Enhanced Secrecy Capacity under Eavesdropping Attack in Multi-Traffic Industrial WSN

摘要

Industrial networks are increasingly based on open protocols and platforms that are also employed in the IT industry and internet background. It is essential to secure the important information throughout transmission so highest secrecy capacity is chosen in Wireless Sensor Networks. The employment of sensing element to improve the physical layer security of industrial WSN can counter the eavesdropping attack and optimal sensor scheduling scheme targets to increase the secrecy capacity of wireless transmissions from the sensors to the sink. The system model with one eavesdropper and multiple sources with different data type is used. The scheduling theme satisfies the requirements in multiple traffics and achieves maximal secrecy capacity. Numerical results validate the proposed optimum scheduling theme in Nakagami fading environment. This system model performs better than the traditional Round Robin scheme in terms of the throughput, delay and packet delivery ratio and monitors the packet transmission according to the assigned priorities.