State Aware Enhancement in DCCP for Multimedia Handovers
The multi-radio-access enabled mobile devices have enabled the integration of Fourth Generation networks with the legacy technologies. However, this integration has numerous issues for the multimedia applications, such as to smoothly continue over new connection without any service disruption during vertical handover. In this paper, the authors propose a State-aware feedback extension to Datagram Congestion Control Protocol (i.e. S-DCCP) that meets the Quality of Service (QoS) requirements of multimedia applications. They consider the mobile subscribers as roaming among heterogeneous access technologies from highly unstable to more stable access environment and model their mobility patterns as uniform, pareto and exponentially distributed.