Authors : Virginia Chika Ebhota, Joseph Isabona and Viranjay M. Srivastava
Abstract: In this contribution, the basic propagation loss models which consist of the Hata Model, COST 231 Hata Model, Walfisch-Ikegami Model and Lee Model have been investigated for proper planning of LTE networks in different radio signal propagation environments. Each of the models were studied and compared under the variation of Transmitter-Receiver (T-R) distance, heights of Mobile Station (MS) and Base Station (BS) antenna and transmitting frequency via. extensive computer simulations. The results indicate that path loss increases as the link distance increases due electromagnetic energy spreading and attenuation by different radio propagation mechanisms. As the operating frequency was increase from 1800-2600 MHz, the path loss also increases due to decrease in antenna aperture and decrease in radio signal wavelength. Moreover, we observed a noticeable reduction in path losses as both the transmitter antenna height and receiver antenna height were raised from from 30-70 m and from 1.5-5 m, respectively. Finally, as the receiving antenana height increases, path loss due building roof top to street diffraction reduces.
Virginia Chika Ebhota, Joseph Isabona and Viranjay M. Srivastava, 2018. Modelling, Simulation and Analysis of Signal Pathloss for 4G Cellular Network Planning. Journal of Engineering and Applied Sciences, 13: 1907-1918.