English  |  正體中文  |  简体中文  |  Items with full text/Total items : 54367/62174 (87%)
Visitors : 14070021      Online Users : 56
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTHU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 會議論文  >  A Variable-Length FFT Processor for 4x4 MIMO-OFDM Systems

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/69516

    Title: A Variable-Length FFT Processor for 4x4 MIMO-OFDM Systems
    Authors: Chien-Chang Hung;Po-Lin Chiu;Yuan-Hao Huang
    教師: 黃元豪
    Date: 2010
    Publisher: Institute of Electrical and Electronics Engineers
    Relation: Proc. of IEEE International Symposium on VLSI Design, Automation and Test 2010 (VLSI-DAT 2010), Hsinchu, Taiwan, April 26-29, 2011
    Keywords: FFT
    MIMO-OFDM Systems
    Abstract: In this paper, we present a 128~2048-point variable-length FFT processor for 4 × 4 MIMO-OFDM systems. In general, we must use n FFT processors for the n × n MIMO-OFDM system, and only 1/r operation time is employed for radix-r pipeline butterfly processor. This increases hardware cost and reduces hardware efficiency in VLSI implementation. Therefore, we propose radix-42 algorithm to deal with four data sequences simultaneously and a butterfly sharing technique to improve the hardware utilization. The design and implementation results show that the proposed FFT processor can achieve 83.3MHz frequency with 3.19mm2 core area using a standard 90nm technology.
    Relation Link: http://www.ieee.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/69516
    Appears in Collections:[電機工程學系] 會議論文

    Files in This Item:

    File Description SizeFormat


    SFX Query


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback