ABSTRACT

This study investigated the Development of Radio Propagation pathloss model for Abia state GSM Environment. the inspiration for the study came from the complaint of some electronic communication professionals and the public that transmission services in the study area were unsatisfactory: using three extant propagation pathloss models; namely Okumuara- Hata , Cost 231 and Free space pathloss models were used to investigate the effects of pathloss on service Quality.to properly situate the work and ascertain the Knowledge gap it will fill, relevant literature was reviewed .Experimental setup   were carried out for data collections through a drive test, computer simulations using MATLAB  were done.  results of the analysis were carefully outlined in tables and figures, based on the mathematical models, of the test environment at 900MHz and 1800MHz were carried out for Abia stae GSM Environment. The results show that the measured path loss has low path loss value variations with that of different path loss models used in this study. The average path loss for Ubakala, Umuahia and Aba are 143.09dB, 140.08dB and 151.45dB respectively while the average path loss for Free Space Path Loss model, Okumura-Hata model and COST-231 model are 315.13dB, 371.96dB and 464.93dB which are suitable for radio propagation path loss model development for Abia State GSM Environments using the three extant models mentioned above due to differences in environment terrain under study.