Journal of Shanghai University(Natural Science Edition) ›› 2015, Vol. 21 ›› Issue (5): 560-569.doi: 10.3969/j.issn.1007-2861.2014.03.014

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Allocation scheme of short training sequence based on OFDM-PON

CHEN Xi, XU Chao-xing, JIANG Yuan, LI Ying-chun   

  1. School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
  • Received:2014-04-30 Online:2015-10-30 Published:2015-10-30

Abstract: A short training sequences for orthogonal frequency division multiplexingpassive optical network (OFDM-PON) symbol synchronization is proposed. By adjusting the subcarrier allocation scheme of short training sequence in a wireless local area networks (WLAN), the mean of short training sequence signal in time domain is made from non-zero to zero, overcoming interference of receiving data demodulation caused by the wrong trail of the non-zero mean short training sequence in the time-domain. Simulation and experiments on data demodulation show that the improved method can effectively reduce training sequence interference errors caused by tailing.

Key words: orthogonal frequency division multiplexing-passive optical network (OFDMPON), symbol synchronization, training sequence

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