A Survey of Beam and Power Allocation Techniques for Multiuser Massive MIMO System

Massive MIMO is a key technology for next generation communication system, it can greatly increase the system sum-rate while the radiation power is significantly reduced. Different beam allocation, beam training, power allocation, and joint beam and power allocation algorithms have been employed with multiuser massive MIMO systems. The goal of this article is to present an overview of current research topics and future trends about beam and power allocation in massive MIMO. Specifically, beam selection, beam training, power allocation, and joint beam and power allocation algorithm have addressed. The discussed allocation schemes play a key role for allocating the beams and powers in such a fashion that system data rate has maximized and power consumption has decreased. Furthermore, the list of references is a good incentive for future researchers to work in this emerging field.