Abstract
Multi-homing technologies are promising to support seamless user mobility, as a mobile device can use multiple access links and paths for non-interrupted transmissions. Scheduling packets across multiple paths, however, has the known issue of out-of-order (OFO) due to the heterogeneity of the paths. Mobility poses new challenges due to time-varying link quality and capacity. In this paper, we present a novel Mobility-aware Multipath Quick UDP Internet Connections (MMQUIC) framework which enables collaboration between the link and transport layer. Based on MMQUIC, we develop a Mobility-Aware Multipath Scheduler (MAMS) for goodput enhancement, in which the impacts of mobility such as link outage errors and capacity variations are considered. Finally, we evaluate the performance of MAMS using network simulator 3 (ns-3). Simulation results demonstrate that our design has substantial performance gains with respect to the goodput and packet delay distribution in dynamic wireless systems.
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