Presentation | 1993/11/25 DS/CDMA Adaptive Interference Canceller in Mobile Radio Environments Shousei Yoshida, Akihisa Ushirokawa, Shuzo Yanagi, Yukitsuna Furuya, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | This paper proposes a multiple-access interference (MAI) canceller for direct-sequence codedivision multiple-access (DS, CDMA) mobile radio communications,which can operate effectively in fast fading environments.The proposed canceller consists of a fractionally chip-spaced code-orthogonalizing filter and a differential detection circuit.The orthogonalizing filter adaptively makes its tap coefficients orthogonal to all other users′ spreading codes by minimising the mean squared error betwee n the detected and decision symbols.After MAI cancellation,the differential detection circuit removes the fast phase fluctuation of the desired carrier due to fading.The proposed MAI canceller only uses the desired spreading code and needs no information for other users,i.e.the spreading code,spreading timing,carrier phase and so on.Thus,the proposed canceller is of practical use and promising for future DS/CDMA mobile radio systems. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Mobile Radio Communication / Fast Fading / DS/DMA / Multiple- Access Interference / Adaptive Interference Canceller / Code- Orthogonalizing Filter |
Paper # | RCS93-76 |
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Conference Information | |
Committee | RCS |
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Conference Date | 1993/11/25(1days) |
Place (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Radio Communication Systems (RCS) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | DS/CDMA Adaptive Interference Canceller in Mobile Radio Environments |
Sub Title (in English) | |
Keyword(1) | Mobile Radio Communication |
Keyword(2) | Fast Fading |
Keyword(3) | DS/DMA |
Keyword(4) | Multiple- Access Interference |
Keyword(5) | Adaptive Interference Canceller |
Keyword(6) | Code- Orthogonalizing Filter |
1st Author's Name | Shousei Yoshida |
1st Author's Affiliation | C&C Research Laboratories,NEC Corporation() |
2nd Author's Name | Akihisa Ushirokawa |
2nd Author's Affiliation | C&C Research Laboratories,NEC Corporation |
3rd Author's Name | Shuzo Yanagi |
3rd Author's Affiliation | Personal C&C Development Laboratories,NEC Corporation |
4th Author's Name | Yukitsuna Furuya |
4th Author's Affiliation | Personal C&C Development Laboratories,NEC Corporation |
Date | 1993/11/25 |
Paper # | RCS93-76 |
Volume (vol) | vol.93 |
Number (no) | 344 |
Page | pp.pp.- |
#Pages | 8 |
Date of Issue |