Volume 39 Issue 4
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Article Navigation >  Journal of University of Electronic Science and Technology of China  > 2010  >  39(4): 537-541,555

WANG Hao, SUN Yan-hua, LI Dao-ben. Fast Detection Approach of Time-Frequency Overlapped Hybrid Division Multiplexing System[J]. Journal of University of Electronic Science and Technology of China, 2010, 39(4): 537-541,555. doi: 10.3969/j.issn.1001-0548.2010.04.013
Citation: WANG Hao, SUN Yan-hua, LI Dao-ben. Fast Detection Approach of Time-Frequency Overlapped Hybrid Division Multiplexing System[J]. Journal of University of Electronic Science and Technology of China, 2010, 39(4): 537-541,555. doi: 10.3969/j.issn.1001-0548.2010.04.013
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Fast Detection Approach of Time-Frequency Overlapped Hybrid Division Multiplexing System

doi: 10.3969/j.issn.1001-0548.2010.04.013
  • 1.

    Potevio Institute of Technology Co.,Ltd Haidian Beijing 100080;

  • 2.

    School of Electronic Information and Control Engineering,Beijing University of Technology Chaoyang Beijing 100022

  • Received Date: 2009-03-18
  • Rev Recd Date: 2009-09-03
  • Publish Date: 2010-08-15
  • In order to improve spectrum efficiency of communication system, a novel time-frequency overlapped hybrid division multiplexing system was researched. A rapid detection algorithm based on Gabor transform and an improved detection algorithm using error back propagation method was proposed. The simulation results show that the proposed rapid detection algorithm obtains significant increase in detection speed at the expense of some performance compared with maximum likelihood sequence estimation algorithm, and that the improved detection algorithm is a good compromise between system performance and detection speed and its performance is still better than the high level modulation with the same spectrum efficiency at a high signal to noise ratio. This shows that improving the transmission data rate with overlapped signals can achieve greater gains than using high-level QAM modulation with the same spectrum efficiency.
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Fast Detection Approach of Time-Frequency Overlapped Hybrid Division Multiplexing System

doi: 10.3969/j.issn.1001-0548.2010.04.013
  • 1. Potevio Institute of Technology Co.,Ltd Haidian Beijing 100080;
  • 2. School of Electronic Information and Control Engineering,Beijing University of Technology Chaoyang Beijing 100022
  • Received Date: 2009-03-18
  • Rev Recd Date: 2009-09-03
  • Publish Date: 2010-08-15

Abstract: In order to improve spectrum efficiency of communication system, a novel time-frequency overlapped hybrid division multiplexing system was researched. A rapid detection algorithm based on Gabor transform and an improved detection algorithm using error back propagation method was proposed. The simulation results show that the proposed rapid detection algorithm obtains significant increase in detection speed at the expense of some performance compared with maximum likelihood sequence estimation algorithm, and that the improved detection algorithm is a good compromise between system performance and detection speed and its performance is still better than the high level modulation with the same spectrum efficiency at a high signal to noise ratio. This shows that improving the transmission data rate with overlapped signals can achieve greater gains than using high-level QAM modulation with the same spectrum efficiency.

WANG Hao, SUN Yan-hua, LI Dao-ben. Fast Detection Approach of Time-Frequency Overlapped Hybrid Division Multiplexing System[J]. Journal of University of Electronic Science and Technology of China, 2010, 39(4): 537-541,555. doi: 10.3969/j.issn.1001-0548.2010.04.013
Citation: WANG Hao, SUN Yan-hua, LI Dao-ben. Fast Detection Approach of Time-Frequency Overlapped Hybrid Division Multiplexing System[J]. Journal of University of Electronic Science and Technology of China, 2010, 39(4): 537-541,555. doi: 10.3969/j.issn.1001-0548.2010.04.013
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