MSE-OFDM系统的频偏和信道估计

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Frequency offset and channel estimation in the MSE-OFDM system

TIAN Bin1;LI Yuan-ying1;WANG Xian-bin2， YI Ke-chu1;ZHANG Wei-dong3

(1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi′an 710071，China;
2. Communications Research Centre of Canada， Carling Ave Box 11490， Station H， Ottawa， ON K2H 8S2 Canada;3. Xi′an Institute of Communications， Xi′an 710106， China)

Received:1900-01-01 Revised:1900-01-01 Online:2007-04-20 Published:2007-04-20

Abstract

Abstract: Based on frequency-offset estimation for the OFDM system， a frequency-offset estimation technique for the Multi-symbol encapsulated OFDM system utilizing the repetitive signal structure to enlarge the estimation range is implemented. The channel estimation method based on the maximum likelihood principle is proposed， in which the training sequence has a relatively flat spectrum and constant peak to average ratio(PAR). Simulation results indicate that the proposed frequency offset and channel estimation methods are feasible for the MSE-OFDM system and improve its performance with a training sequence flat in the time and frequency domain.

Key words: MSE-OFDM, channel estimation, maximum likelihood principle, frequency offset estimation, training sequence

CLC Number:

TN911.3

TIAN Bin1;LI Yuan-ying1;WANG Xian-bin2; YI Ke-chu1;ZHANG Wei-dong3. Frequency offset and channel estimation in the MSE-OFDM system
[J].J4, 2007, 34(2): 170-174.

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Frequency offset and channel estimation in the MSE-OFDM system

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