Mobility model

Mobility models represent the movement of mobile user, and how their location, velocity and acceleration change over time. Such models are frequently used for simulation purposes when new communication or navigation techniques are investigated. Mobility management schemes for mobile communication systems make use of mobility models for predicting future user positions.

Background and terminology

In the study of a new Mobile ad hoc network protocol, it is important to simulate the protocol and evaluate its protocol performance. Protocol simulation has several key parameters, including mobility model and communicating traffic pattern.^[1] Mobility models characterize user movement patterns, i.e. the different behaviors of subscribers. Traffic models describe the condition of the mobile services.

Mobility models

For mobility modelling, the behaviour or activity of a user’s movement can be described using both analytical and simulation models. The input to analytical mobility models are simplifying assumptions regarding the movement behaviors of users. Such models can provide performance parameters for simple cases through mathematical calculations. In contrast, simulation models consider more detailed and realistic mobility scenarios. Such models can derive valuable solutions for more complex cases. Typical mobility models include

• Brownian model
• random waypoint model
• random walk model
• random direction model
• random Gauss-Markov model
• Markovian model
• incremental model,
• mobility vector model
• reference point group model (RPGM)
• pursue model
• nomadic community model
• column model
• fluid flow model
• exponential correlated random model
• map based model
• Manhattan mobility model
• Rush hour (human) traffic model
• Mission critical mobility model
• obstacle mobility model
• smooth random mobility model
• post disaster mobility model

and others

Language for mobility model definition

• Benchaïb, Yacine; Chaudet, Claude (June 2012). SILUMOD: A Simulation Language for User Mobility Models Definition in Multihop Networks. the First ACM/SIGPLAN Asia-Pacific Programming Languages and Compilers Workshop (APPLC), june 2012, Beijing, China.

See also

• Mobility management
• Mobile ad hoc network (MANET)
• Radio frequency propagation models
• Network simulation
• Network simulator
• Network traffic simulation
• Radio frequency propagation model
• Radio resource management (RRM)
• Traffic generation model

References

• Sun, Jun-Zhao and; Jaakko Sauvola (2002). Mobility and mobility management: a conceptual framework (PDF). Proc. 10th IEEE International Conference on Networks. Retrieved 23 February 2009.

• Bai, Fan; Helmy, Ahmed (2006). "A Survey of Mobility Models in Wireless Adhoc Networks" (PDF). (Chapter 1 in Wireless Ad Hoc Networks. Kluwer Academic. 2006. Based on result of Google Scholar search. Additional work needed to identify this book.)
• J. Kammann, M. Angermann and B. Lami, A New Mobility Model Based on Maps, Proceedings of the 58th IEEE Semiannual Vehicular Technology Conference (VTC Fall 2003), Orlanda, USA, October 6-9, 2003
• W.K.G. Seah et al., "Mobility Modeling of Rush Hour Traffic for Multihop Routing in Mobile Wireless Networks", Proceedings of IEEE 64th Vehicular Technology Conference (VTC 2006), 25-28 Sept. 2006, Montreal, Quebec, Canada.

1. Bai and Ahmed