This paper presents path loss measurement and modeling for Lagos state
dense-urban (DU), urban (UR), sub-urban (SU) and non-urban (NU) G.S.M
environments. It was carried out with data collection through drive
testing using TEMS software in the chosen environments Lagos-Island(DU),
Surulere (UR), Lekki-Oniru (SU), Agbede-Ikorodu (NU), over a distance
of 0.5-10Km from Base station (BS) to Mobile station (MS) with
measurement taken at 0.5Km intervals for a period of 52 weeks. Relative
parameters like Rxlev, RSSI, Path loss were measured in all areas of
investigation under 2G and 3G frequencies of operation and twelve (12)
different sites location were covered and analysed. COST 231-Hata model
was used as reference model for path loss calculation of field data,
this was further adjusted to develop optimized models (tagged OMODEEN
models) for path loss prediction in all environments of study, which
shows results within 6dB acceptable range, hence recommended for
modeling in these environs and other similar G.S.M environments.
This study is one of very few studies which have investigated path loss
in classified environment. Effort was geared towards four chosen
environment in Lagos metropolitan terrain. A new model known as OMODEEN
was developed and can be used for specific environs. MATLAB was used to
develop graphical representation of the model.
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This study received no specific financial support.
The authors declare that they have no competing interests.
Wish to appreciate Dr. Femi Ipinnimo, Dr Sikiru A Adegoke, staffs of
the department, staffs of OMNICOM, and my excellent course mates for
their wonderful contributions to make this research a reality