Performance Analysis of Small Cells' Deployment under Imperfect Traffic Hotspot Localization

Abstract

Heterogeneous Networks (HetNets), long been considered in operators' roadmaps for macrocells' 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 operators' 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.

arXiv commentThis article is already published in IEEE Global Communications Conference (GLOBECOM) 2015

References in corpus (4)

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• Downlink MIMO HetNets: Modeling, Ordering Results and Performance Analysis
• On the Analytical Tractability of Hexagonal Network Model with Random User Location
• Traffic Hotspot localization in 3G and 4G wireless networks using OMC metrics