An Effective CDMA Multi-User Detection Scheme-Orthogonal Decision-Feedback Detection and Its Performance Analysis

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概要

• 論文の詳細を見る

• A novel CDMA multi-user detection scheme, orthogonal decision-feedback detector (ODFD), is proposed for a synchronous CDMA system in this paper. It is robust for its near-far resistance and high multi-user detection efficiency with a performance similar to that of decorrelating decision-feedback detector (DDFD) but with a reduced complexity. The ODFD scheme employs a match-filter bank that matches a set of ortho-normal sequences. The ortho-normal sequences are generated by the Gram-Schmidt orthogonalisation procedure based on the spreading codes. The ODFD algorithm involves only with the ortho-normal coefficient-matrix which requires no frequent recalculations even when system parameters change. Successive decision-feedback detection is carried out immediately at the output of the ODFD match-filter bank without matrix inversion operations, resulting in a much simplified structure.

• 社団法人電子情報通信学会の論文
• 1997-01-25

著者

• Chen Xiao

  The Department Of Electrical Engineering The National University Of Singapore

• Sim Hak

  The Department Of Electrical Engineering The National University Of Singapore

• KOOI Pang

  the Department of Electrical Engineering, The National University of Singapore

• Kooi Pang

  The Department Of Electrical Engineering The National University Of Singapore

関連論文

• Correlation Statistics Distribution Convolution(CSDC)Modeling for Studying CDMA Indoor Wireless Systems with RAKE Receiver, Power Control & Multipath Fading
• Constructing QuaSi-Optimum GMW and M-Sequence Subfamilies with Minimized System Bit Error Rate
• An Effective CDMA Multi-User Detection Scheme-Orthogonal Decision-Feedback Detection and Its Performance Analysis

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