ICI Analysis for FRFT-OFDM Systems to Frequency Offset in Time-Frequency Selective Fading Channels
ICI Analysis for FRFT-OFDM Systems to Frequency Offset in Time-Frequency Selective Fading Channels
复制标题
FRFT-OFDM 系统对时频选择性衰落信道频率偏移的 ICI 分析
DOI:
10.1109/lcomm.2010.072910.100562
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发表时间:
2010-10
期刊:
影响因子:
--
通讯作者:
Wang, Zulin
中科院分区:
文献类型:
--
作者:
Zheng, Jing;Wang, Zulin
This letter presents the effects of frequency offset to orthogonal frequency division multiplexing systems based on fractional Fourier transform (FRFT-OFDM) in time-frequency selective fading channels. FRFT-OFDM systems generalize the OFDM systems based on discrete Fourier transform by the deployment of FRFT. The expressions of signal-to-interference ratio (SIR) due to ICI are derived in different fading channels. In a flat channel, the performances of both systems are the same. In a frequency selective channel, the FRFT-OFDM systems have superior SIR performances by choosing the optimal fractional factor, when Doppler spread is comparable to the inverse of the symbol duration or carrier offset exists in the system.
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影响因子:
8.3
作者:
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通讯作者:
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