LLA: A New Anypath Routing Scheme Providing Long Path Lifetime in VANETs

Vehicular ad-hoc networks (VANETs) are a promising solution to improve the road traffic safety, reduce the environmental pollution, or simply provide the on-board infotainment services. However, these actions are often not possible due to high mobility of vehicles causing frequent failures of VANET links. In this paper, we focus on anypath routing to improve the reliability of multihop VANET communications. In particular, the paper is the first one to address the link stability \hbox{issues and to propose} a method called Long Lifetime Anypaths (LLA) providing stable communication paths. Advantages of our \hbox{approach}, presented in comparison to the reference Shortest Anypath First (SAF) scheme, are confirmed throughout simulations.