Title :
Optimum hop length for millimeteric wave radio links in arid land climate
Author_Institution :
Sultan Qaboos Univ., Muscat, Oman
Abstract :
Reliability analysis of millimetric wave radio links operating in an arid climate are presented and used to derive the hop length versus fade margin charts. Long term rain and visibility data for Saudi Arabia, are used to determine rain and visibility statistics for various regions of the country. Based on the results of measured attenuation at 40 GHz in Riyadh, meteorological statistics are converted into excess attenuation due to rain, sandstorms and multipath fading. Finally, the total outage time due to the three phenomenon is depicted as a function of fade margin at various hop lengths. The result is a set of design charts which relate hop lengths, reliability objectives and fade margins for various climates
Keywords :
atmospheric electromagnetic wave propagation; attenuation measurement; fading; microwave links; microwave measurement; radiowave propagation; rain; 40 GHz; EHF; MM band; MM waveband; Riyadh; Saudi Arabia; arid land climate; fade margin charts; hop length; measured attenuation; meteorological statistics; millimeteric wave radio links; multipath fading; rain; rain data; rain statistics; reliability analysis; sandstorms; total outage time; visibility data; visibility statistics;
Conference_Titel :
Radio Relay Systems, 1993., Fourth European Conference on
Conference_Location :
Edinburgh
Print_ISBN :
0-85296-594-X
