Evaluation and Analysis of 3G Network in Lagos Metropolis, Nigeria

L.A Akinyemi; N.T Makanjuola; O.O Shoewu; F.O Edeko

doi:10.12691/iteces-2-3-1

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Evaluation and Analysis of 3G Network in Lagos Metropolis, Nigeria

L.A Akinyemi¹, N.T Makanjuola¹, O.O Shoewu^1,, F.O Edeko²

¹Department of Electronic &Computer Engineering, Faculty of Engineering, Lagos State University, Epe Campus

²Department of Electrical and Electronic Engineering, Faculty of Engineering, University of Benin, Edo State

Abstract

1. Introduction

2. Investigated Area in the Study

3. Measured Parameters in the Study

4. Methodology

5. Analysis of Results

6. Graphical Analysis of Results

7. Discussion of Results

8. Conclusion

References

Abstract

This paper presents an evaluation and analysis of 3G network in metropolitan area in Lagos, Nigeria. It was carried out with the collection of data through drive testing of which five parameters were analysed which are Rscp (Received signal code power), Ec/No, SQI (Speech quality index), Tx power (Transmitting power) and path loss. In this paper, ten (10) different site locations were covered and analysed. It was deduced that the RSCP range of -60 to 0 (db) covers just 25% while the Ec/No range of -8 to 0 covers 23% of the total coverage area both of which fall below the 75% being stipulated by the Nigeria Communication Commission (NCC) of the total coverage area. The transmitting power is even worse with analysis showing the transmitting power of most of the base stations in the area with a very low value and likewise the Speech quality index. Two common path loss models COST 231 HATA and OKUMURA-HATA were used. More so, the COST 231 HATA model yielded the value for the path loss ranges from 84.50≤152.33 and that of Okumura ranges from 79.0000 ≤ 150.00 with distance from 200km to 1400km having an interval of 200km to another. However, of the two models, COST 231 HATA appears to be the most suitable for this area due to its better accuracy when both were compared with the measured values from the field. The Root Mean Square Error differences (RMSE) differences of the path loss models were calculated and compared with all the sites. Site Identification Number (ID) Ulag5130-Ulag3131 was considered to have the least error rate of 4.7018 and 7.9396 respectively. The analysis of the work obtained from this area can be used as a platform and benchmark to aid in the system optimization process for improved performance for service providers in other metropolitan areas in Nigeria.

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Keywords: Received Signal Code Power (RSCP), Ec/No, Transmit Power, Speech Quality Index (SQI), path loss, drive test, sites

International Transaction of Electrical and Computer Engineers System, 2014 2 (3), pp 81-87.
DOI: 10.12691/iteces-2-3-1

Received April 17, 2014; Revised April 21, 2014; Accepted April 28, 2014

Cite this article:

Akinyemi, L.A, et al. "Evaluation and Analysis of 3G Network in Lagos Metropolis, Nigeria." International Transaction of Electrical and Computer Engineers System 2.3 (2014): 81-87.

Akinyemi, L. , Makanjuola, N. , Shoewu, O. , & Edeko, F. (2014). Evaluation and Analysis of 3G Network in Lagos Metropolis, Nigeria. International Transaction of Electrical and Computer Engineers System, 2(3), 81-87.

Akinyemi, L.A, N.T Makanjuola, O.O Shoewu, and F.O Edeko. "Evaluation and Analysis of 3G Network in Lagos Metropolis, Nigeria." International Transaction of Electrical and Computer Engineers System 2, no. 3 (2014): 81-87.

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1. Introduction

The last few years witnessed a phenomenal growth in the wireless industry, both in terms of mobile technology and its subscribers. There has been a clear shift from fixed to mobile cellular telephony, especially since the turn of the century ^[2].

By the end of 2010, there were over four times more mobile cellular subscriptions than fixed telephone lines. Both the mobile network operators and vendors have felt the importance of efficient networks with equally efficient design. This resulted in NetworkPlanning, analysis and optimization of related services coming in to sharp focus ^[8]. With all the technological advancement, and the simultaneous existence of 2G and 3G networks, the impact of services on network efficiency has become even more critical. Many more designing scenarios have rapidly developed with not only 2G networks but also with the evolution of 2G to 3G networks and now to 4G ^[2].

2. Investigated Area in the Study

Figure 1. Longitude and latittude of covered area

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Evaluation and Analysis of 3G Network in Lagos Metropolis, Nigeria

Science and Education Publishing

Evaluation and Analysis of 3G Network in Lagos Metropolis, Nigeria

Abstract

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Cite this article:

1. Introduction

2. Investigated Area in the Study

3. Measured Parameters in the Study

4. Methodology

5. Analysis of Results

Table 1. Colour and Signal Strength Indication of RSCP

Table 2.Colour and Signal Strength Indication of Tx Power

Table 3. Colour and Signal Strength Indication of SQI

Table 4. Colour and Signal Strength Indication of Ec/No

Table 5. Comparison of measured and modeled pathloss values

6. Graphical Analysis of Results

7. Discussion of Results

8. Conclusion

References

Pages

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