A realistic mobility model for wireless networks of scale-free node connectivity

Authors:
Sunho Lim;Chansu Yu;Chita R. Das
Affiliations:
Department of Computer Science, Texas Tech University, Lubbock, TX 79409, USA.;Department of Electrical and Computer Engineering, Cleveland State University, Cleveland, OH 44115, USA.;Department of Computer Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA
Venue:
International Journal of Mobile Communications
Year:
2010

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Abstract

Recent studies discovered that many of social, natural and biological networks are characterised by scale-free power-law connectivity distribution. We envision that wireless networks are directly deployed over such real-world networks to facilitate communication among participating entities. This paper proposes Clustered Mobility Model (CMM), in which nodes do not move randomly but are attracted more to more populated areas. Unlike most of prior mobility models, CMM is shown to exhibit scale-free connectivity distribution. Extensive simulation study has been conducted to highlight the difference between Random WayPoint (RWP) and CMM by measuring network capacities at the physical, link and network layers.