Cooperative Spectrum Sharing and Trust Management in IoT Networks

Abstract

In this chapter, we study the problem of cooperative spectrum leasing to the unlicensed Internet of Things (IoT) devices. We accounted for potential selfish behavior of unlicensed users. A distributed game‐theoretic framework is proposed for the purpose of spectrum leasing. In this framework, unlicensed users can borrow the spectrum access from licensed users, and, in return, they provide cooperative service for two main goals: first, to enhance information secrecy of licensed users via adding intentional jamming to protect them from potential eavesdroppers, and second, to enhance the quality of communication through cooperative relaying. A reputation‐based mechanism monitors the cooperative behavior of the IoT devices to give the chance to the primary user to only interact with the reliable IoT devices. Simulation results show that this model can offer a practical solution for spectrum sharing by improving the secrecy rate of the primary users and reducing the possible attacks from selfish IoT devices.