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Approximate urban area call drop‐out probability estimation in mobile multi‐satellite systems
Author(s) -
PerezFontan F.,
VazquezCastro M.A.,
Enjamio C.,
Mariño P.,
Pita J.
Publication year - 2003
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.738
Subject(s) - computer science , satellite , azimuth , satellite constellation , telecommunications , real time computing , telephony , satellite system , probability density function , communications satellite , service (business) , mobile telephony , remote sensing , computer network , global positioning system , mobile radio , statistics , physics , mathematics , economy , gnss applications , astronomy , engineering , economics , aerospace engineering , geology
Land mobile satellite (LMS) systems require constellations of multiple satellites to compensate for the large blockage probabilities suffered in urban areas. An approximate methodology based on the street masking function (MKF) or mask concept is presented for the evaluation of system availability. MKFs are graphical representations of the angles (azimuths and elevations) for which a satellite is visible from the terminal's location in the street. MKFs can also be used in the evaluation of second order statistics such as durations of fades or connections. In this paper, the applicability of the mask concept is demonstrated by performing a study of the probability of successful call completion in a LEO‐based satellite telephony service. Copyright © 2003 John Wiley & Sons, Ltd.