A routing scheme for connecting delay-sensitive urban vehicular networks to the IPv6-based internet

摘要

This paper proposes a routing scheme for connecting urban vehicular networks to the IPv6-based internet. In this scheme, the architecture based on vehicular domains is proposed to reduce the routing delay and packet loss. Based on this architecture, the intra-VD and inter-VD routing algorithms are proposed. In the intra-VD routing algorithm, a vehicle achieves the communications with the IPv6-based internet via the nearest access point, so the routing delay and packet loss are lowered. When a vehicle moves within one vehicular domain, its care-of address keeps unchanged. As a result, the extra routing delay and packet loss caused by the routing establishment due to the care-of address change are avoided. In the inter-VD routing algorithm, a vehicle can receive the data destined for the old and new care-of addresses from one access point, so the packet loss caused by the routing reestablishment due to the care-of address change is reduced. This scheme is quantitatively evaluated. Compared to the existing routing approach, our solution reduces the routing delay and packet loss by nearly 60 and 53%, respectively.