Presentation 2010-07-16
Semi-blind multi-user detection using sample matrix inversion and generalized constant modulus algorithm
Yutaka SAKIURA, Koji SHIBATA, Takakazu SAKAI, Atsushi NAKAGAKI,
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Abstract(in English) We propose a semi-blind adaptive algorithm for optimization of the weighting coefficients of the receiving transversal chip-matched filter in detecting the desired signals used in direct-sequence code division multiple access(DS-CDMA)systems. In the stage for training of the proposed algorithm, the optimum weighting coefficients are derived by using the sample matrix inversion. By using the optimum weighting coefficients, fading level on the desired user's signal is estimated. In the data transmitting stage, the adaptive blind estimations of the desired signals and fading levels are executed iteratively. As the blind method, linearly constrained generalized constant modulus algorithm(LCGCMA)are adopted for preventing the signal power of the desired user from diminishing. Simulation results confirm the effectiveness of the proposed semi-blind adaptive algorithm based on SMI and CMA.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) sample matrix inversion(SMI) / linearly constrained generalized constant modulus algorithm(LCGCMA) / direct-sequence code division multiple access(DS-CDMA) / multiuser detection / weight coefficient
Paper # RCS2010-74
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Committee RCS
Conference Date 2010/7/8(1days)
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Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Semi-blind multi-user detection using sample matrix inversion and generalized constant modulus algorithm
Sub Title (in English)
Keyword(1) sample matrix inversion(SMI)
Keyword(2) linearly constrained generalized constant modulus algorithm(LCGCMA)
Keyword(3) direct-sequence code division multiple access(DS-CDMA)
Keyword(4) multiuser detection
Keyword(5) weight coefficient
1st Author's Name Yutaka SAKIURA
1st Author's Affiliation Department of Computer Sciences, Kitami Institute of Technology()
2nd Author's Name Koji SHIBATA
2nd Author's Affiliation Department of Computer Sciences, Kitami Institute of Technology
3rd Author's Name Takakazu SAKAI
3rd Author's Affiliation Department of Computer Sciences, Kitami Institute of Technology
4th Author's Name Atsushi NAKAGAKI
4th Author's Affiliation Department of Computer Sciences, Kitami Institute of Technology
Date 2010-07-16
Paper # RCS2010-74
Volume (vol) vol.110
Number (no) 127
Page pp.pp.-
#Pages 5
Date of Issue