Communication Networks

Abstract

Internet of everything (IoE)-based smart services are expected to gain immense popularity in the future, which raises the need for next-generation wireless networks. However, 5G and Beyond 5G (B5G) will be unable to provide the complete requirements of the Internet of Everything (IoE), even that 5G networks can support various IoE services, they might not be able to completely full-fill the requirements of novel applications. Moreover, in spite of the fact that 5G is still in the underlying phase of commercial scale, it is also look forward to the communication needs of the future information society and start the idea and technology research for the next generation mobile communication system. Therefore, there is a high demand for 6G. The 6G will revolutionize personal life, lifestyle, society, business and communication systems. It is a crucial time to envision the potential applications, techniques, use cases, and challenges of 6G technology. Noteworthy, 6G will create enormous research possibilities and enable many new technologies. Moreover, the 6G will be proven as a game changer paradigm in diverse fields. 6G wireless systems are envisioned to overcome 5G network limitations, a taxonomy based on key enabling technologies, use cases, emerging machine learning schemes, communication technologies, networking technologies, and computing technologies. These key enabling technologies will aim to compete challenges and issues in the way to 6G. These include terabit data transmission system, 3D networks paradigm, availability and reliability, intelligent radio and distributed AI. A 6G mobile network system requires to deliver extremely fast speed, increase capacity then non-proximity in order to support the likelihood of fresh applications, as vigorous medicine, computer disaster forecasting plus virtual reality (VR). 6G should promote wireless technologies such as the use an advanced frequency spectrum than preceding generations to advance the data throughput estimated at 100 to 1000 times quicker than 5G. 6G systems will let hundreds of GBs per second to connect to the second using broadband spectrum; for instance, the combined usage of a band from 1 to 3 GHz, a millimeter wave band (mm wave) (30 to 300 GHz) and a terahertz band (0.06 to 10 THz). In the spatial dimension, to benefit more from multi-channel, MIMO residue techniques (PM-MIMO), as the ultra-huge MIMO (UM-MIMO) for terahertz communication, can help hundreds or thousands of antennas to transmit / receive. 6G with Satellite Network The 6G mobile system for global coverage will be coordinated 5G mobile wireless system plus the satellite network. Finally, Cell less Architecture for 6G Networks following generation wireless networks have to assist an enormous figure of terminal users within minor geographical extents, and this will stretch increase to dense or ultra-dense placement of APs/BSs with overlapping coverage zones.