NDLI: A Hybrid Method for Indoor Wave Propagation Modeling

Content Provider	IEEE Xplore Digital Library
Author	Thiel, M. Sarabandi, K.
Copyright Year	1963
Abstract	A novel method of analyzing wave propagation in a building consisting of a heterogeneous mixture of homogeneous and periodic walls is presented. In this method walls are discretized into finite-size building blocks and a finite-difference time-domain (FDTD) approach is used to compute their electromagnetic response in a periodic arrangement as well as in corner and terminal locations. These results in conjunction with an iterative field/current calculation algorithm are used to compute the interactions among the walls. The theory and the implementation of this method are described for the 2-D case. The algorithm will henceforth be referred to as ldquobrick-tracingrdquo algorithm. This field calculation leads to more accurate indoor field predictions, as it accounts for multiple scattering from periodic (cinderblocks, rebar structures, etc.) and nonperiodic wall structures and yet is computationally tractable. The FDTD computation of the walls is fast because of the finite and relatively small size of the building blocks and the iterative current computation only uses simple radiation integral calculations. Consequently computational time is much less than any full-wave simulation. At 1.0 GHz, the 2-D approach of this hybrid method is validated with a full-wave FDTD code and its capability to analyze complex indoor environments is shown.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	2703
Ending Page	2709
Page Count	7
File Size	1041747
File Format	PDF
ISSN	0018926X
Volume Number	56
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Finite difference methods Time domain analysis Ray tracing Nonuniform electric fields Iterative algorithms Periodic structures Indoor environments Optical scattering Light scattering Optical propagation ray-tracing Indoor propagation
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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