Development of a Radiowave Propagation Model for Hilly Areas

Achieving optimal performance is a paramount concern in wireless networks. One of the strategies is to use wireless empirical models to predict wireless link quality factors such as path loss and the received power in any given transmission domain with irregular terrain. Measurement results of signal strength in UHF band obtained in Idanre Town of Ondo State Nigeria were validated against theoretical estimations. Okumura-Hata model, COST231- Hata model and Egli model applicable for path loss prediction in area with high hill were examined. These models predictions were compared with predictions from measurements taken in Idanre to determine the path loss prediction error for each model. Consequently, modified COST231-Hata model was developed for path loss prediction in the hilly areas. The model developed has 6.02% error which made it applicable for hilly areas (Idanre)