Development of a Path Maintenance Based EE-OLSR Energy Model for MANETs

摘要

Energy must be significantly conserved in Mobile Ad hoc Networks (MANETs) by employing energy models. Majority of the energy models address only the hidden terminal issue, but result in higher power consumption due to increased collisions during packet transfer. The existing energy models for MANET are based on OLSR protocol and DE (Differential Evolution) ? OLSR protocol with features like QoS (Quality of Service) optimization, accuracy of energy states, distributed clustering, and energy-efficient clustering. An energy model is proposed for MANET involving an Energy-efficient Optimized Link State Routing (EE-OLSR) protocol and a path maintenance scheme. The EE-OLSR energy model is based on a progressive search for the most energy-efficient path. This model reduces the routing overhead and path setup delay, and enhances the network lifetime. The path maintenance scheme uses a flooding mechanism to decrease the control message overhead and enhance the packet delivery. The beacon messages from the primary root nodes track the destination?s location. The path maintenance based EE-OLSR model consumes lesser energy compared to the existing energy models, with respect to nodal speed, packet size, average connection arrival rate, number of nodes, grid size and packet inter-arrival time.