Availability of 7 Km-Long Parallel 18 GHz Band and E-band Links for Multi Band Solutions
European Conference on Antennas and Propagation(2020)
摘要
E-band (70/80 GHz) backhaul links are nowadays available with multi-Gbps capacity. Unfortunately, the high attenuation due to rain is limiting the link lengths to about 2 km. One way to overcome this limitation is to set up the E-band link in some sort of carrier aggregation solution together with a conventional backhaul band, usually 18-23 GHz to guarantee availability of critical data transfer also during heavy rain. This study compares long term logging of 7 km-long parallel backhaul links with carrier frequency 18.6/19.6 GHz and 71.6/81.6 GHz. This summary includes a comparison with ITU recommendations and a discussion on which phenomena, more than precipitation, is influencing the availability of these links.
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关键词
Line-of-sight propagation,fixed service,measurements,rain attenuation
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