space-time decoder for interference-plus-noise suppression, is proposed. Without loss of generality, the author consider space-time block code (STBC) to be the representative of STC and study the performance for (STBC-RCB). The author derive the output signal to interference-plus-noise ratio (SINR) (of the space-time decoder) for STBC-RCB under multi-user cochannel interference. By regarding STBC as a special case of STBC-RCB, the author also derive the output SINR for STBC under multi-user cochannel interference. Simulation results show that the output SINR of STBC-RCB can be much larger than that of STBC, also, they show that STBC-RCB can adopt the appropriate receive combining strategy in the RCB to further improve the performance.

Published in:

Communications, IET  (Volume:7 ,  Issue: 2 )