Utilizing Directionality Information for Power-Efficient Routing in Ad Hoc Networks
Jong-Mu Choi, Young‐Bae Ko · 2003
─ Recently, the need for designing power-aware routing protocols for ad hoc networks has been stressed. In this paper, we present a new energy-efficient algorithm for routing in such networks. The proposed algorithm is called as “Directionality-based Power Efficient Routing (DPER) since it explores directionality information when determining energy-efficient routes. The use of directional information towards a destination can produce a gradually approaching route to the destination, and thus maximally utilize the saving in the power consumption of the existing power-aware routing approaches that often create an unnecessarily longer path. Our simulation results show that considering this directionality metric in power-aware routing protocols may limit the number of nodes evaluated during the routing process, and therefore can reduce the average consumed power significantly over the existing algorithms. Keywords─ Mobile Ad Hoc Networks, Power-Efficient Routing, Directionality Information, Wireless Communication.