A continuous method for solving multiuser detection in CDMA

Authors:
Fengmin Xu;Chengxian Xu
Affiliations:
School of Science, Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China;School of Science, Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China
Venue:
AAIM'05 Proceedings of the First international conference on Algorithmic Applications in Management
Year:
2005

Citing 4
Cited 0

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Quasi-maximum-likelihood multiuser detection using semi-definiterelaxation with application to synchronous CDMA

IEEE Transactions on Signal Processing
The application of semidefinite programming for detection in CDMA

IEEE Journal on Selected Areas in Communications

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Abstract

This paper mainly focuses on a new continuous method for solving multiuser detection in CDMA using the NCP function. This approach is completely different from the relaxation method in the sense that it is an equivalent conversion. The resulting nonlinear programming problem of multiuser detection is then solved using the augmented Lagrange penalty function method. The convergence property of the proposed algorithm is studied, and numerical experiments show this method is very effective.