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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:Yang Wang,Danfeng Zhao,Xi Liao.Low Complexity Multiuser Detection Algorithm for Multi-Beam Satellite Systems[J].Journal of Harbin Institute Of Technology(New Series),2015,22(5):105-109.DOI:10.11916/j.issn.1005-9113.2015.05.016.
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Low Complexity Multiuser Detection Algorithm for Multi-Beam Satellite Systems
Author NameAffiliation
Yang Wang College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China 
Danfeng Zhao College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China 
Xi Liao College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China 
Abstract:
The minimum mean square error-successive interference cancellation (MMSE-SIC) multiuser detection algorithm has high complexity and long processing latency. A multiuser detection algorithm is proposed for multi-beam satellite systems in order to decrease the complexity and latency. The spot beams are grouped base on the distance between them in the proposed algorithm. Some groups are detected in parallel after a crucial group-wise interference cancellation. Furthermore, the multi-stage structure is introduced to improve the performance. Simulation results show that the proposed algorithm can achieve better performance with less complexity compared with the existing group detection algorithm. Moreover, the proposed algorithm using one stage can reduce the complexity over the fast MMSE-SIC and existing group detection algorithm by 9％ and 20.9％. The processing latency is reduced significantly compared with the MMSE-SIC.
Key words:  satellite communications  multi-beam satellites  multiuser detection  complexity
DOI：10.11916/j.issn.1005-9113.2015.05.016
Clc Number:TN927.2
Fund:

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