Lattice Reduction Aided Probability Data Association Detector for MIMO Systems

The performance of symbol detection in multiple-input multiple-output (MIMO) systems is largely determined by the achievable diversity order. The inter antenna interference (IAI), however, can limit detectors' ability to take full advantage of diversity. This occurs because off-diagonal channel...

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Bibliographic Details
Published in:IEEE communications letters 2022-10, Vol.26 (10), p.2375-2379
Main Authors: de Souza, Pedro H. C., Mendes, Luciano L.
Format: Article
Language:English
Subjects:
Detectors
diversity
IAI
lattice
Lattices
MIMO
MIMO communication
OFDM
Orthogonality
PDA
Receiving antennas
Reduction
Symbols
Transmitting antennas
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Summary:The performance of symbol detection in multiple-input multiple-output (MIMO) systems is largely determined by the achievable diversity order. The inter antenna interference (IAI), however, can limit detectors' ability to take full advantage of diversity. This occurs because off-diagonal channel coefficients of the MIMO channel matrix are not mutually orthogonal. Nevertheless, this can be mitigated with the aid of lattice reduction (LR), which aims to increase the orthogonality among these coefficients. We propose a LR aided probability data association (PDA) detector that achieves a similar diversity order to that of the optimum detector but with significant less computational complexity.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2022.3190722