Presentation 2007-12-20
Low Complexity Reduced-Rank MMSE Equalization for Antenna Array BS/CDMA Communication System
Satoshi KAWASHIMO, Tsuyoshi ICHIKAWA, Kohei OTAKE, Noriyoshi KUROYANAGI,
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Abstract(in English) Block-Spread CDMA (BS/CDMA) communication system has received much attention as an MUI-free system even under the multi-path environments, and it might be expected to improve further BER characteristics by introducing receiving antenna arrays. But, in this system there occurs inter-symbol interference in each data-block, and if we use an MMSE detector to suppress it, it causes considerable processing cost. In this paper, using the property that the correlation matrix in the DFT domain for the system constitutes a block diagonal matrix, a low complexity reduced-rank MMSE detector is proposed. Computer simulations for the proposed detector are conducted, and the effectiveness of the method is shown in terms of SINR and BER characteristics.
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Keyword(in English) BS/CDMA / adaptive array antenna / reduced-rank MMSE equalization / inter-symbol interference / gradient
Paper # RCS2007-114
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Conference Information
Committee RCS
Conference Date 2007/12/13(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) Low Complexity Reduced-Rank MMSE Equalization for Antenna Array BS/CDMA Communication System
Sub Title (in English)
Keyword(1) BS/CDMA
Keyword(2) adaptive array antenna
Keyword(3) reduced-rank MMSE equalization
Keyword(4) inter-symbol interference
Keyword(5) gradient
1st Author's Name Satoshi KAWASHIMO
1st Author's Affiliation Faculty of Engineering, Hosei University()
2nd Author's Name Tsuyoshi ICHIKAWA
2nd Author's Affiliation Faculty of Engineering, Hosei University
3rd Author's Name Kohei OTAKE
3rd Author's Affiliation Faculty of Engineering, Hosei University
4th Author's Name Noriyoshi KUROYANAGI
4th Author's Affiliation College of Engineering, Chubu University
Date 2007-12-20
Paper # RCS2007-114
Volume (vol) vol.107
Number (no) 402
Page pp.pp.-
#Pages 6
Date of Issue