Soft Fault Estimation and Localisation in Y-Shaped Networks using OFDM-Based Signals

TL;DR

This paper presents an OFDM-based method for detecting, estimating, and localising soft faults in Y-shaped wired communication networks by analysing transmission coefficients and residuals.

Contribution

It introduces a novel OFDM-based scheme for fault detection and localisation in Y-shaped networks, including a fault-severity ratio and residual-based localisation method.

Findings

Effective fault detection and localisation demonstrated on a Y-shaped test setup.

Accurate estimation of fault severity using the proposed ratio.

The method outperforms traditional approaches in fault identification.

Abstract

This paper introduces a method for detecting, estimating, and localising a soft fault in wired communication networks. The proposed method is based on analysing the transmission coefficients (TC) in the time domain under both fault-free and faulty situations. An orthogonal frequency-division multiplexing (OFDM)-based scheme is used to estimate the TC. A fault-severity ratio is derived to estimate the fault intensity, while a residual-based function is proposed to determine its location. Experimental validation is carried out on a Y-shaped test setup to demonstrate the efficiency of the proposed approach.