A study of radio transmission in cellular telephone network / Aida Razana Omar

Wireless Communications, particularly cellular Communications seem to be moving forward at ferocious pace. Communications engineers are to come up with more innovative solutions to meet the demands of global Communications and must therefore be aware of factors such as performance and coverage so that high grades of service can be maintained. The Global System of Mobile Communications (GSM) was designed to be a global Standard for digital cellular Communications and for much of Asia and Europe at least, this aim has been met. Project work covered in this report brings together the results of detailed measurement and research work with the objective of comparison study of propagation loss versus distance between measured, predicted and drive test collected data in cellular telephone network environment. Aiso comparison the signal strength between using the omnidirectional antenna and sectorised antenna. The comparison between has been made between Extended Total Access Communication System (ETACS) by using the Mobile Telephone Model SE 925 and calculated by Okumura-Hata's formula.