Performance Analysis of Small Cells Deployment under Imperfect Traffic Hotspot Localization Heterogeneous Networks (HetNets), long been considered in operatorsu0027 roadmaps for macrocellsu0027 network improvements, still continue to attract interest for 5G network deployments. Understanding the efficiency of small cell deployment in the presence of traffic hotspots can further draw operatorsu0027 attention to this feature. In this context, we evaluate the impact of imperfect small cell positioning on the network performances. We show that the latter is mainly impacted by the position of the hotspot within the cell: in case the hotspot is near the macrocell, even a perfect positioning of the small cell will not yield improved performance due to the interference coming from the macrocell. In the case where the hotspot is located far enough from the macrocell, even a large error in small cell positioning would still be beneficial in offloading traffic from the congested macrocell.

Capacity optimization of an actual HetNet deployment with applications to 5G Capacity optimization techniques in HetNets will be essential for the efficient deployment 5G networks. Network operators face important challenges estimating expected performance during the planning stage of the HetNet. In particular, it is difficult to accurately model and predict the performance of the network due to the complexity of actual load conditions, traffic patterns and user behavior. In this paper, we study and analyze the performance of an actual LTEA HetNet deployment subject to different load and interference levels. As opposed to most of the published work in this area that relies on simulated results subject to simplified conditions, this work is based on measurements from a live HetNet. We study the performance of sectorization (i.e. cell splitting) and the application of interference cancellation techniques (e.g. Almost Blank Subframes  ABS) as a way to optimize network capacity. Key performance indicators such as signaltointerferenceplusnoise ratio, reference signal received power and downlink data rate are analyzed.