Improvement of security protocol for Machine Type Communications in LTE-advanced

Machine type communication (MTC) takes advantages of billions of devices being connected to each other in sensing our ambient environments. When a large number of MTC devices in a group attempt to access a radio link of LTE, congestions in the link may drop throughput of data and signaling traffic significantly. This paper is presented to enhance security overheads in the radio access network by utilizing group-based authentication. Comparing to related works the proposed protocol does not require a radical change in the incumbent security protocol. Further, the proposed protocol is confirmed by performance evaluations that it produces less computational and communication overheads than the current LTE-AKA.