Improvement Method and Performance Analysis of RPL Routing Protocol
This paper addresses the issue of energy loss in order to increase the effective life time of nodes in the network and extend the overall service life of the network.A solution named ENPS-RPL is proposed in this paper to balance the energy consumption of key sensor nodes.The construction of Directed Acyclic Graph is adjusted according to the number of packets forwarded by key nodes,and the average energy consumption of key nodes is estimated,altering the path selection and extending the effective life time of wireless sensor networks.The performance parameters of ELT,ETX,RPL and ENPS-RPL schemes are compared in terms of link quality and network information transmission.The results indicate that the ENPS-RPL scheme exhibits the lowest average energy consumption for packet forwarding across the entire network,measured at 44 units.When the number of network nodes is 70,the ENPS-RPL scheme demonstrates a superior network lifetime,which is 220 hops.The ENPS-RPL scheme effectively mitigates energy loss of sensor nodes within wireless sensor networks,thus extending their service life.
ENPS-RPLthe number of packets forwardedperformance evaluationsensor node
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