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A simple peak-to-average power ratio reduction scheme for all optical orthogonal frequency division multiplexing
Xiaojun Liang1, Wei Li, Weidong Ma
1Wuhan National Lab for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, P.R.China.
Optics Express
|September 3, 2009
Abstract:
This paper fundamentally investigates the peak-to-average power ratio (PAPR) theory in all optical orthogonal frequency division multiplexing (OFDM) systems which employ intensity modulation-direct detection (IM-DD) scheme. We propose a low-complexity PAPR reduction scheme based on phase pre-emphasis. Simulations show that the proposed scheme brings about a 3.74 dB PAPR reduction and better nonlinear impairment tolerance in a 16x10Gb/s IM-DD all optical OFDM system.
