Liu Jie-hua, Yang Dong-kai, Chang qing, Zhang Qi-shan. Research on Inter-carrier Interference Cancellation Based on Differential Coding in OFDM System[J]. Journal of Electronics & Information Technology, 2007, 29(7): 1529-1532. doi: 10.3724/SP.J.1146.2005.01698
Citation:
Liu Jie-hua, Yang Dong-kai, Chang qing, Zhang Qi-shan. Research on Inter-carrier Interference Cancellation Based on Differential Coding in OFDM System[J]. Journal of Electronics & Information Technology, 2007, 29(7): 1529-1532. doi: 10.3724/SP.J.1146.2005.01698
Liu Jie-hua, Yang Dong-kai, Chang qing, Zhang Qi-shan. Research on Inter-carrier Interference Cancellation Based on Differential Coding in OFDM System[J]. Journal of Electronics & Information Technology, 2007, 29(7): 1529-1532. doi: 10.3724/SP.J.1146.2005.01698
Citation:
Liu Jie-hua, Yang Dong-kai, Chang qing, Zhang Qi-shan. Research on Inter-carrier Interference Cancellation Based on Differential Coding in OFDM System[J]. Journal of Electronics & Information Technology, 2007, 29(7): 1529-1532. doi: 10.3724/SP.J.1146.2005.01698
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.
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