Open AccessIntroduction to Special Issue on Propagation
Author(s) -
ArbesserRastburg B.
Publication year - 2001
Publication title -
international journal of satellite communications
Language(s) - English
Resource type - Journals
eISSN - 1099-1247
pISSN - 0737-2884
DOI - 10.1002/sat.707
Subject(s) - section (typography) , agency (philosophy) , special section , citation , space (punctuation) , computer science , library science , telecommunications , physics , sociology , engineering physics , social science , operating system
Satellite communication systems are providing a wide variety of services to all regions of the world. In the beginning, satellite communications were only used for intercontinental trunk telephony services with very high availability requirements and later for TV-broadcasting with a signi"cantly lower connection requirement. Today, packet-oriented multimedia services, which cater to "xed and mobile users, have quality and availability speci"cations that are tailored to the user needs, allowing satellites to be #exible and competitive. One essential element in the optimization of satellite communication services is the knowledge of propagation characteristics of a particular link. The main propagation e!ects on satellite communications at frequencies above 10 GHz are