A Note on 5G Networks: Security Issues, Challenges and Connectivity Approaches

The “5G” mobile network is expected to achieve the demanding needs of mobile traffic in the twenty-first century and predicted to be the essential architecture for the advance assistance or services (Wang et al. in Trans Emerg Telecommun Technol 28(9):e3155, 2017). The new services provided by the “5G” network come with new demands and difficulties that cause hindrance in the desirable aim of the advancing mobile network. Mobile communication administrator is again analyzing the design of their network to produce adjustable, changing and effective, commercial and smart solutions. With the emergence of 4G, wireless mobile network took place to provide the services many researchers and cellular network administrators started examining the development for more advance network 5G to fulfill the requirement of higher data rates, greater range of area, lesser delay in providing services and effective QoS (Quality of Service). In the existing network architecture, extensive development is needed to meet the future demands. The key features of 5G wireless cellular network are versatile, convenient and cloud based services which will establish the innovative and futuristic mobile communication as the leading protocol for worldwide communication. In this paper, we talk about the 5G mobile network, about its needs and key features, the drawbacks associated with it and its architecture. We will overview the current technology and shortcoming associated with it and evolution of generation of network with their main characteristic. We will analyze how 5G is different from existing technologies and its impact on society. The 5G network design considerations are also discussed, with cloud radio access network, ultra- dense network, software defined network and network function virtualization examined as key potential solutions towards a green and soft 5G network(Chih-Lin et al. in Philos Trans R Soc A Math Phys Eng Sci 374:20140432, 2016).