Signal detection method for MIMO communication system...

Details Signal detection method for MIMO communication system... Signal detection method for MIMO communication system...

2006-08-21

2010-06-29

Deppe, Betsy L (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S341000

Reexamination Certificate

active

07746950

ABSTRACT:
Disclosed is a signal detection method for a receiver of a Multiple-Input Multiple-Output (MIMO) communication system having nTand nR(where nRis greater than or equal to nT) transmission and reception antennas, respectively, and an nT×nRchannel matrix. The signal detection method includes selecting a plurality of sub-channel matrices having smaller dimensions than the nT×nRchannel matrix, estimating transmission symbols received from corresponding transmission antennas using a maximum likelihood decoding method with respect to a received signal corresponding to each of the sub-channel matrices, estimating transmission symbols received from the remaining transmission antenna(s) using the estimated transmission symbols, temporarily storing a candidate symbol set composed of the estimated transmission symbols, and comparing candidate symbol sets corresponding to all the sub-channel matrices and determining the smallest candidate symbol set as a transmission symbol set.

REFERENCES:
patent: 7489746 (2009-02-01), Awater et al.
patent: 2005/0249302 (2005-11-01), Leshem et al.
patent: 1 460 813 (2004-09-01), None
patent: 1020050046306 (2005-05-01), None
Takayuki Fukatani et al, Two Methods for Decreasing the Computational Complexity of the MIMO ML Decoder, Oct. 2004.
Lei He et al, Reduced Complexity Maximum Likelihood Detection for V-Blast Systems, 2003.

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