Title :
Rain attenuation characteristics on radio links
Author :
Manabe, Toshihiro ; Yoshida, Teruaki
Author_Institution :
NTT Adv. Technol. Corp., Kanagawa, Japan
Abstract :
This paper describes the rain attenuation characteristics of radio links and the possibility of outage free links. Since 1988, the NTT has been conducting continuous rain attenuation measurements on experimental radio links. The experiments have been carried out in Tokyo. The measured frequencies are 15, 18, 20 and 26 GHz with transmission distances of 0.75, 2.8, 6 and 9 km. Rain attenuation characteristics are measured with 0.1 sec time accuracy. Field trial results show that the measured rain attenuation distribution has a maximum value, and radio links with fading margins that exceed the maximum rain attenuation become outage-free
Keywords :
attenuation measurement; electromagnetic wave absorption; fading; microwave links; microwave propagation; rain; 0.75 km; 15 GHz; 18 GHz; 2.8 km; 20 GHz; 26 GHz; 6 km; 9 km; NTT; Tokyo; experimental radio links; fading margins; field trial results; maximum rain attenuation; measured rain attenuation distribution; outage free links; rain attenuation characteristics; rain attenuation measurements; transmission distances; Attenuation measurement; Bandwidth; Degradation; Estimation error; Frequency measurement; Laboratories; Magnetic field measurement; Radio link; Rain fading; Time measurement;
Conference_Titel :
Signals, Systems, and Electronics, 1995. ISSSE '95, Proceedings., 1995 URSI International Symposium on
Conference_Location :
San Francisco
Print_ISBN :
0-7803-2516-8
DOI :
10.1109/ISSSE.1995.497938
