The Research On Energy-Feedback Based Adaptivemultipath Routing Algorithm In Wireless Sensor Network

In the recent years, driven by the bright prospects, wireless sensor network (WSN) has become more and more attractive. Meanwhile, the routing technology is one of the key technologies of wireless sensor network. The topic of this paper is selected from National Nature Science Foundation of China and other related research subjects. The results of this research have great significance in both theory and practice.By analyzing the structure, features, and application scenarios of WSN, this paper summarized the basic requirements for WSN routing protocols. Meanwhile, based on the study of current routing protocols, the conclusion that multipath routing protocol fits WSN better is obtained. In this paper, by introducing minimum-hop-routing discovery strategy and negative-feedback based probability-forwarding strategy, the Energy-feedback Based Adaptive Multipath Routing (EFAMP) is proposed. Distinguished from conventional multipath protocols, EFAMP uses multipath synchronously, but with different and adaptive adjusted frequencies. The design of EFAMP is mainly aimed at solving the problem on balancing network load, extending the network lifetime and increasing the network throughput.Furthermore, in this paper, a simulation test-bed is built by NS2 simulator under Linux environment for the proposed protocol and other two classic multipath routing protocols. Through a comparison of several indices, including network lifetime, network throughput, end to end delay and hop, and network load balance, EFAMP is proved to be a better choice for WSN scenario, which can bring a better performance to the whole network.