Title :
A Framework Enabling Spatial Analysis of Mobile Traffic Hot Spots
Author :
Klessig, Henrik ; Suryaprakash, Vinay ; Blume, Oliver ; Fehske, Albrecht ; Fettweis, Gerhard
Author_Institution :
Dept. of Mobile Commun. Syst., Univ. of Technol. Dresden, Dresden, Germany
Abstract :
An enormous increase in data traffic demanded by mobile users calls for efficient deployment strategies such as multi-layer heterogeneous networks. However, placing small cells at the desired locations to offload as much traffic as possible from overlaying macro cells is a crucial task. In this regard, geo-location and user equipment positioning techniques help obtain spatial distributions of user locations and their respective traffic volumes. In this paper, we provide a tool capable of reducing errors that stem from spatial discretization of traffic data and that can autonomously detect hot spots given a certain threshold. Based on geo-located traffic in a 3G network in a dense urban city, we find that traffic in the area is approximately log-normally distributed and that the size of traffic hot spots are approximately Weibull distributed. Based on our statistical findings, we observe that utilizing 4 small cells per km2 covering 3.2% of the total area and around 34% of the total traffic volume is a very meaningful deployment strategy; however, deploying more small cells in larger hot zones becomes increasingly costly in terms of the ratio of area covered and traffic demand serviced.
Keywords :
approximation theory; mobile communication; telecommunication traffic; 3G network; Weibull distributed approximation; data traffic; dense urban city; desired locations; framework enabling spatial analysis; geolocated traffic; geolocation positioning techniques; mobile traffic hot spots; mobile users calls; multilayer heterogeneous networks; overlaying macro cells; spatial discretization; spatial distributions; traffic demand; traffic volumes; user equipment positioning techniques; Base stations; Cities and towns; Histograms; Interpolation; Mobile communication; Mobile computing; Spatial resolution; Mobile data traffic; hot spots; network deployment; network planning; small cells; traffic analysis;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/LWC.2014.2349520