A new post-coding approach for PAPR reduction in DC-biased optical OFDM systems
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Department of Electrical Engineering, University of Bonab, Bonab 5551761167, Iran

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    Abstract:

    The high peak-to-average power ratio (PAPR) is one of the main drawbacks in orthogonal frequency division multiplexing (OFDM) communication systems, which also exists in the optical OFDM (O-OFDM) systems. In this letter, a new approach based on the discrete Hartley transform (DHT) post-coding technique is proposed to reduce PAPR of an O-OFDM signal in visible light communication systems. The proposed method is compared with Walsh-Hadamard transform (WHT) and discrete cosine transform (DCT) techniques in terms of PAPR reduction and bit error rate (BER) performance. Experimental results indicate that the proposed DHT post-coding method remarkably reduces the PAPR of an OFDM signal for optical intensity modulated direct detection systems without any corruption in the BER performance.

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Abbas Ali Sharifi. A new post-coding approach for PAPR reduction in DC-biased optical OFDM systems[J]. Optoelectronics Letters,2019,15(4):302-305

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History
  • Received:August 30,2018
  • Revised:November 29,2018
  • Online: May 01,2020
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