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A New Efficient Ordering Scheme for Sphere Detection
Joint Authors
Source
Journal of Electrical and Computer Engineering
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-19
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Engineering Sciences and Information Technology
Information Technology and Computer Science
Abstract EN
The decoding order has a deep impact in the complexity of sphere detection.
A new ordering scheme for sphere detection is presented in this paper, which is based on SIC (serial interference canceling) and the gradient defined by the accumulated probability of the absolute difference between symbol element and the zero-forcing solution.
The simulation results show that the proposed ordering scheme can achieve a significant complexity reduction, especially for high numbers of antennas and large constellation sizes in the low SNR region.
Compared with sphere detection complexity under BSQR (balanced sorted QR) decomposition and GB (gradient-based) orderings at SNR=5 dB, the average number of visited nodes under our proposed ordering is reduced by almost 30% and 33% in 4×4 16QAM system and by almost 30% and 50% reduction in 6×6 16QAM system, respectively.
For 4×4 64QAM system, almost 75% and 80% reduction at SNR=0 dB and more than 40% and 50% reduction at SNR=5 dB can be achieved, respectively.
American Psychological Association (APA)
Haiyan, Cao& Jun, Li. 2011. A New Efficient Ordering Scheme for Sphere Detection. Journal of Electrical and Computer Engineering،Vol. 2011, no. 2011, pp.1-4.
https://search.emarefa.net/detail/BIM-500838
Modern Language Association (MLA)
Haiyan, Cao& Jun, Li. A New Efficient Ordering Scheme for Sphere Detection. Journal of Electrical and Computer Engineering No. 2011 (2011), pp.1-4.
https://search.emarefa.net/detail/BIM-500838
American Medical Association (AMA)
Haiyan, Cao& Jun, Li. A New Efficient Ordering Scheme for Sphere Detection. Journal of Electrical and Computer Engineering. 2011. Vol. 2011, no. 2011, pp.1-4.
https://search.emarefa.net/detail/BIM-500838
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-500838