Mobility Prediction with Direction Tracking on Dynamic Source Routing

Mobility prediction is one the most efficient techniques used to calculate lifetime estimation of wireless links (link lifetime-LLT) for a more reliable path selection. To incorporate a mobility prediction model into ad hoc routing protocols, an updating scheme should be used to maintain prediction accuracy especially for those source initiated on-demand routing protocols where LLT values are continuously changing after the route discovery phase. In this paper, a light-weight direction tracking scheme is introduced to enhance performance of the mobility prediction based routing by reassuring the accuracy of LLT used for path selection process. The simulation results show an improvement in terms of average packet latency with minimum impact on number of control messages utilized.