5G Energy Efficiency for Smart Cities: A Call Admission Control Proposition

Over the years, several generations of mobile radio have followed one another every decade. The transition from one generation to another is dictated by a concern about performance in terms of mobility, speed, delay, multiplicity of services etc. Nowadays, unlike previous generations, 5G technology is not only interested in the needs of mobile operators (telephony, video download, mobile applications, etc.) but also, and above all, in different applications and diverse uses such as Smart City, safety, transportation, energy, health, industry and security. All these services are unified by 5G technology. This technology manages an Ultra Dense Network (UDN) and therefore consumes a lot of energy. This chapter deals with the issue of Call Admission Control (CAC) in 5G networks, energy efficiency and state of the art in this area. It suggests a CAC modeling algorithm in the case of a New Radio Access (NR 5G). It also addresses the issue of handover and more generally mobility management, power control and interference. All of this is done by considering and ensuring acceptable QoS and QoE, as well as energy efficiency. In this chapter, we focused on the development of an algorithm for improving call admission control essentially based on minimal energy consumption, knowing that there are other parameters on which we can act for better energy efficiency.