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Volume 28 Issue 9
Sep.  2010
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Li Rong-wei, Wu Le-nan. Signal Processing Algorithm for Multi-carrier Middle-Voltage Distribution Line Channel with Impulse Noise[J]. Journal of Electronics & Information Technology, 2006, 28(9): 1697-1702.
Citation: Li Rong-wei, Wu Le-nan. Signal Processing Algorithm for Multi-carrier Middle-Voltage Distribution Line Channel with Impulse Noise[J]. Journal of Electronics & Information Technology, 2006, 28(9): 1697-1702.

Signal Processing Algorithm for Multi-carrier Middle-Voltage Distribution Line Channel with Impulse Noise

  • Received Date: 2005-06-17
  • Rev Recd Date: 2005-12-05
  • Publish Date: 2006-09-19
  • OFDM has received a considerable attention for realization of high-speed power line communications. Impulse, one of the main disturbances in power line, is a type of bursty, high amplitude, and low probability noise. Such impulses with very short duration will contain spectral components on all subchannels, and thus impact the decision of symbols transmitted on all subcarriers. This paper analyzes the performance of selected impulse noise detectors. The receiver detects impulse emergence and its position within an OFDM symbol by amplitude calculation combined in time and frequency domain. Samples corrupted by impulse noise are reconstructed using redundancy of the guard band in the frequency domain. Simulation results show that the proposed algorithm has a good performance for low signal-to-noise ratios, if the proper threshold is selected.
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  • Chow P S. Bandwidth optimized digital transmission techniquesfor spectrally shaped channels with impulse noise, [Doctordissertation], Stanford University, May 1993.[2]Cimmerian M, Dostert K. An analysis of the broadband noisescenario in powerline networks[C]. Proceedings of the 4thInternational Symposium on Powerline Communications and itsApplications, Limerick, Ireland, April 5th-7th,2000: 131-138[3]Ramseier S, Arzberger M, Hauser A. MV and LV powerlinecommunications: New proposed IEC standards[A]. IEEETransmission and Distribution Conference, Baden, Switerland,Vol.l, 11-16, April 1999: 235-239.[4]Haring J, Winck H, OFDM Transmission Corrupted by ImpulseNoise. Proceedings Int. Symposium on Power-LineCommunication and its Applications, Limerick, Iriland, April2000: 914-918.[5]Oppenheim A V, Schafer R W, etal.著,刘树棠,黄建Ui.离散时间信号处理.西安:西安交通大学出版社,2001:559-562.[6]Proakis J G著,张力军,张宗橙,郑宝玉等译.数字通信(第三版).北京:电r上业出版社,2001: 477-81.[7]Lechleider J. An adaptive impulse noise canceller for digitalsubscriber lines. IEEE Global Telecommunications Conference(GLOBECOM92), Orlando, FL, USA, Dec.1992: 36 39.[8]David Middleton. Non-Gaussian noise models in signalprocessing for telecommunications: new methods an results forclass A and class R noise models Inforrnatron Theory, 1999, 45(4): 1129-1149[9]李荣伟,吴乐南.lOkV中压配电线载波信道的建模.电路与系 统学报已录用.[10]Vaseghi S V. Advanced Digital Signal Processing and NoiseReduction.[J].Second Edition. John Wiley Sons Ltd.2000,:355-
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