Energy-Efficient Location Service Protocols for Mobile Ad Hoc Networks

Location-based routing protocols are stateless since they rely on position information in forwarding decisions. However, their efficiency depends on performance of location services which provide the position information of the desired destination node. Although several location service schemes have been proposed, their main goal is merely to find the location of the destination node. Seldom they consider energy efficiency in their designs for the forwarding of location update and query packets. Based on the analysis of the previous works, we propose two novel location service protocols aiming to decrease the distance traveled by the location update and query packets and, thus, to reduce the overall energy cost. Simulation results for both static and mobile networks are presented to demonstrate that the proposed schemes achieve significantly higher energy efficiency and improve the query success rate in comparison to the previously proposed algorithms.