An approximation of the backhaul bandwidth aggregation potential using a partial sharing scheme

Abstract

To cope with the increasing demands of mobile devices and the limited capacity of cellular networks, mobile connections are offloaded to WiFi. The access capacity is further increased by aggregating backhaul bandwidth of WiFi access links. To analyze the performance of aggregated access links we develop a model for two and more cooperating systems sharing capacities using an offloading scheme. The state probabilities of the different cooperating systems in the analytic model are determined by a fixed point iterative procedure. By investigating an inner and outer composite system we are able to analyze the system in imbalanced load conditions where the system reaches its full potential utilizing spare bandwidth. To evaluate the robustness of the system against users that try to exploit the system, the bandwidth received by prioritized users is quantified.

Quality of experience and access network traffic management of HTTP adaptive video streaming

“…Wi-Fi mesh networks rely on direct communication among the hotspots to save or aggregate backhaul tra c volume (e.g., BeWi-Fi 15 [8,26]) or for privacy reasons (e.g., Freifunk 16 ). Therefore, the mesh of the hotspots in a city is rep- resented as a graph with hotspots as nodes, which are connected by an edge if they are within Wi-Fi range, and thus, can communicate.…”

“…122.2 km 2 , two universities, southern part of Frankfurt Rhine-Main Metropolitan Region, 30 km south of Frankfurt am Main, Germany). Since 2013, data has been collected using the NetworkCoverage 26 [319] app in both dedicated and voluntary measurement studies. The collected data include location, time, and measurement device, as well as network information like RAT, throughput, Round Trip Time (RTT), and signal strength.…”