The 5G radio-access technologies

Abstract

With the start of commercial services using 4th generation cellular systems, we are enjoying full multi-media services using smart phones, and our life style is completely changed from that we had in about 10 years before. Now, we are facing a start point of new era, which is called the 5 th generation systems. Although discussion on designing the 5 th generation systems is not started yet, most of the engineers believe that many revolutional functionality may be supported by the 5G systems compared to the previous generations. Some examples are support of much higher throughput, flexible support of internet of things (IoT), and comfortable control of our social environments. Seiichi Sampei (Fellow) received the B.E., M.E. and Ph.D. degrees in electrical engineering from Tokyo

Power allocation with fairness for non‐orthogonal multiple access systems

“…Afterwards, due to the complexity of message detection and error propagation of this approach, user pairing/grouping was proposed, e.g. [6, 7]. The proper approach for selecting users that are grouped in a single channel is referred to as user pairing [6, 8].…”