A Fast IMS Service Recovery Mechanism for the Handover Over MIH-Capable Heterogeneous Networks

Cross-layer QoE-driven admission control and resource allocation for adaptive multimedia services in LTE

“…The resource consumption is monitored constantly and the optimization process is invoked when necessary. We implemented the heuristic algorithm developed by Akbar et al (2006) for solving the MMKP problem in terms of milliseconds, as the search for the optimal solution would be too time consuming (Ivesic et al, 2010), given the time critical nature of modifying ongoing sessions, e.g., handover induced service latency is around 1 s (Wu and Tu, 2013). During simulations, the messages are written to the standard output and the most important ones are written in the textbox at the bottom of the simulator window.…”

“…Since only a small number of sessions (those which increased their resource consumption after admission time) can be affected, the number of signalling messages would not be significant. In terms of performance, these modifications should be quick, e.g., shorter than 1.5 s, as in Wu and Tu (2013). The high level overview of signalling procedures required for calculation of MDP and proposed admission control and resource reallocation mechanisms is displayed in Fig.…”