Summary
International Symposium on Electromagnetic Compatibility
2009
Session Number:21P3
Session:
Number:21P3-2
Immunity Test of IP Devices against Repetitive Impulsive Noise
N. Nakamura,
pp.129-132
Publication Date:2009/7/20
Online ISSN:2188-5079
Summary:
The use of IP services is spreading widely with the advent of Internet technologies. These services, especially real-time services such as IP-TV, strongly require sufficient Quality of Service (QoS), and they are sensitive to impulsive noise. On the other hand, on user premises, impulsive noise occurs when home electric/electronic appliances are operated, e.g., when switches are turned on and off. Therefore, electromagnetic compatibility (EMC) problems may occur, and test methods based on QoS need to be studied. In this study, we investigated an immunity test of IP networks focusing on Ethernet frames. First, a simple simulation of the interaction between impulsive noise and Ethernet frames was carried out. Then an immunity test based on IEC standards was carried out, and the results were compared with the simulated ones. The simulation results agreed well with the measured results, which demonstrates the validity of the simulation method. Finally, by examining different frame loss rates, we found it is possible to determine the place where the error occurs.