Title
Spatial modeling of the traffic density in cellular networks
Abstract
Modeling and simulation of a cellular network typically assumes that the target area is divided into regular hexagonal cells and mobile stations (MSs) are uniformly scattered in each cell. This implies a statistically uniform distribution of traffic load over space, but in reality the spatial traffic distribution is highly non-uniform across different cells, which calls for actual spatial traffic models. In this article, we first present the analysis of traffic measurements collected from commercial cellular networks in China, and demonstrate that the spatial distribution of the traffic density (the traffic load per unit area) can be approximated by the log-normal or Weibull distribution depending on time and space. Then we propose a spatial traffic model which generates large-scale spatial traffic variations by a sum of sinusoids that captures the characteristics of log-normally distributed and spatially correlated cellular traffic. The proposed model can be directly used to generate realistic spatial traffic patterns for cellular network simulations, such as performance evaluations of network planning and load balancing.
Year
DOI
Venue
2014
10.1109/MWC.2014.6757900
IEEE Wireless Commun.
Keywords
Field
DocType
traffic load,spatial traffic models,traffic measurements analysis,cellular network simulation,cellular radio,statistically uniform distribution,spatially correlated cellular traffic,traffic density,china,spatial traffic distribution,log-normally distributed cellular traffic,spatial traffic patterns,hexagonal cells,weibull distribution,log-normal distribution,commercial cellular networks,network planning,spatial modeling,log normal distribution,performance evaluation,telecommunication traffic,cellular network modeling,load balancing,performance evaluations,spatial traffic model,mobile stations,large-scale spatial traffic variations,graphical models,distribution functions,correlation
Traffic generation model,Network planning and design,Computer science,Load balancing (computing),Computer network,Cellular traffic,Uniform distribution (continuous),Weibull distribution,Cellular network,Network traffic simulation
Journal
Volume
Issue
ISSN
21
1
1536-1284
Citations 
PageRank 
References 
48
2.56
4
Authors
6
Name
Order
Citations
PageRank
Dongheon Lee1503.99
Sheng Zhou21627129.20
Xiaofeng Zhong314329.85
Zhisheng Niu42561200.04
Xuan Zhou517411.08
Honggang Zhang61223108.55