GMM-MUD: An Effective Multiuser Detection Algorithm for DS-UWB-Based Space Formation Flying Systems
Joint Authors
Yin, Zhendong
Wu, Zhilu
Ma, Bo
Wu, Mingyang
Shen, Tao
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In this paper, an effective multiuser detection (MUD) is proposed for direct sequence ultrawideband- (DS-UWB-) based space formation flying systems.
The proposed method called GMM-MUD is based on Gaussian mixture models (GMMs) to suppress multiple access interference.
The GMM describes probability distributions of the hypothesis testing problem which is used for bit classification.
To reveal the difference between correct bits and error bits, the preprocessing operation applies a mapping function based on optimal multiuser detection.
The parameters of GMM are estimated by using expectation-maximization (EM) algorithm.
EM algorithm employs iterative operation to simplify the complexity of maximum likelihood estimation method and considers the mapping values of received bits as the observations.
Simulation results demonstrate that the proposed GMM-MUD algorithm achieves good performances in terms of bit error rate performance, user capacity, and near-far resistance.
Moreover, the computational complexity is low enough for space formation flying applications.
American Psychological Association (APA)
Ma, Bo& Wu, Mingyang& Wu, Zhilu& Yin, Zhendong& Shen, Tao. 2019. GMM-MUD: An Effective Multiuser Detection Algorithm for DS-UWB-Based Space Formation Flying Systems. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1195605
Modern Language Association (MLA)
Ma, Bo…[et al.]. GMM-MUD: An Effective Multiuser Detection Algorithm for DS-UWB-Based Space Formation Flying Systems. Mathematical Problems in Engineering No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1195605
American Medical Association (AMA)
Ma, Bo& Wu, Mingyang& Wu, Zhilu& Yin, Zhendong& Shen, Tao. GMM-MUD: An Effective Multiuser Detection Algorithm for DS-UWB-Based Space Formation Flying Systems. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1195605
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1195605