Projection-Based List Detection in Generalized Spatial Modulation MIMO Systems

This letter presents a novel detection strategy for Spatially-Multiplexed Generalized Spatial Modulation systems. It is a multi-stage detection that produces a list of candidates of the transmitted signal vector, sorted according to the proximity of the data vector to one of the possible vector subs...

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Bibliographic Details
Published in:IEEE communications letters 2015-07, Vol.19 (7), p.1145-1148
Main Authors: Cal-Braz, Joao, Sampaio-Neto, Raimundo
Format: Article
Language:English
Subjects:
Bit error rate
Detectors
Generalized Spatial Moduation
List Detection
Measurement
MIMO systems
Phase shift keying
Signal to noise ratio
Transmitting antennas
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Summary:This letter presents a novel detection strategy for Spatially-Multiplexed Generalized Spatial Modulation systems. It is a multi-stage detection that produces a list of candidates of the transmitted signal vector, sorted according to the proximity of the data vector to one of the possible vector subspaces. The quality metric and list-length metric selects the best candidate and manages the list length, respectively. Performance results show that the proposed strategy significantly reduces the performance gap to the optimal maximum likelihood detector, while maintaining significant computational cost reduction.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2015.2435007