Presentation 2010-12-02
Circuit Design of a 128-point FFT Processor Using Pipeline MDC Architecture for 8x8 MIMO-OFDM Receivers
Atsushi ORIKASA, Yoshikazu MIYANAGA, Shingo YOSHIZAWA,
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Abstract(in English) This report presents a VLSI architecture of 128-point FFT in a 8x8 MIMO-OFDM receiver. A pipeline FFT processor based on multi-path delay commutator(MDC) architecture is effective for 4x4 MIMO-OFDM systems. To achieve the communication of more high speed and large capacity, it is necessary to design the FFT processor corresponding to the MIMO-OFDM receiver that increases the number of streams. In this paper, we propose the FFT processor to apply the MDC architecture for 8x8 MIMO-OFDM systems. The proposed FFT processor uses the pre- and post-commutators instead of delay elements and improves area and power efficiency. The designed circuit has been implemented to a 90-nm CMOS process and evaluated in circuit area and power consumption.
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Keyword(in English) FFT / Multi-path delay commutator(MDC) / MIMO-OFDM / VLSI Architecture
Paper # SIS2010-45
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Committee SIS
Conference Date 2010/11/25(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Circuit Design of a 128-point FFT Processor Using Pipeline MDC Architecture for 8x8 MIMO-OFDM Receivers
Sub Title (in English)
Keyword(1) FFT
Keyword(2) Multi-path delay commutator(MDC)
Keyword(3) MIMO-OFDM
Keyword(4) VLSI Architecture
1st Author's Name Atsushi ORIKASA
1st Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University()
2nd Author's Name Yoshikazu MIYANAGA
2nd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
3rd Author's Name Shingo YOSHIZAWA
3rd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
Date 2010-12-02
Paper # SIS2010-45
Volume (vol) vol.110
Number (no) 322
Page pp.pp.-
#Pages 6
Date of Issue