Nonlinear Equalization Based on Decision Feedback Equalizer for Optical Communication System
نویسندگان
چکیده
NONLINEAR EQUALIZATION BASED ON DECISION FEEDBACK EQUALIZER FOR OPTICAL COMMUNICATION SYSTEM by Xiaoqi Han Nonlinear impairments in optical communication systems have become the major performance limiting factor of optical communication systems. The equalizer based on linear filters has limited compensation capability. Therefore, nonlinear models based equalizers are proposed for performance enhancement. In this thesis, a popular nonlinear processing tool, the Volterra model, is investigated. This research proposes an equalization scheme which integrates a nonlinear filter and a Decision Feedback Equalizer (DFE) to alleviate nonlinear distortions. The error detection schemes are applied to reduce the error propagation problem of DFE. Different equalization configurations consisting of nonlinear/linear filter and DFE are investigated. The results presented in this thesis can be used to design equalizers for the next generation’s optical communication system. NONLINEAR EQUALIZATION BASED ON DECISION FEEDBACK EQUALIZER FOR OPTICAL COMMUNICATION SYSTEM
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