Relay Ability Estimation and Topology Control Using Multidimensional Context Parameters for Mobile P2P Multicast

The authors focus on mobile P2P multi-cast, in which mobile end nodes not only act as receivers but also relay the received stream forward to others. In mobile P2P multi-cast, negative effects caused by the change of available bandwidth and the disconnection of mobile nodes are propagated to the downstream nodes. To solve this problem, they developed a novel node-allocation framework using the multidimensional context parameters of each mobile node, which include available bandwidth, disconnection rate, and the remaining battery capacity. Considering the significance of each parameter, their method integrates these parameters into a single parameter called relay ability.