A Trusted Routing Mechanism Suitable for the Sensing Nodes in Internet of Things

The sensing layer of Internet of Things is composed of heterogeneous sensing networks, sensing layer data is fast and reliable transmission is the basis of trusted operation of the Internet of things, the choice of routing in the data transmission process is critical to the life cycle of the sensing node, the success rate of data transmission, and the feedback control of the network layer and application layer. But the current sensing layer routing mechanism lacks credible considerations for data transmission paths and its environmental adaptability is poor. In order to ensure that the Internet of things perceived layer of data quickly and reliably transmitted, this chapter presents a trusted routing mechanism for sensing nodes, based on the node trust measure, this model calculates the bandwidth and energy available between nodes, taking into account the influence of available bandwidth and energy on data transmission between nodes. It uses the dynamic programming method to calculate the trusted path of data transmission between nodes, to ensure that the data transmission between trusted nodes trusted. The routing mechanism proposed in this chapter has the characteristics of low overhead, high scalability and easy project realization. Simulation experiments show that the routing mechanism is good to against attack, extensive environmental adaptability, can effectively resist selective forwarding attacks, node hijacking attacks. Compared with the existing scheme, this mechanism effectively reduces the communication overhead in the routing establishment process, and significantly improves the network performance and has a good application prospect.