基于普通节点负载均衡的RPL路由协议

The RPL Routing Protocal Based on Load Balance of Ordinary Node

传统的RPL路由协议并未涉及到节点负载均衡的问题,容易造成网络局部负载过重导致部分节点死亡。阐述了RPL路由协议的拓扑构建、路由过程及一些现有的目标函数,定义了邻居距离和剩余能量级别两个参考指标,通过划分能量级别和改变通信半径两重负载均衡方法,提出了一种基于普通节点负载均衡的RPL路由协议——OLB-RPL。通过实验仿真验证结果证明改进后的协议可以实现网络中普通节点的负载均衡,并且在减少节点能量消耗的同时延长了整个网络的生存时间。

Traditional RPL routing protocol does not involve the load balance strategies,which is easy to cause local networks over load even leads to the deaths of some nodes. This paper expounds the topological construction and the routing process of RPL routing protocol and some existing Objective Function,then it defines two reference indexes which are the Node Neighbor Distance and Remaining Energy Level. The paper proposes a OLB-RPL routing protocol based on load balance of ordinary node through dividing the energy level and changing the communication radius. At last,we proved that the improved routing protocol achieve the load balancing of the ordinary node through simulation verification,and the new protocol reduces the node energy consumption,and prolong the survival of the whole network.