A Reliable Location Service for Mobile Ad Hoc Networks

Abstract

Location service support is required for mobile nodes using geographic ad hoc routing. The mobile nodes need location information of destinations for sending packets. Due to mobility or failure of the nodes, the location queries may not succeed. This paper presents a reliable location service (ReLS) mechanism that employs dual servers to maintain location information of mobile nodes. With the mechanism, the number of failed queries, including no response and erroneous results, can be reduced. ReLS has been implemented and evaluated with the ns2 simulator. The experimental results show that ReLS improves service availability and location query latency compared to the Grid Location Service (GLS).