Title
Blind Multiuser Detection in MC-CDMA: Schmidt-Orthogonalization and Subspace Tracking Kalman Filtering
Abstract
We consider multiuser detection (MUD) to combat multiple access interference (MAI), the detrimental impairment for a multi-carrier code division multiple access (MC-CDMA) system. The celebrated method of projection approximation subspace tracking deflation (PASTd) has been shown to achieve a good trade-off between performance and complexity. To further reduce the complexity and improve the performance especially in the presence of multi-path fading, we propose a new, adaptive, blind MUD algorithm by jointly exploiting the useful signal processing tools of Schmidt-orthogonalization and subspace Kalman-filtering. The improved algorithm, termed Schmidt-orthogonalized PASTd with subspace Kalman-filtering (SPASTd&K), not only performs well in single- and multi-path fading alike, but is also robust against parameter-mismatch, and particularly advantageous in the present of strong multiple access interference.
Year
DOI
Venue
2011
10.1109/CMC.2011.50
CMC
Keywords
Field
DocType
blind multiuser detection,celebrated method,strong multiple access interference,signal processing tools,kalman filters,multiple access interference,multicarrier code division multiple access system,schmidt-orthogonalized pastd,schmidt-orthogonalization,multipath fading,multi-path fading,adaptive blind mud algorithm,mc-cdma,code division multiple access,subspace kalman-filtering,subspace tracking kalman filtering,multiple access,blind mud algorithm,multiuser detection,projection approximation subspace tracking,projection approximation subspace tracking deflation,improved algorithm,signal to noise ratio,signal processing,approximation algorithms,fading,kalman filter
Approximation algorithm,Subspace topology,Fading,Control theory,Computer science,Signal-to-noise ratio,Multiuser detection,Algorithm,Kalman filter,Code division multiple access,Orthogonalization,Distributed computing
Conference
ISBN
Citations 
PageRank 
978-1-61284-312-4
0
0.34
References 
Authors
5
5
Name
Order
Citations
PageRank
Yinhui Yu101.69
Jing (Tiffany) Li211111.78
Zhen Wang34420.61
Shingang Wang400.34
Huichuan Zhang500.34