| Autor: |
Ohaneme, C. O., Onoh, G. N., Azubogu, A. C. O., Idigo, V. E., Obinna, Nnabuenyi |
| Předmět: |
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| Zdroj: |
IUP Journal of Science & Technology; Dec2011, Vol. 7 Issue 4, p46-59, 14p, 2 Charts, 4 Graphs |
| Abstrakt: |
Over the past two years, there has been a massive public outcry over the deteriorating Quality of Service (QoS) in the operations of mobile cellular companies in Nigeria. One of the Key Performance Indices (KPI) for QoS monitoring is the drop call probability. Its minimization is the typical result of many optimization procedures applied to several service areas. The maximization of service coverage area and network usages, the minimization of interference and congestion, the optimum traffic balancing among the different frequency layers (900 MHz and 1,800 MHz in GSM standard) are some of the optimizing procedures used in minimizing drop call probability. This work presents the characterization of channels for the analysis of call drop probabilities in well-established cellular networks. The analysis is entirely statistical; all the data set to be fitted was provided by the Operation and Maintenance Center (OMC) of ZAIN Nigeria, a cellular network provider. An analytical model is developed for the real traffic data to predict the drop call probabilities in a cell. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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