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Yu Fei, Yang Lu-xi. Phase Rotation Modulation Technique for Time-Varying OFDM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(1): 23-26. doi: 10.3724/SP.J.1146.2007.01046
Citation: Yu Fei, Yang Lu-xi. Phase Rotation Modulation Technique for Time-Varying OFDM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(1): 23-26. doi: 10.3724/SP.J.1146.2007.01046

Phase Rotation Modulation Technique for Time-Varying OFDM Systems

doi: 10.3724/SP.J.1146.2007.01046
  • Received Date: 2007-06-25
  • Rev Recd Date: 2007-12-28
  • Publish Date: 2009-01-19
  • Due to the time variation and frequency offset of mobile radio channels of the OFDM system, the orthogonality between sub-carriers will be destroyed. In this paper, a novel phase rotation technique is proposed which can suppress the Inter-Carrier Interference (ICI) efficiently. This new method can get the minimum of sub-carrier interference in frequency domain by rotating the phase properly on each sub-carrier. Simulation results show that this new scheme can suppress the ICI efficiently and achieve better system BER performance, while the frequency efficiency and transmitting power remain the same.
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