SHANG Yong, FENG Xiaotao. A Novel MLT-based ETF-OFDM System for Anti-Jamming Communications[J]. Chinese Journal of Electronics, 2011, 20(4): 719-724.
Citation: SHANG Yong, FENG Xiaotao. A Novel MLT-based ETF-OFDM System for Anti-Jamming Communications[J]. Chinese Journal of Electronics, 2011, 20(4): 719-724.

A Novel MLT-based ETF-OFDM System for Anti-Jamming Communications

  • Received Date: 2010-09-01
  • Rev Recd Date: 2011-01-01
  • Publish Date: 2011-10-25
  • Previous research has shown that the Expanded time-frequency OFDM (ETF-OFDM) system has good performance in anti-jamming communication. In this paper, a novel Lapped transform-based ETFOFDM system is proposed with respect to the wideband anti-jamming communication. The OFDM modulation/demodulation of the proposed system are accomplished by using Inverse modulated lapped transform (IMLT)/Modulated lapped transform (MLT) instead of Inverse discrete Fourier transform (IDFT)/Discrete Fourier transform (DFT), respectively. Compared to DFT, the basis functions of MLT have better stop-band attenuation. Benefit from this, the new system could achieve better anti-jamming performance than the ETF-OFDM system based on DFT in both without/with frequency schedule case. Simulation results show that the proposed system has better spectrum utilization and more robust anti-jamming performance than the conventional DFT-based system.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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