Simulation Macromodel of Subscriber’s Behavior in Cellular Communication Network

2016;
: pp. 274 - 284
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University

The paper proposes the simulation macro model of subscribers’ behavior in cellular communications network, considering its structure, peculiarities of the subscribers’ movement and their activity, including the requests generation process by subscribers’ terminals. Model input obtains the set of cellular structure parameters, simulation interval, parameters of the user’s requests flow, number or caller groups by moving speed and maximum possible speed of subscribers. The results of the simulation are: generated according to the set rules cellular structure of the base stations, which are located in the center of hexagonal cells, the capacity of the network in terms of calls, generated subscriber’s requests in the range of simulation interval, characteristics of their processing and the number of non-processed requests in the reason of network congestion considering the subscribers movement. The continuous hexagonal coverage of a given area with lowest possible ceiling and the maximal distances between neighboring base stations according with their cell ranges is received based on the proposed method of forming the cellular structure of mobile network received. It shows the number of base stations, their location. Based on subscriber’s movement simulation we define a set of coordinates of each subscriber location at any simulation step. These coordinates depict different scenarios of subscribers moving that consist of individual trajectories for each subscriber considering their personal speed and movement direction. The amount of required equipment to service the subscriber load entering the coverage zone may be calculated based on simulation results.

1. Alatishe S. Adeyem and Dike U. Ike (2013), “Review of Load Balancing Techniques in 3GPP LTE System”, International Journal of Computer Science Engineering (IJCSE), vol. 2 no. 04, pp. 112–116. 2. Tonguz, O. K., and Yanmaz, E. (2008), “The mathematical theory of dynamic load balancing in cellular networks”, IEEE Trans. on Mobile Computing, vol. 7, no. 12, pp. 1504-1518. 3. Eklundh, B. (1986), “Channel utilization and blocking probability in a cellular mobile telephone system with directed retry”, IEEE Trans. Comm., vol. 34, no. 3, pp. 329–337. 4. Jiang, H. and Rappaport, S. S. (1994), “CBWL: A new channel assignment and sharing method for cellular communication systems”, IEEE Trans. Vehicular Technology, vol. 43, no. 4, pp. 313–322. 5. Das, S., Viswanathan, H. and Rittenhouse, G. (2003), “Dynamic load balancing through coordinated scheduling in packet data systems”, IEEE Proc. INFOCOM. 6. Bu, T., Li, L. and Ramjee, R. (2006), “Generalized proportional fair scheduling in third generation wireless data networks”, in IEEE Proc. INFOCOM. 7. Son, K., Chong, S. and Veciana, G. (2009), “Dynamic association for load balancing and interference avoidance in multi-cell networks,” IEEE Trans. on Wireless Communications, vol. 8, no. 7, pp. 3566–3576. 8. Altrad, O. and Muhaidat, S. (2013), “Load Balancing Based on Clustering Methods for LTE Networks” Cyber Journals: Multidisciplinary Journals in Science and Technology, Journal of Selected Areas in Telecommunications (JSAT), vol. 3, issue 2. 9. Wang, H., Ding, L., Wu, P., Pan, Z., Liu, N. and You, X. (2010), “Dynamic Load Balancing and Throughput Optimization in 3GPP LTE Networks,” IWCMC, June 28-July 2 2010, Caen, France. 10. Bak, R. I, Chaikovskyi, I. B and Burachok, R. A. (2013), “Method of Subscriber Network Load Balancing in Celular Network”, Visnyk Natsionalnoho Universytetu “Lvivska Politekhnika”. Seriia : Radioelektronika ta Telekomunikatsii, no. 766, pp. 110–115. 11. Romanchuk, V.I., Lavriv, O.A., Polishchuk, A.V. and Bak, R.I. (2011), “Analysis of traffic’s probability characteristics of infocommunication corporate network” Zbirnyk naukovykh prats UAD, issue 26, pp. 145–151. 12. Bak, R. I., Chaikovskyi, I. B., Shyika, Ya. V. and Hnatchuk, M. M. (2012) “Method of increasing the radioresource availability of mobile communication system in overload mode”, Naukovo-metodychna konferentsiia “Suchasni problemy telekomunikatsii i pidhotovka fakhivtsiv v haluzi telekomunikatsii”, 7–9 November 2012, Lviv, pp. 89–91.