NDLI: Adaptive decision directed impulse noise mitigate in power line communication

Content Provider	IET Digital Library
Author	Tan, Zhouwen Liu, Hongli
Abstract	Impulse noise (IN) is the main cause of performance degradation in high-speed power line communication systems. Traditional methods mainly focus on manually setting a fixed blanking threshold to mitigate the corresponding IN. However, the fixed threshold cannot adapt to the time-varying IN efficiently. To solve this problem, an adaptive IN-mitigation system is proposed based on orthogonal frequency division multiplexing in a time-varying IN channel. The characteristics of IN are pre-evaluated by the method of moment estimation. Moreover, the adaptive threshold is efficiently solved in closed form according to the IN characteristics. In addition, an adaptive iterative IN-mitigation block is designed to leverage the performance of the receiver. For the number of iterations, a look-up table is constructed according to the IN characteristics. The experimental results show that the proposed method achieves performance balance in weak, moderate, and heavy IN environments simultaneously. It is noted that the bit error rate significantly decreases with an increment in E b / N 0 .
Starting Page	368
Ending Page	374
Page Count	7
ISSN	17519675
Volume Number	12
e-ISSN	17519683
Issue Number	Issue 3, May (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-spr/12/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-spr.2016.0117
Journal	IET Signal Processing
Publisher Date	2017-11-14
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Decision Directed Impulse Noise Mitigate Adaptive IN-mitigation System Adaptive Iterative IN-mitigation Block Adaptive Threshold Bit Error Rate Carrier Transmission on Power Line Error Statistics Fixed Blanking Threshold High-speed Power Line Communication Impulse Noise Look-up Table Method of Moment Estimation Method of Moments Modulation And Coding Method Numerical Analysis OFDM Modulation Orthogonal Frequency Division Multiplexing System Power Line System Statistics Table Lookup Time-varying Channel Time-varying in Channel
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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