**8. Conclusion**

There are many publications and published research (20,196) that pertain to 5G technology. This chapter gives researchers, practitioners, and students a pedestal to get a comprehensive look at the new technology of communication named 5G. The chapter first gives an introduction about the increasing need for 5G technology. Then, it shows the amount of research conducted and indexed in ACM and IEEE. Next, the chapter shows the development of telecommunication technology from first to fourth generation. The chapter discusses three important aspects of 5G: Regulations, security, and the five enabling technologies. The five enabling technologies included two realms: physical realm and technology realm. The physical realm included discussion of capacity, cell density, spectral efficiency, and available spectrum. On the other hand, the second realm is made of technologies: *Millimeter waves, small cells, massive multi-input multi-output (MIMO), beamforming*, and *full duplex.* The seventh section presented current situation—South Korea mobile carrier.

*Cyberspace*
