Interference Analysis and Performance Evaluation of 5G Flexible-TDD Based Dense Small-Cell System

The projected growth of mobile data traffic requires the 5G wireless systems to support at least 1000× larger area throughput than the existing 4G solutions. This requires ultra- dense local area networks combined with fast and flexible time division duplex based access to provide wide bandwidths for multi-gigabit peak data rates. In this paper, we focus on the system level performance characterization and evaluations of the recently proposed 5GETLA radio interface for centimeter-wave communications. We study the effects of interference tiers on the throughput and SINR distributions and show that broadcasted, omnidirectional information should be minimized and preferably combined with learning spectral reuse and interference canceling receivers. We also demonstrate the low latency provided by the new 5G radio interface design.