Location Service Protocol for Highly Mobile Ad Hoc Network

Abstract

In Vehicular Ad Hoc Networks (VANETs), location service protocol is utilised to locate locations of nodes to be used by position-based routing algorithms before the start of communication between source and destination. The existing location services proposed for Mobile Ad Hoc Networks (MANET) suffer from poor scalability in VANET environments. Protocols proposed for VANET do not consider load distribution on location servers and do not consider locality awareness that affects the efficiency of the protocols. This paper proposes a Quorum-Based Location Service Protocol (QLSP) designed for urban area topology; QLSP utilises the distance to intersection centre point and speed of a node in selecting main location server. QLSP distributes multi-copies of locations tables to multi-servers of the quorum in order to increase query success rate and to reduce query latency. QLSP shows excellent performance in reducing overhead of control packets, provides low query delay, and increases query success rate. The performance of the protocol is then compared to other existing location service protocols.