Dynamic Bandwidth Enhancing System Using Multiple Paths Aggregation Applying UPnP Service Collaboration Architecture

†† †† In the intermingled environment of mobile and ubiquitous computing, devices and services collaboration framework is important, because they are distributed over the local and remote networks. Universal Plug and Play (UPnP) framework is suitable for discovering and utilizing distributed devices and services on the IP network. However, the UPnP service discovery can not work beyond subnets. Also, multiple services collaboration is out of scope in the UPnP. In this paper, we propose an architecture where two agents, which control multiple services according to a written scenario, are allocated both on the local and remote networks. To evaluate this architecture, we prototyped the multiple paths aggregation system, that needs service-discovery and dynamic collaboration with multiple services over the local and remote networks. We confirmed that the bandwidth of the terminal increased dynamically when the relay terminal is added while communicating with remote server, and that the architecture worked. We measured needed time for service discovery and collaboration, and found it relatively shorter than conventional needed time from terminal adding to bandwidth enhancing.