E~2LR-research On Routing Protocols Considering Multiple Performance Indicators Of Nodes In Mobile Internet Of Things

In recent years,with the continuous maturity of Internet technology and the application of mobile Internet of Things technology has exploded,and wireless self-organizing network(wireless Ad Hoc network)technology has received more and more attention.The Ad Hoc network does not rely on a fixed network infrastructure,and the network is formed by dynamic wireless links between nodes and nodes.However,the transmission range and battery energy of the nodes in the Ad Hoc network are limited,and the data transmitted between the nodes adopts the form of"multi-hop".Therefore,for Ad Hoc networks,it is very important to build a reliable data transmission path that meets the requirements.This paper studies and studies the existing AOMDV routing protocol,and finds that the AOMDV routing protocol has the following shortcomings:(1)When the route is discovered,the remaining energy of the node is not considered,and the newly established path is interrupted due to insufficient node energy.(2)After the route is discovered,one path is the primary path,and the rest are the alternate paths,thereby overusing the primary path,causing the energy loss of the primary path node to be too fast.Aiming at the shortcomings of AOMDV routing protocol,this paper proposes a new routing protocol algorithm E~2LR(Residual Energy,Energy Consumption,Loop,Routing protocol).The algorithm improves the AOMDV routing protocol as follows:(1)Avoid the use of low-energy node mechanism:In the route discovery process,according to the energy level of the node,the node discards the received RREQ packets separately,and randomly delays the forwarding.Three different decisions are forwarded to filter out nodes with lower energy.(2)Improvement of routing judgment strategy:When selecting an available path,the life cycle of all nodes on the path should be kept as consistent as possible,in order to reduce the number of interruptions of the transmission path.(3)Multi-path cyclic use:When transmitting data,cyclically use multiple paths stored by the source node to transmit data.The simulation results show that the E~2LR routing protocol can reduce the data transmission delay in the network,reduce the packet loss rate and reduce the route initiation frequency.