Research On Energy Saving Routing Protocol In Mobile Ad Hoc Network

Because power of nodes is limited in the mobile ad hoc,the nodes will drop out of the network as the battery dissipations so that affects network's performance,therefore,prolonging network lifetime has being the hot spot of the energy saving study of mobile self-organizing network.Current energy-saving protocol research mainly focus on the solution to transmit a packet to minimize the total power consumption and to maximize network life time as far as possible power expending equilibrium problems.But unilaterally pursuit minimum total power consumption leads to the power consumption lowest node drop out ahead of time due to excessive consume,and the total power consumption does not save energy from the point of view of the node;unilaterally pursuit a balanced of node consumes the power loads electricity of the node to waste;the minority of protocol combinate simply minimize the amount of electricity consumed with balancing power consumption,But all are from the whole point of view and not from single point to prolong the life time of the node to realize the energy-saving autonomy of the node itself.Unadjustable for node transmission power network,this paper proposes a RBAODV based on the energy saving of the node battery,the protocol divides the battery charge into three different levels according to battery discharge characteristics,then adopted the corresponding evaluation strategies to residual power.Enable high residual power nodes to actively participate in the forwarding group to improve the routing value,but low residual power nodes are used to reduce the value of the route evaluation for the protection of the power.Routing is determined by considering the number of jumps and the residual power rating value of each node in the path.The experimental results show that the RBAODV protocol can effectively avoid the residual power of the low nodes and extend the life of the network compared with the AODV protocol performance.Adjustable for node transmission power network,forwarding a data packet based on node power consumption minimum point of view,because the existing energy-saving protocol in network node forward routing control group did not consider nodes' remaining power.This article proposes an improved solution RBTBPR protocol that prioritizes the request package from the remaining life of thepath is more adequate when the middle node forwards the routing request package.Second,consider the previous hop node to forward the route request packet to consume the least power.The total amount of power consumed by transmitting the route request packet is considered the least;Finally,the minimum number of jumps in the path of the request package is considered.And this protocol proposed the improvement of the node residual life estimation,focus only on the current remaining power and elapsed time of the node,the residual life of the node is estimated as the current remaining power of the node divided by the power consumption rate in the elapsed time.The experimental results show that the RBTBPR protocol can extend the network life of the nodes in comparison with the TBPR protocol and MCPR.