Presentation 1997/7/25
Simple Adaptive Interference Canceller for DS-CDMA and its Performance with Voice Activation
Koji TAKINAMI, Akihiko NISHIO, Hidekazu MURATA, Susumu YOSHIDA,
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Abstract(in English) The blind adaptive interference canceller using the constrained minimun output power algorithm cancels co-channel interferences without any prior information of other user's codes. However, it tends to cancel a desired signal due to non-orthogonality caused by the frequency selective fading. In order to protect a desired signal, high pass filter is used in the previous method which required a large amount of computational complexity. In this paper, we propose a simple adaptive interference canceller. which significantly reduces the computational complexity, yet achieves almost the same BER performance as the previous method. The performance in the system with voice activation is also evaluated through computer simulations.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) DS-CDMA / adaptive interference canceller / high pass filter / reduced computational complexity / voice activation
Paper # RCS97-70
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Committee RCS
Conference Date 1997/7/25(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Simple Adaptive Interference Canceller for DS-CDMA and its Performance with Voice Activation
Sub Title (in English)
Keyword(1) DS-CDMA
Keyword(2) adaptive interference canceller
Keyword(3) high pass filter
Keyword(4) reduced computational complexity
Keyword(5) voice activation
1st Author's Name Koji TAKINAMI
1st Author's Affiliation Graduate School of Engineering, Kyoto University()
2nd Author's Name Akihiko NISHIO
2nd Author's Affiliation Graduate School of Engineering, Kyoto University
3rd Author's Name Hidekazu MURATA
3rd Author's Affiliation Graduate School of Engineering, Kyoto University
4th Author's Name Susumu YOSHIDA
4th Author's Affiliation Graduate School of Engineering, Kyoto University
Date 1997/7/25
Paper # RCS97-70
Volume (vol) vol.97
Number (no) 194
Page pp.pp.-
#Pages 6
Date of Issue