New methods for passive estimation of TCP round-trip times
PAM'05 Proceedings of the 6th international conference on Passive and Active Network Measurement
Active/passive combination-type performance measurement method using change-of-measure framework
Computer Communications
Provisioning for interdomain quality of service: the MESCAL approach
IEEE Communications Magazine
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In this paper, we propose a network performance monitoring method which can measure delay of each network using the RTCP(Real-time Transport Control Protocol) timestamp fields to detect a trouble section in interworking environment. According to the increment of real-time multimedia service provision, network performance monitoring method is necessarily needed for QoS management of real-time services in the interworking environment between different networks. Multimedia services such as video conference, VoIP (Voice over IP) service and IPTV service are sensitive to the network performance(e.g. delay, delay variance and packet loss etc). In this case, it is very important to detect a trouble section when service quality degradation occurs in the interworking environment. So, we propose the network monitoring method for multimedia services through delay measurement using RTCP in each network. Also, with this method, we can detect and define which network has generated a poor network performance.