A Blind Interference-Blocking RAKE Receiver for CDMA Communications Systems(Wireless Communication Technologies)

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概要

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• A space-time RAKE (ST-RAKE) receiver with a blind interference-blocking (IB) pre-processor, termed as the IB-RAKE receiver, is proposed for spread spectrum communications systems. The design of the proposed architecture consists of three components. A blind IB transformer is first constructed based on the received data, and then applied on the undespread data for the suppression of strong interference. After despreading, optimal beamforming is then performed on the IB despread data to extract the signals of interest (SOIs) from the desired user. Finally, a RAKE receiver with a maximum ratio combining technique is employed to constructively collect all the SOI energies. Since strong interference has been removed in the first stage, the RAKE receiver combines only those SOIs plus negligible interference, leading to robustness against strong interference. Numerical results have shown that substantial improvement can be obtained from the proposed ST-RAKE receiver with the blind IB preprocessing scheme.

• 社団法人電子情報通信学会の論文
• 2005-05-01

著者

• Li Chih

  Institute Of Communications Engineering National Sun-yat-sen University

• LIN Tsui

  Department of Electronic Engineering, National United University

• Lin Tsui‐tsai

  National United Univ. Miaoli Twn

• Lin Tsui

  Department Of Electronic Engineering National United University

関連論文

• A Blind Interference-Blocking RAKE Receiver for CDMA Communications Systems(Wireless Communication Technologies)
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