Measurements to assist access network design with fixed WiMAX in urban environment

摘要

WiMAX is a wireless MAN technology designed to diminish the broadband gap in rural areas and to provide the last mile solution. Besides, the WiMAX also ensures efficient access method in urban environment due to the good NLOS behavior of the OFDM transmission technology. On the other hand, network design with WiMAX in urban environment is a rather challenging task. Our work is focused on the examination of WiMAX transmissions in urban area. We performed preliminary laboratory tests and extensive field measurements; some of the results are presented in this paper. The measurements were influenced by several factors including the radio environment, device arrangement and configuration and also transmission protocols, among others. Our conclusion is that careful design is required and several parameters should be considered to ensure optimal solution in a given environment.