Using PR-SCTP for IPTV QoS adaptation over IMS network

In recent years, we have seen the emergence of realtime applications that have delay and reliability constraints. The challenge of the transport protocol is to provide a reliable service while reducing the delay. SCTP is a reliable transport protocol that have inherited the best characteristics of TCP and UDP and provided new attractive features such as multi-homing and multi-streaming. In this paper, we suggest the use of SCTP with the partial reliability extension as a transport protocol for the IPTV services in the IMS network, in order to improve the network performance and maximize the user satisfaction. Moreover, we have proposed an mSCTP based mobility scheme to guarantee service continuity during handover to IPTV users over IMS.