Improved QRD-M Detection Algorithm for Generalized Spatial Modulation Scheme
Joint Authors
Jing, Xiaorong
Wang, Mingyue
Zhou, Wei
Liu, Hongqing
Source
International Journal of Antennas and Propagation
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-01-16
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Generalized spatial modulation (GSM) is a spectral and energy efficient multiple-input multiple-output (MIMO) transmission scheme.
It will lead to imperfect detection performance with relatively high computational complexity by directly applying the original QR-decomposition with M algorithm (QRD-M) to the GSM scheme.
In this paper an improved QRD-M algorithm is proposed for GSM signal detection, which achieves near-optimal performance but with relatively low complexity.
Based on the QRD, the improved algorithm firstly transforms the maximum likelihood (ML) detection of the GSM signals into searching an inverted tree structure.
Then, in the searching process of the M branches, the branches corresponding to the illegitimate transmit antenna combinations (TACs) and related to invalid number of active antennas are cut in order to improve the validity of the resultant branches at each level by taking advantage of characteristics of GSM signals.
Simulation results show that the improved QRD-M detection algorithm provides similar performance to maximum likelihood (ML) with the reduced computational complexity compared to the original QRD-M algorithm, and the optimal value of parameter M of the improved QRD-M algorithm for detection of the GSM scheme is equal to modulation order plus one.
American Psychological Association (APA)
Jing, Xiaorong& Wang, Mingyue& Zhou, Wei& Liu, Hongqing. 2017. Improved QRD-M Detection Algorithm for Generalized Spatial Modulation Scheme. International Journal of Antennas and Propagation،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1158545
Modern Language Association (MLA)
Jing, Xiaorong…[et al.]. Improved QRD-M Detection Algorithm for Generalized Spatial Modulation Scheme. International Journal of Antennas and Propagation No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1158545
American Medical Association (AMA)
Jing, Xiaorong& Wang, Mingyue& Zhou, Wei& Liu, Hongqing. Improved QRD-M Detection Algorithm for Generalized Spatial Modulation Scheme. International Journal of Antennas and Propagation. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1158545
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158545