Performance comparison of scheduling algorithms for MU-MIMO systems

Scheduling more than one user could increase system capacity of multi antenna systems. Present article reviews Multi User MIMO (MU-MIMO) communication from scheduling perspective, discussing performance gains in terms of sumrate, fairness, and computational complexity. Several scheduling techniques reported for MU-MIMO based on different algorithms are reviewed, along with partial channel state information and full channel state information. Moreover, the selection procedure of first user in leakage based and interference based scheduling algorithms is analyzed. The results show that random selection of first user does not effect the performance and have relatively less computational complexity.