Evaluation of Adaptive Satellite Power Control Method Using Rain Radar Data

Peeramed CHODKAVEEKITYADA  Hajime FUKUCHI  

Publication
IEICE TRANSACTIONS on Communications   Vol.E99-B   No.11   pp.2450-2457
Publication Date: 2016/11/01
Publicized: 2016/06/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2015EBP3550
Type of Manuscript: PAPER
Category: Satellite Communications
Keyword: 
boost power beam,  rain attenuation,  rain radar,  adaptive satellite power control,  

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Summary: 
Rain attenuation can drastically impact the service availability of satellite communication, especially in the higher frequency bands above 20 GHz, such as the Ka-band. Several countermeasures, including site and time diversity, have been proposed to maintain satellite link service. In this paper, we evaluate the performance of a power boost beam method, which is an adaptive satellite power control technology based on using rain radar data obtained throughout Japan to forecast the power margin. Boost beam analysis is considered for different beam sizes (50, 100, 150, and 200km) and beam numbers (1-4 beams) for a total of 16 cases. Moreover, we used a constant boost power corresponding to the rainfall rate of 20mm/h. The obtained results show that in comparison to the case with no boost, the effective rain intensity in each boost case was reduced.