Blind Multiuser Detection for Long Code Multipath DS-CDMA Systems with Bayesian MC Techniques

Authors:
Qian Yu;Guoan Bi;Liren Zhang
Affiliations:
Information System Research Lab, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang, Singapore 639798;School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang, Singapore 639798;School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang, Singapore 639798
Venue:
Wireless Personal Communications: An International Journal
Year:
2006

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Space-Time Blind Multiuser Detection for Multiuser DS-CDMA and Oversampled Systems

Wireless Personal Communications: An International Journal

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Abstract

This paper presents an efficient Bayesian blind multiuser receiver for long code multipath CDMA systems. The proposed receiver employs the adaptive sampling method for the Bayesian inference procedure to estimate the data symbols and multipath parameters. Compared to the other reported Bayesian Monte Carlo receivers for long code multipath CDMA systems, the proposed one achieves a faster convergence and a lower computational complexity to attain comparable performance. Simulation results are presented to demonstrate the effectiveness of the proposed Bayesian blind multiuser receiver.