Core Technologies and Harmful Effects of 5G Wireless Technology

5G (fifth generation) technology is used to interconnect all terminals, networks, multiple wireless technologies, applications simultaneously which can also switch between them based on VOIP (Voice-over-IP), flat IP, and Internet Protocol Version 6 (IPv6), thus user experiences call volume services and high-level data transmission. 5G network is reliable and very fast with minimum delay, higher data rate, greater security, real-time data handling, less error rate, and few data losses. The core technologies used in 5G networks include cloud computing, Heterogeneous Network (Het Net), internet of things (IoT), Cognitive Radio (CR) network, software-defined networking (SDN), Multiple Input Multiple Output (MIMO), and massive MIMO. 5G produces different harmful effects such as human health issues, environmental issues, health issues on birds and animals, thermal effects, etc. Regulating agencies have to set a Specific Absorption Rate (SAR), its maximum levels for handsets, and every mobile phone must have a SAR rating. 5G technology is used as intelligent technology in which 5G mobile phones can also be used as a tablet PC. This paper presents a general review on 5G along with its comparison with 4G, the general architecture of 5G, a detailed explanation about core technologies of 5G, and also harmful effects on different issues using 5G.