NDLI: Phase modeling of indoor radio propagation channels

Content Provider	IEEE Xplore Digital Library
Author	Nikookar, H. Hashemi, H.
Copyright Year	1967
Abstract	Two models for generating phase of individual multipath components in an indoor environment, partly developed in Hashemi (1993), have been studied in detail. In the deterministic phase increment model (model I), the phase of each multipath component is updated deterministically using several independent random scatterers. In the random phase increment model (model II), the phase of each multipath component is updated by adding independent random phase increments. Performance of these models has been evaluated by means of extensive computer simulations. Statistical properties of narrow-band CW fading signals obtained using each phase model have been compared with the corresponding results for a large empirical wide-band database of 12000 impulse response estimates of indoor radio propagation channels. A major conclusion is that model I (with five scatterers for each multipath component) and model II (with proper choice for phase increments) provide fading results consistent with those obtained from measurements. In this paper, properties of each phase model are described, and an algorithm for generating each is presented. Firstand second-order statistics [amplitude distributions, level crossing rates (LCRs), and average duration of fades (ADFs)] and Doppler spectra of narrow-band CW fading waveforms obtained using simulated phases are reported, and detailed comparison between the simulated and empirical results is carried out. Furthermore, the two models are also compared with each other, and advantages and disadvantages of each are explored. The effect of increasing the number of scatterers and statistical properties of phase increments in model I are studied, simulated, and compared with model II. A major conclusion is that for an appropriate choice of parameters, both models provide satisfactory performance.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	594
Ending Page	606
Page Count	13
File Size	259865
File Format	PDF
ISSN	00189545
Volume Number	49
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Indoor radio communication Fading Scattering Narrowband Indoor environments Computer simulation Wideband Databases Phase estimation Phase measurement
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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