Interference Suppression in a MLT Based Spread Spectrum System with Digital Beamforming

摘要：

In this paper, we improve the traditional expanded time and frequency OFDM (ETF-OFDM) system by using Inverse Modulated Lapped Transform (IMLT)/Modulated Lapped Transform (MLT) instead of Inverse Discrete Fourier Transform (IDFT)/Discrete Fourier Transform (DFT) in the OFDM modulation/demodulation part, respectively. For further interference suppression, we adopt the digital beamforming scheme at the transmitter to null-steering the jammings. Simulation results show that the proposed system has better anti-jamming performance than the conventional DFTbased system.

关键词： ETF MLT anti-jamming null-steering

作者: Xiaotao Feng Yong Shang

作者单位: School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, P.R.. China

会议类型: 国际会议

会议名称: Third International Symposium on Information Science and Engineering(第三届信息科学与工程国际会议 ISISE 2010)

会议地点: 上海

会议语种:英文

页码: 113-116

在线出版日期: 2010-12-24（万方平台首次上网日期，不代表论文的发表时间）