Enhancing the QoS of real-time video streaming over LTE MBMS using D2D communications

Abstract

Real-time video streaming over LTE multicast and broadcast multimedia services (MBMS) is investigated. The impact of device-to-device (D2D) communications in enhancing the quality of service (QoS) and reducing energy consumption from the batteries of mobile terminals (MTs) is studied. We propose an approach where devices cooperate on the short range by forming coalitions for the purpose of energy efficiency. In each coalition, an MT is selected to receive the video stream from the base station on the long range LTE MBMS links. Simulation results show that significant energy savings can be achieved with the proposed approach compared to the non-collaborative case, in addition to significantly enhanced QoS.