Research On Energy Efficient Routing Strategy In Multi-source Multi-sink WSN

With the rapid development of Internet of things, WSN, which is the core part of IoT, has received extensive attention from researchers. Large numbers of sensor nodes, which feature low cost, low power consumption,small size and multifunction,are randomly deployed to collect and fuse data in the monitoring area, then the processed data are delivered to the owners of WSN. Considering WSN is energy-constrained, energy efficiency is of great importance on the design of routing in WSN.Energy-efficient routing protocol is one of the key techniques of WSN,sensors collaborate together to reduce energy consumption and prolong network lifetime.Firstly, in this paper, we refer the suppliers?distributors and retailers?consumers supply chain model in logistics field to form the information suppliers? information distributors and retailers ?information consumers information supply chain concept model in WSN.Then we propose the supply chain collaboration based data transmission model in WSN, event broadcasting and interest diffusion collaborate to maximize the energy efficiency of the whole system.Secondly, we propose an algorithm Energy Efficient Push-Pull Based Routing. The construction process is divided into two parts, event broadcasting process and interest diffusion process. And then this algorithm constructs several paths between source nodes and sink nodes.Simulation results verified that our algorithm has achieved good performance with respect to the reduction in energy consumption and the rate of routing reconstruction.