IMS-based IP Multicast Service Delivery over Satellite Network

Abstract

This paper describes the issues related to IP multicast support in satellites networks. The IGMP multicast membership management protocol is considered as inappropriate for multicast group management over satellite network. In fact, IGMP leads to flooding, latency and scalability issues when used over asymmetric satellite networks. Thus, we propose a new architecture for multicast services provisioning based on IP Multimedia Subsystem (IMS) as a service delivery platform. The interworking between IP multicast protocol (i.e., IGMP) and IMS protocol (i.e., SIP) is demonstrated to overcome these multicast scalability issues inherent to satellite networks. Implementation and deployment of the proposed platform over an advanced satellite network emulator is also described.

Challenges, opportunities, and solutions for converged satellite and terrestrial networks

“…The latency is the delay needed for the Querier to become aware that the multicast group is empty in order to stop multicast forwarding on it. The authors explain in [9] how to tackle the flooding and latency issues in providing multicast services. In this context, the IMS service delivery platform is used, which allows the IGMP messages to be aggregated and transmitted as a Session Initiation Protocol (SIP)-based message for managing multicast groups.…”