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Power-Efficiency in Asymmetrically-Clipped Optical OFDM System with Truncated-PAPR
Abstract An asymmetrically-clipped optical OFDM (ACO-OFDM) system is known to be more power-efficient and more amenable towards supporting higher peak-to-average-power-ratios (PAPR), as compared to its counterpart, direct current-biased OFDM (DCO-OFDM) system. Signal transmission with high-valued PAPR incurs penalties due to the onset of nonlinearities in the amplifiers and optical sources. In this paper, we heuristically vary the effective PAPR through pre-clipping (effectively truncating), quantified by a scaling-down factor (<1.0), while taking into account its corresponding cumulative distribution function (CDF) as a weighing-factor in the analytical performance model. Numerical simulation results provide insights into useful range of operation of the OFDM transmitter, for optimized overall power-efficiency of the system.
Power-Efficiency in Asymmetrically-Clipped Optical OFDM System with Truncated-PAPR
Abstract An asymmetrically-clipped optical OFDM (ACO-OFDM) system is known to be more power-efficient and more amenable towards supporting higher peak-to-average-power-ratios (PAPR), as compared to its counterpart, direct current-biased OFDM (DCO-OFDM) system. Signal transmission with high-valued PAPR incurs penalties due to the onset of nonlinearities in the amplifiers and optical sources. In this paper, we heuristically vary the effective PAPR through pre-clipping (effectively truncating), quantified by a scaling-down factor (<1.0), while taking into account its corresponding cumulative distribution function (CDF) as a weighing-factor in the analytical performance model. Numerical simulation results provide insights into useful range of operation of the OFDM transmitter, for optimized overall power-efficiency of the system.
Power-Efficiency in Asymmetrically-Clipped Optical OFDM System with Truncated-PAPR
Ratnam, Jayashree (author) / Mali, Sabita (author)
2019-06-28
9 pages
Article/Chapter (Book)
Electronic Resource
English
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