The Future Cities Project (http://futurecities.up.pt/) has turned the city of Porto (Portugal) into an urban-scale living lab, where researchers, companies and startups can develop and test technologies, products and services. One of its largest infrastructures is the UrbanSense testbed, consisting of 25 environmental sensing units installed around the city, and another the BusNet, a vehicular ad-hoc network installed in over 400 STCP buses together with 55 Road Side Units (RSU), operated by the UP spin-off Veniam.
The data gathered by UrbanSense is carried by BusNet to a storage facility. Because BusNet does not support unicast addressing, there i currently on means to provide end-to-end reliability to the communication, leading to data losses. The goal of this thesis is to explore possibilities to address this problem, designing an application level protocol that provides reliability to the data transfer without requiring unicast addressing. Instead, the protocol should leverage the knowledge about bus routes and geographic location of sensing nodes to target the delivery of the acknowledgements
