Nested Maximum Likelihood Group Detection in Generalized Spatial Modulation MIMO Systems

This letter presents a new detection scheme for the generalized spatial modulation MIMO system. The strategy is based on the successive use of maximum likelihood detectors, applied in a nested fashion, to variable-length partitions of the post-equalization received signal. The choice of the antenna...

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Bibliographic Details
Published in:IEEE communications letters 2014-06, Vol.18 (6), p.953-956
Main Authors: Cal-Braz, Joao, Sampaio-Neto, Raimundo
Format: Article
Language:English
Subjects:
Antennas
Applied sciences
Complexity theory
Correlation
Detection, estimation, filtering, equalization, prediction
Detectors
Equipments and installations
Exact sciences and technology
Information, signal and communications theory
Mobile radiocommunication systems
Modulation
Modulation, demodulation
Radiocommunications
Signal and communications theory
Signal to noise ratio
Signal, noise
Telecommunications
Telecommunications and information theory
Transmitting antennas
Vectors
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Summary:This letter presents a new detection scheme for the generalized spatial modulation MIMO system. The strategy is based on the successive use of maximum likelihood detectors, applied in a nested fashion, to variable-length partitions of the post-equalization received signal. The choice of the antenna combination mapping, named spatial constellation, as well as the detection ordering strategy are key design factors to the implementation of the high-performance and low-complexity detector. Simulation results show the substantial performance advantage of the proposed detector compared with current suboptimal receivers.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2014.2323252