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International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Saturday 26 May 2018

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Dynamic Channel Assignment technique for minimizing Congestion in a Mobile radio Network


Volume 26, Issue 2, September 2016, Pages 634–649

 Dynamic Channel Assignment technique for minimizing Congestion in a Mobile radio Network

Osita Ngozika Ann, Michael Onyeamaechi Alor, and Gregory Nwachukwu Onoh

Original language: English

Received 23 August 2016

Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


Congestion in mobile radio network has been a great challenge due to increase in demand by the mobile users on the limited available channels. Dynamic channel assignment technique was employed in this work to minimize congestion in the network. Twelve base stations were studied and analyzed using some telecommunication traffic Key performance indicators (KPI) such as Call Completion Rate (CCR), Grade Of Service (GOS) and Channel Utilization Percentage (CUP). The result of the analysis was compared with the Nigeria Communication Commission (NCC) regulatory standards. It was discovered that call completion rate (CCR) of all the Base Transceiving Stations (BTSs) investigated were not in accordance with NCC standard. Math lab program for Erlang B model used to evaluate the call congestion and call blocking probability on the network was developed and used in observing the system. The result of analysis of the system based on simulation of Erlang B model showed that the call congestion probability in some BTS were approximately equal to zero while the others were highly congested with higher probability of calls being blocked when fixed channel assignment technique was implemented. The model for the chosen technique for this work (Dynamic Channel Assignment Technique ) was used to simulate the 12 base stations investigated. The result showed lower probability of call congestion when compared with those BTSs with higher probability of call congestion. Thus congestion was minimized and more calls accommodated when compared with fixed channel assignment technique. Algorithm for implementing the technique was developed and modeled using flow graph.

Author Keywords: Channel allocation, key performance indicators, spectrum utilization, Telephone traffic congestion, telephone traffic load.


How to Cite this Article


Osita Ngozika Ann, Michael Onyeamaechi Alor, and Gregory Nwachukwu Onoh, “Dynamic Channel Assignment technique for minimizing Congestion in a Mobile radio Network,” International Journal of Innovation and Scientific Research, vol. 26, no. 2, pp. 634–649, September 2016.