Signal Space Diversity in Single and Multiuser Scenarios Employing Sphere Decoder Detector

The matrix structure of the received signals of a system employing signal space diversity and antenna array is obtained for both single and multiuser scenarios. With this structure, we are able to implement a sphere decoder detector at the receiver. Also, as a complement of the approach of Boutros a...

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Bibliographic Details
Published in:IEEE communications letters 2018-04, Vol.22 (4), p.868-871
Main Authors: Carvajal, Henry M., Orozco, Nathaly G., de Almeida, Celso
Format: Article
Language:English
Subjects:
Antenna arrays
Bit error rate
Complexity theory
Detectors
multiuser detection
Receiving antennas
Signal space diversity
sphere decoder
Upper bound
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Summary:The matrix structure of the received signals of a system employing signal space diversity and antenna array is obtained for both single and multiuser scenarios. With this structure, we are able to implement a sphere decoder detector at the receiver. Also, as a complement of the approach of Boutros and Viterbo, an exact closed-form expression to calculate the pairwise-error-probability between two symbol vectors for the single user scenario is obtained. Then, a highly accurate bit error rate upper bound is derived for this scenario. Finally, the asymptotic analysis of this upper bound expression is performed.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2018.2797276