Vehicular AdHoc Networks (VANET) can be treated as special kinds of Delay-tolerant Networks (DTN) where end-toend path might never be possible. As a result, mobile adhoc (MANET) routing protocols perform poorly on DTNs. Moreover, traditional routing architecture is not scalable for public transport networks with large numbers of nodes (public transports). In this paper, we introduce a hierarchical knowledge-based DTN routing scheme for public transport networks that is not only scalable but also communication efficient. We evaluate our design using simulation with real bus traces. Categories and Subject Descriptors C.2.1 [Network Architecture and Design]: [Wireless communication]; C.2.2 [Network Protocol]: Routing protocols General Terms Performance, Reliability Keywords DTN, Delay Tolerant Networks, VANET, Vehicular AdHoc Networks, Routing
Shabbir Ahmed, Salil S. Kanhere