A reduced dimension VBLAST detection algorithm with approximating maximum Likelihood performance

Authors:
Wenchi Cheng;Hailin Zhang
Affiliations:
State Key Lab of ISN, Xidian University, Xi'an, China;State Key Lab of ISN, Xidian University, Xi'an, China
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

Citing 2
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Space-Time Codes and MIMO Systems

Space-Time Codes and MIMO Systems
An efficient square-root algorithm for BLAST

ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 02

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Abstract

In MIMO system, spatial multiplexing(SM) technology indicates the essence of improving the capacity. BLAST is the typical representation of SM, especially VBLAST, which has some detection algorithm such as ML, ZF-DFE, MMSE-DFE and ML-DFE, etc. By considering the correlation of channel matrix, this paper proposed a new algorithm--HPML, which approaches maximum likelihood (ML) performance with lower complexity, and with its reduced algorithm--VML. Theory analysis and simulation results show that HPML and VML can approach ML performance and decrease complexity efficiently at the same time.