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Technology Study of Reducing PAPR Based on Low-Voltage Power Line Communication of OFDM

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3 Author(s)
Wenliang Luo ; Fac. of Autom. & Inf. Eng., Xi''an Univ. of Technol., Xi''an ; Xizheng Ke ; Ming Ma

The existing algorithm to reduce peak-to-average power ratio (PAPR) about orthogonal frequency division multiplexing (OFDM) system will be discussed in this paper. A new algorithm is proposed for the particularity of complicated low-voltage power line network communication channel. The algorithm makes original sequence disordered through pseudo-random sequence matrix, and the disordered sequence is transformed by DFFT, then the new sequence transformed is disordered by phase in frequency domain. According to the property of complementary cumulative distribution function (CCDF) the sequence of minimal PAPR is selected to transmit. The computer simulation results show PAPR characteristic is distinctly reduced comparing with the others.

Published in:

Education Technology and Training, 2008. and 2008 International Workshop on Geoscience and Remote Sensing. ETT and GRS 2008. International Workshop on  (Volume:2 )

Date of Conference:

21-22 Dec. 2008

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