Presentation 2008-01-25
Interference Mitigation for WCDMA Using QR Decomposition and a CORDIC-based Reconfigurable Systolic Array
Robin SCHEIBLER, James OKELLO, Katsutoshi SEKI, Tomoyoshi KOBORI, Masao IKEKAWA,
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Abstract(in English) This paper presents implementation and performance of QR Decomposition based Recursive Least-Squares (QRD-RLS) for interference mitigation in Wideband CDMA (WCDMA). The implementation is carried on CORSAEngine which is a new Software-Defined Radio (SDR) processor developed by NEC Corporation and highly optimized for MIMO-OFDM systems. It is showed how QRD-RLS can be mapped on its rectangular CORDIC-based reconfigurable systolic array, hence demonstrating its capability to process WCDMA. In addition, the performance of CORSAEngine is compared to that of other flexible architectures and it is found to perform at least 12% better in terms of computational density.
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Keyword(in English) Software-Defined Radio / QR Decomposition / Wideband CDMA / Interference Mitigation
Paper # SR2007-73
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Committee SR
Conference Date 2008/1/17(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Interference Mitigation for WCDMA Using QR Decomposition and a CORDIC-based Reconfigurable Systolic Array
Sub Title (in English)
Keyword(1) Software-Defined Radio
Keyword(2) QR Decomposition
Keyword(3) Wideband CDMA
Keyword(4) Interference Mitigation
1st Author's Name Robin SCHEIBLER
1st Author's Affiliation Swiss Federal Institute of Technology()
2nd Author's Name James OKELLO
2nd Author's Affiliation System IP Core Laboratory, NEC Corporation
3rd Author's Name Katsutoshi SEKI
3rd Author's Affiliation System IP Core Laboratory, NEC Corporation
4th Author's Name Tomoyoshi KOBORI
4th Author's Affiliation System IP Core Laboratory, NEC Corporation
5th Author's Name Masao IKEKAWA
5th Author's Affiliation System IP Core Laboratory, NEC Corporation
Date 2008-01-25
Paper # SR2007-73
Volume (vol) vol.107
Number (no) 452
Page pp.pp.-
#Pages 6
Date of Issue