Adaptive Detection for CDMA Multipath Signal Based on Signature Wave form Tracking(Special Section on Spread Spectrum Techniques and Applications)

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概要

• 論文の詳細を見る

• This paper aims to provide a robust multiuser detection structure that adaptively tracks signature wave form distortion for CDMA multipath signals. In practical wireless environment, multipath fading leads to signature wave form distortion that severely degrades the performance of the linear multiuser detectors(LMDs)designed by exploiting the original signature wave form. In what follows, an iterative algorithm is proposed to track the signature wave form perturbation. The rationale of adaptive processing is based on the subspace method and the Minimum Variance Distortionless Response(MVDR)beamforming concept. Performance evaluation reveals that the proposed adaptive multiuser detection structure reduces the impact of signature wave form perturbation on the performance of the LMDs to a great extent. Moreover, the proposed iterative algorithm is near-far resistant since both the subspace method and the MVDR beam forming technique are energy independent to the interferers.

• 社団法人電子情報通信学会の論文
• 2001-12-01

著者

• Wu Wei-chiang

  The Department Of Electrical Engineering Da Yeh University

• Dai Jiang-whai

  The Department Of Electrical Engineering Da Yeh University

関連論文

• Timing Estimation of CDMA Communication Based on MVDR Beamforming Technique (Special Section on Spread Spectrum Techniques and Applications)
• The Stability of Randomly Addressed Polling Protocol (Special Issue on Network Interworking)
• Adaptive Detection for CDMA Multipath Signal Based on Signature Wave form Tracking(Special Section on Spread Spectrum Techniques and Applications)

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