Research On Secure Routing For Wireless Sensor Networks

Wireless Sensor Networks have a wide prospect of applications in millitary, agri-culture, industry, medical and environmental monitoring. It is really a hot issue during these years. For the nature of the restricted resources of computing and power, the technologys for WSNs is much different from that for traditional networks some times. The secure routing protocols are on the edge of disscusions about WSNs. The keypoint is the secure-oriented designs also should be energy-efficient.This paper discussed the characteristics of WSNs, including the development and status of research. and some protocols considering security issues.Then introduced some typical routing protocol attacks and countermeasures. After that, proposed a gaussian distribution-based reputation model for sensor node, and a energy-efficient secure routing protocol.1,Proposed GRFSN++, a improved version of GRFSN, by using uncertain theory.A better way of taking indirect reputation was fully discussed and demonstrat-ed.and take the point of view about catagorising the malicious behaviors. GRFSN++ separated the malicious evaluations from other malicious acts, made it more confident of taking reputations of sensor nodes.2,Improved RPFS-NWS and design a energy-efficient secure protocol RBEER based on reputation system. By using partial multi-path routing and negative evaluation feedback to avoid malicious behaviors. RBEER reduced nodes' energy overhead in the context of ensuring network security, extended the lifetime of the entire network. The simulations showed that RBEER is more energy efficient and have a higher delivery rate of package.