Flowchart for Call Management Scheme through Users Mobility Control

Isaac A. Ezenugu, James Eke, G. N. Onoh


The tremendous popularity of wireless technologies during the last decade has created a considerable expansion of wireless networks both in size and use. These facts, together with a great variety of mobile devices and numerous different services that are becoming increasingly resource-demanding, have attracted the attention of many researchers into the area of radio resource planning and optimization. In wireless cellular networks, it is important to develop model or schemes to facilitate effective and efficient utilization of the limited radio resources. In this paper, flowchart for call management scheme through users mobility control is presented. The flowchart along with the analytical expressions pertaining to the scheme are presented and discussed. Particularly, the scheme improves channel allocation to handoff calls for mobile users by considering the direction of their movement. The direction of mobile users with respect to a base station is captured in terms of mobility factor.  The mobility factor increases as the user moves closer to a base station. In this case, even if the signal strength of ongoing call of a mobile user is sufficient, it channel allocation can still be retained if its mobility factor is relatively high. In this case, the mobile user will be handed off to the base station it has higher mobility factor value.


Signal Quality; Prioritized Handoff; Call Duration; Call Arrival Rates; the Mobility Factor; Radio Resource Management

Full Text:



El-Dolil, S. A., Al-Nahari, A. Y., Desouky, M. I. & Abd El-Samie, F. E. ( 2008). Uplink Power Based Admission Control in Multi-Cell WCDMA Networks with Heterogeneous Traffic: Progress in Electromagnetics Research B, 1, 115–134.

Shristop L., Marco L., & Axel T., (2004). “Adaptive Call Admission Control for QoS/ Revenue Optimization in CDMA Cellular Networks”, Kluwer Academic Publishers, Wireless Networks 10, 457-472.

Fang, Y. & Zhang, Y. (2002). Call Admission Control Schemes and Performance Analysis in Wireless Mobile Networks: IEEE Transactions on Vehicular Technology, 51(2).

Felipe A., Genaro H. & Andrés R. (2011). Call-Level Performance Sensitivity in Cellular Networks, Cellular Networks - Positioning, Performance Analysis, Reliability, Dr. Agassi Melikov (Ed.), ISBN: 978-953-307-246-3, InTech.

Ekiz, N., Salih, T., Küçüköner, S. & Fidanboylu, K. (2005). An Overview of Handoff Techniques in Cellular Networks: International Journal of Information Technology, 2 (2), 132-136.

Fang, Y. (2005). Performance Evaluation of Wireless Cellular Networks under More Realistic Assumptions: Wireless Communications and Mobile Computing Wirel. Commun. Mob. Comput.; 5:867–885 Published Online In Wiley Interscience (www.interscience.wiley.com). DOI: 10.1002/wcm.352.

Boggia, G., Camarda, P., D’Alconzo, A., De Biasi, A. & Siviero, M. (2005). Drop Call Probability in Established Cellular Networks: from Data Analysis to Modeling: DEE – Politecnico di Bari, Via E.Orabona, 4 – 70125 Bari (Italy), Proc. IEEE VTC Spring 2005,5, 2775- 2779.

Hagglund, F. (2005). Improved Power Control For GSM/EDGE: Masters Thesis. Lulea University of Technology, Luluea.

Dajab, D.D. & Parfait N. (2010). Consideration of Propagation Loss Models for GSM during Harmattan in N’djamena (Chad). International Journal of Computing and ICT Research, 4, (1), 43-48.

Zreikat, A., & Al-Begain, K. (2003). Simulation of 3G Networks in Realistic Propagation Environments. Mobile Computing and Networking Research Group, I.J. of Simulation, 4 (3&4): 21-30.

Mishra, A. R. (2004). Fundamentals of Cellular Network Planning & Optimization, England: John Wiley & Sons, Ltd. ISBN: 0-470-86267-X.

Nawrocki, M.J., Dohler, M. & Aghvami A. H., (2006). Modern Approaches to Radio Network Modeling and Planning –Understanding UMTS Radio Network, Modeling, Planning and Automated Optimisation: England: John Wiley & Sons Ltd.

Zhang, M. & Lea, C. T. (2006). Impact of Mobility on CDMA Call Admission Control. IEEE Transactions on Vehicular Technology, 55(6): 1908-1920.

Giambene, G. (2005). Queuing Theory and Telecommunications Networks and Applications: Rome: Springer Science+Business Media, Inc., pp. 238-400.


  • There are currently no refbacks.