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Shadowing fade margin and coverage probability analysis for HAP mobile communication systems
Author(s) -
Zhu Liping,
Chen Zhihong,
Zhu YiSheng
Publication year - 2014
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.2367
Subject(s) - fade , computer science , margin (machine learning) , telecommunications , computer network , machine learning , operating system
SUMMARY An existing elevation dependent shadowing model for high‐altitude platform (HAP) mobile communication in built‐up areas is employed to perform the area coverage probability analysis and fading margin computation for HAP mobile communication systems. A generalized expression for the PDF of the received signal power in the HAP coverage is derived. The shadowing fade margin model that can characterize different types of built‐up area is developed. Theoretical relations between shadowing fade margin and outage probability and cell coverage probability are given. Numerical simulation for isoflux coverage HAP‐based system shows that there is great difference in the value of shadowing fade margin under line‐of‐sight and non‐line‐of‐sight conditions for the same outage probability. It is also found that the cell coverage probability is insensitive to the variance of the shadowing fade margin in suburban environment whatever the size of the cell and for small cells in urban high‐rise environments.Copyright © 2012 John Wiley & Sons, Ltd.