Waveform design priorities in different wireless communications systems for 5G beyond

It is thought that a huge inclusive system will be achieved which includes many different wireless communications systems while 5G and beyond networks are being developed. These communications systems which can be classified according to different system requirements show a characteristic converging to a generic but flexible structure. In this study, waveform design priorities of various wireless communications systems are analyzed which include aeronautical communications, millimeter wave communications, cognitive radio, machine-to-machine communications, device-to-device communications, and vehicle-to-vehicle communications under the inclusive structures of 5G and beyond. Besides, some considerations are presented about the current waveform designs which allow flexible operations and have hybrid structures with adaptive properties for the inclusive structures of 5G beyond.