A novel SVD-based RLS blind adaptive multiuser detector for CDMA systems

Authors:
Ling Zhang;Xianda Zhang
Affiliations:
Department of Automation, Tsinghua University, Tsinghua National Laboratory for Information Science and Technology, Beijing, China;Department of Automation, Tsinghua University, Tsinghua National Laboratory for Information Science and Technology, Beijing, China
Venue:
CIS'05 Proceedings of the 2005 international conference on Computational Intelligence and Security - Volume Part II
Year:
2005

Citing 2
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Scientific Computing

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Blind adaptive multiuser detection based on Kalman filtering

IEEE Transactions on Signal Processing

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Abstract

In this paper, we propose a novel blind adaptive multiuser detector using the recursive least squares (RLS) algorithm based on singular value decomposition (SVD) for code division multiple access systems. The new presented algorithm can overcome the disadvantages of numerical instability and divergence of the conventional RLS algorithm. Simulation results show that the novel SVD-based RLS algorithm is superior to the conventional RLS algorithm in convergence rate, numerical stability and robustness.