4G and 5G technologies: A Comparative Study

摘要

Driven by the growing demand for quality assured mobility; new promising technologies have emerged, such as 4G and 5G networks, in order to meet users’ needs. Indeed, 4G networks unceasingly seek to improve the offered services and to guarantee a certain level of quality of service (QoS) for users while moving with high speeds. On his side, 5G standard is on its way. Promising superfast speeds and an end to congestion, the technology is expected to revolutionize mobile networks and create new economic opportunity: but how exactly will it do this and what makes it different to 4G standards?In this context, the purpose of the paper is a detailed study on 4G and 5G technologies. Thereby, we outline the various characteristics of 4G systems, i.e. their contributions and their behaviors in terms of QoS conservation during the movement of subscribers. The similarities and differences between the two standards have been studied to show the need to integrate LTE with WiMAX. Then, results found are well compared by the theoretical parameters of 5G technologies to precisely track the difference between 4G and 5G networks.