Presentation 2001/1/11
An Improvement method of Convergence of Adaptive RAKE Receiver for DS/CDMA Communications
Yuichiro Okuyama, Kunio Oishi,
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Abstract(in English) This paper presents an improvement method of convergence of multi-access interference suppression algorithm for DS/CDMA communications over multipath channels. The convergence to the optimal filter coefficients cannot be ensured for the MOE algorithm, which is one of interference suppression filters. In order to solve the problem, Ishikawa et al. proposed the MSIR algorithm, which converges the optimal filter coefficients with the desired signal. However, the convergence of the MSIR algorithm is influenced by the desired user's estimate signal. We propose an interference suppression algorithm using variable step law, which changes the MOE algorithm to the MSIR algorithm due to reliability of the desired user's estimated signal. Simulation results show the proposed algorithm has better performance than conventional algorithms.
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Keyword(in English) DS/CDMA / Adaptive signal processing / Interference suppression / RAKE receiver / Channel estimation
Paper # DSP2000-144,SAT2000-100,RCS2000-176
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Conference Information
Committee DSP
Conference Date 2001/1/11(1days)
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Registration To Digital Signal Processing (DSP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Improvement method of Convergence of Adaptive RAKE Receiver for DS/CDMA Communications
Sub Title (in English)
Keyword(1) DS/CDMA
Keyword(2) Adaptive signal processing
Keyword(3) Interference suppression
Keyword(4) RAKE receiver
Keyword(5) Channel estimation
1st Author's Name Yuichiro Okuyama
1st Author's Affiliation Graduate School of System Electronics, Tokyo University of Technology()
2nd Author's Name Kunio Oishi
2nd Author's Affiliation Electronics Department, School of Engineering, Tokyo University of Technology
Date 2001/1/11
Paper # DSP2000-144,SAT2000-100,RCS2000-176
Volume (vol) vol.100
Number (no) 557
Page pp.pp.-
#Pages 7
Date of Issue