Modelling Telecommunication Pathway in Nigeria

Modelling Telecommunication Pathway in Nigeria

Eno E. E. AkarawakIsmaili I. Adeleke 

Department of Mathematics, Faculty of Science, University of Lagos, Akoka, Lagos, Nigeria

Department of Actuarial Science & Insurance, Faculty of Business Administration, University of Lagos, Akoka, Lagos, Nigeria

Corresponding Author Email: 
eakarawak@unilag.edu.ng; iadeleke@unilag.edu.ng
Page: 
1-15
|
DOI: 
https://doi.org/10.18280/ama_d.220101
Received: 
October 2016
|
Accepted: 
30 May 2017
|
Published: 
31 December 2017
| Citation

OPEN ACCESS

Abstract: 

The aim of this work is to model the pathway from caller to recipient of GSM telecommunication in Nigeria, with a view to produce a model that can help reduce the problem of drop calls experienced in the industry. Our dependent variable was total successful calls against 9 explanatory variables. An initial multiple linear regression produced low R2 of 25.5%. Diagnostics interventions of some transformations with removal of leverage points improved the R2 to 82%. Two model selection techniques, Mallow’s Cp and adjusted R2 were used to obtain the best parsimonious model, which contained 7 explanatory variables. The results show that the main variables that explain total successful call are Percentage drop calls, Proportion of transmission failure, Call traffic Congestion, Control channel failure, Earlang, P_HR and Availability. We, therefore, advise telecommunication industries in Nigeria to use the model to counteract the problem of drop calls.

Keywords: 

Telecommunication pathway, drop calls, Box-Cox transformation, Mallow’s Cp, model selection.

1. Introduction
2. Relevant Literature on Model Selection
3. Data Description and Exploration
4. Methodology
5. Results and Discussion
6. Conclusion
  References

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