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Antenna diversity for DVB‐S2 mobile services in railway environments
Author(s) -
Cioni S.,
Corazza G. E.,
VanelliCoralli A.
Publication year - 2007
Publication title -
international journal of satellite communications and networking
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 39
eISSN - 1542-0981
pISSN - 1542-0973
DOI - 10.1002/sat.886
Subject(s) - computer science , fading , antenna (radio) , transmission (telecommunications) , telecommunications , digital video broadcasting , antenna diversity , computer network , cooperative diversity , power (physics) , real time computing , electrical engineering , channel (broadcasting) , engineering , physics , quantum mechanics
This paper evaluates the applicability of the DVB‐S2 standard in railway environments, where the most peculiar impairment is the periodic deep fading caused by power‐supply arches distributed along the rail tracks. This effect induces a link loss every time the train antenna undergoes a power arch and cannot be counteracted with transmission power. Therefore, we propose and investigate the use of antenna diversity on the train. Simulation and semi‐analytical results show that second‐order diversity suffices to remove the packet error floor observed in the case of a single receiving antenna, thus enabling the application of DVB‐S2 to this harsh environment. Copyright © 2007 John Wiley & Sons, Ltd.