An Opportunistic Multi-server Scheduling Approach for Service Guarantees through Mobile Routers

In this paper, we have presented an opportunistic multi-server scheduling scheme that distributes traffic on multiple wireless interfaces of a mobile router to improve service guarantees for competing flows during mobility. The proposed adaptive, scalable, multi-server (ASM) scheduling scheme extends guaranteed-rate(GR) service model to ensure bounded service delays for each packet of flows in accordance with their committed rates. The major challenges handled through ASM scheduling include the unification of mutable heterogeneous wireless links into a single virtual channel with higher capacity. This approach enhances service guarantees without resource reservation on individual wireless links for diverse traffic sources. Hence, the transmission deadlines for multiple flows are maintained through transparently hiding disconnections during mobility. The simulation results of proposed scheme show higher degree of reliability and scalability of service provisioning during mobility.