NDLI: Attenuation over distance and excess path loss for a large-area indoor commercial topology at 2.4 GHz

Content Provider	IEEE Xplore Digital Library
Author	Chrysikos, T. Kotsopoulos, S. Karagiannidis, G.
Copyright Year	2012
Description	Author affiliation: Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Greece (Karagiannidis, G.) \|\| Department of Electrical and Computer Engineering, University of Patras, Greece (Chrysikos, T.; Kotsopoulos, S.)
Abstract	The present work features the evaluation of curve fitting models for the estimation of attenuation over distance and excess path loss, on the basis of extensive measurements performed in a large-area indoor commercial topology at 2.4 GHz. The case study is the departures level of Athens International Airport, including up to three Access Points. The basic propagation mechanisms in this scenario are free space propagation with direct Line-of-Sight, reflection and multipath. Hence, a shadow fading based methodology for the calculation of excess path loss and attenuation over distance is not applicable in this case. For this purpose, an alternate method has been developed, featuring various models which have been employed and fit to the experimental data. Their fitting robustness has been compared in terms of Goodness-of-Fit metrics such as the R-Square and the Adjusted R-Square. Coefficients with 95% confidence bounds have been calculated and put to the test. The excess path loss has been estimated in relation to the distance and the logarithm of the distance. Results vary as to their precision according to the nature of each case study, in terms of propagation mechanisms, and the efficiency of each curve fitting model.
Starting Page	1
Ending Page	6
File Size	476366
Page Count	6
File Format	PDF
ISBN	9781467307451
e-ISBN	9781467307475
e-ISBN	9781467307468
DOI	10.1109/ICTEL.2012.6221316
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-23
Publisher Place	Lebanon
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Attenuation over distance Atmospheric modeling Indoor propagation Goodness-of-fit Wireless Channel Characterization Path Loss Attenuation Propagation losses Airports Polynomials Topology Numerical models
Content Type	Text
Resource Type	Article

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