Abstract
The exponential increase in video data demands over the wireless network has created the interest among the researchers to come up with a potential solution to efficiently distribute the video content over 5G and beyond networks. Therefore, in this paper, an energy-efficient scheme for video content dissemination by utilizing the device-to-device (D2D) communication has been proposed. The work aims to address the twin issues of energy efficiency and distortion minimization simultaneously. In the current cellular networks, every user downloads the video independently which often leads to low quality as the distance between the base station (BS) and mobile device increases. In the proposed scheme, proximate mobile nodes are grouped into clusters and among them a cluster head is chosen which forwards the data to cluster members using D2D communication. To make the system more spectral efficient, performance of the proposed scheme is evaluated in underlay mode where D2D links are sharing the channels with the primary cellular users. To show the efficacy of the proposed scheme, numerical analysis is conducted, and results show that significant energy saving can be achieved with the proposed scheme as compared to the conventional multicasting scheme, and it also provides improved video quality with lesser distortion and delay.