Mobile Multipath Data Transfer over Multirate Wi-Fi Links

Abstract

We present and evaluate a model for efficient multipath data transfer over multirate Wi-Fi links in mobile devices, which can include Wi-Fi hotspot and Wi-Fi direct links. Numerical investigations illustrate the impact of the Wi-Fi hotspot and Wi-Fi direct transmission rates, and the hotspot backhaul throughput. We also present testbed experiments that show the gains achieved by the proposed multirate Wi-Fi utilization model, in terms of higher aggregate throughput and improved QoE (Quality of Experience) of multipath mobile video streaming, for different transmission rates and backhaul throughputs.