WU Bo, SHANG Yong, XIANG Haige. Adaptive Spreading Code Assignment for an Expanded Time-Frequency OFDM System with a Zero-forcing Equalizer[J]. Chinese Journal of Electronics, 2011, 20(2): 312-316.
Citation: WU Bo, SHANG Yong, XIANG Haige. Adaptive Spreading Code Assignment for an Expanded Time-Frequency OFDM System with a Zero-forcing Equalizer[J]. Chinese Journal of Electronics, 2011, 20(2): 312-316.

Adaptive Spreading Code Assignment for an Expanded Time-Frequency OFDM System with a Zero-forcing Equalizer

  • Received Date: 2010-02-01
  • Rev Recd Date: 2010-10-01
  • Publish Date: 2011-04-25
  • The Expanded time-frequency (ETF-) OFDM system uses the two-level spreading technology for data transmissions. This system has shown to be robust against the narrowband jamming in flat fading channels. However, in multipath fading channels, the orthogonality of its spreading codes can be destroyed. To mitigate the adverse effects of multipath fading, narrowband jamming, and white noise in ETF-OFDM systems, we propose a transmission approach that finds a proper spreading code assignment at the transmitter and adopts the zero-forcing equalizer at the receiver. Simulation results show that the proposed scheme enables the ETF-OFDM system to suppress the interference under multipath fading channels.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (712) PDF downloads(715) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return