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Research on inter-carrier interference cancellation based on differential coding in OFDM system

  • Beihang University

科研成果: 期刊稿件文章同行评审

摘要

For Orthogonal Frequency-Division Multiplexing (OFDM) communication systems with high mobile speed, the frequency offset caused by Doppler frequency offset and the frequency differences will introduce Inter-Carriers Interference (ICI), which degrades the performance. Based on the analysis of the interference mechanism of ICI, a high efficient ICI cancellation scheme based on differential coding in terms of channel estimation is introduced. This scheme improves the spectrum usage efficiency of ICI self-cancellation. And compared with the normal OFDM system, the proposed scheme has 4dB channel estimation improvement and avoid the error floor caused by ICI.

源语言英语
页(从-至)1529-1532
页数4
期刊Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology
29
7
出版状态已出版 - 7月 2007

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