Hybrid monitoring scheme for end-to-end performance enhancement of multicast-based real-time media

Ju-Won Park; JongWon Kim

doi:10.1117/12.571977

25 October 2004 Hybrid monitoring scheme for end-to-end performance enhancement of multicast-based real-time media

Ju-Won Park, JongWon Kim

Proceedings Volume 5600, Multimedia Systems and Applications VII; (2004) https://doi.org/10.1117/12.571977
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

As real-time media applications based on IP multicast networks spread widely, end-to-end QoS (quality of service) provisioning for these applications have become very important. To guarantee the end-to-end QoS of multi-party media applications, it is essential to monitor the time-varying status of both network metrics (i.e., delay, jitter and loss) and system metrics (i.e., CPU and memory utilization). In this paper, targeting the multicast-enabled AG (Access Grid) a next-generation group collaboration tool based on multi-party media services, the applicability of hybrid monitoring scheme that combines active and passive monitoring is investigated. The active monitoring measures network-layer metrics (i.e., network condition) with probe packets while the passive monitoring checks both application-layer metrics (i.e., user traffic condition by analyzing RTCP packets) and system metrics. By comparing these hybrid results, we attempt to pinpoint the causes of performance degradation and explore corresponding reactions to improve the end-to-end performance. The experimental results show that the proposed hybrid monitoring can provide useful information to coordinate the performance improvement of multi-party real-time media applications.

Citation Download Citation

Ju-Won Park and JongWon Kim "Hybrid monitoring scheme for end-to-end performance enhancement of multicast-based real-time media", Proc. SPIE 5600, Multimedia Systems and Applications VII, (25 October 2004); https://doi.org/10.1117/12.571977

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