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Blind channel identification and equalization in OFDM system without cyclic prefix

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2 Author(s)
Huang Xuejun ; Nanjing Univ. of Posts & Telecommun., China ; Bi Houjie

This paper proposes a new OFDM system in which its channel can be blindly identified and equalized. By precoding OFDM blocks with different length in the OFDM system, without cyclic prefix, cyclostationarity is induced in the transmitter, so the channel in the OFDM system is guaranteed to be identifiability. Based on the estimation of the channel, a one-tap decision feedback equalizer (DFE) is developed for channel equalization. The performance of the OFDM system is simulated.

Published in:

Communication Technology Proceedings, 2003. ICCT 2003. International Conference on  (Volume:2 )

Date of Conference:

9-11 April 2003