Cooperative MTC Data Offloading with Trust Transitivity Framework in 5G Networks

The unprecedented growth in the data demands requires the effective use of data offloading techniques in 5G networks. Machine type communication (MTC) foster this growing trend even further. This paper proposes a novel cooperative data offloading scheme with the help of multiple mobile relaying devices. The proposed scheme cooperatively aggregates data from surrounding MTC devices and transmits it to the base station. The paper also presents the framework for the selection of secured and trusted relays by using the concept of trust transitivity. The proposed relay scheme is compared with existing algorithms including mobile and stationary relay schemes. The simulation results show that our proposed scheme improves outage probability and communication delay by 33% and 25%, respectively as compared to fixed relay scheme.