A Survey of Antenna and User Scheduling Techniques for Massive MIMO-5G Wireless System

Massive MIMO is a promising candidate for 5G future wireless communications system having ability to drastically scale-up the ergodic sum-rate and simultaneously cut off total radiated power by thousand times. Different antenna selection and scheduling, user selection and scheduling, and joint antenna and user scheduling algorithms that have been employed with massive MIMO systems has reported in this paper. A few number of research concept has been discussed in literature section related to performance analysis of massive MIMO regime associated with large number of antenna scheduling, user scheduling, and combined antenna and user scheduling algorithm. The prime goal of this survey paper is to provide a comprehensive overview of current and emerging research topics e.g., scheduling of antennas and users in massive MIMO. Last 5 years of research contributions has presented in this survey report with a key concentration on implementation of antenna and user scheduling algorithm in massive MIMO systems. Specifically, antenna selection and scheduling, user scheduling, and combined antenna and user scheduling algorithm have addressed. Moreover, different selection algorithms that deal with efficient utilization of power and the most scarcity thing i.e., bandwidth in massive MIMO system has reported. The discussed scheduling algorithms play a pivotal role for selecting the antennas and users in such a fashion that system sum rate has maximized. Furthermore, the list of references serves as a good roadmap for start-up and consequently motivates upcoming researchers to work in this emerging field.