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    National Tsing Hua University Institutional Repository > 研究中心 > 電腦與通訊科技研發中心 > 技術報告 >  Throughput Analysis of Feedback-Directed Adaptive MIMO-OFDM Systems

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/13240

    Title: Throughput Analysis of Feedback-Directed Adaptive MIMO-OFDM Systems
    Authors: Fu-Hsuan Chiu
    Yao-Win Hong
    Kuo, C.-C.J.
    Date: 2007
    Publisher: Institute of Electrical and Electronics Engineers Inc.
    Keywords: Throughput Analysis
    Abstract: The throughput performance of adaptive multiinput multi-output orthogonal frequency division multiplexing (MIMO-OFDM) system without channel station information (CSI) in priori is investigated in this research. First, throughput scaling factor (pre-log factor) of an nt transmit antennas,nrreceive antennas MIMO-OFDM with total N subcarriers is asymptotically equal to n?(1?n? L MN ), where n? = min(nt, nr) and M is the number of OFDM blocks experienced a constant channel. Second, feedback directed adaptive schemes can achieve the pre-log factor of the lower bound. Third, diversity-multiplexing gain tradeoff of variable-rate systems has been shown to have the same behavior as MIMO systems employed with random Gaussian codewords. Finally, it is shown that throughput of OFDMA with opportunistic scheduling performs better than traditional OFDM-TDMA scheduling with constant enhancement independent of SNR in multiuser downlink environment.
    Relation Link: http://www.ieee.org/portal/site
    URI: http://nthur.lib.nthu.edu.tw/handle/987654321/13240
    Appears in Collections:[電腦與通訊科技研發中心] 技術報告
    [通訊工程研究所] 會議論文
    [積體電路設計技術研發中心] 會議論文

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