The need for excellent delivery in wireless communication and the demand for high data rate transmission have resulted in the investigation of propagation mechanisms for higher-order frequencies, with enormous prospects in increasing data rate with respect to higher bandwidth. Deficiencies in the wireless channel such as poor signal quality, blocked calls, dropped calls, interference problems, etc make it eminent for the development of path loss prediction and estimation models that predict the signal strength of any given terrain. This research is focused on determining the mathematical model that characterizes the propagation environment of a dense urban area in Lagos, Nigeria (Festac town). The RSS measured was used to characterize the environment and a path loss model was developed for both UMTS and LTE in the test environment as ???????? (d) = 77 + 32 ???????????? (????) and ???????? (????????) = 81 + 26 ???????????? (????) respectively. The path loss model developed was tested and its goodness of fit (R^2) was found to be 0,83 for both UMTS and LTE network respectively. This serves as a basis for predicting the path loss of measured data in the environment under research with greater precision and helps in optimizing the overall performance of the wireless mobile network in proffering seamless services in Lagos, Nigeria.

Path-loss, Channel Characterization, LTE, UMTS, Lagos

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