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Framework for Indoor Wireless Propagation Modeling Through Wireless Insite

Arao Zau Macaia, Niraj Narayan, Rajeev Shukla, Aniruddha Chandra, Ondrej Zeleny, Radek Zavorka, Jiri Blumenstein, Ales Prokes, Jaroslaw Wojtun, Jan M. Kelner, Cezary Ziolkowski

Abstract

Multipaths, reflections, diffractions, and material interactions complicate indoor wireless propagation modelling. More than 80% of wireless data is consumed indoors; hence, planning successful deployments and maximizing network performance depends on accurate propagation modelling of indoor environments. This work explains a complete framework for indoor wireless propagation modelling via ray tracing simulation in a step-by-step manner. The ray tracing simulations are conducted with Wireless Insite, a proprietary electromagnetic propagation software, whereas SketchUp is used at the input side for layout construction from the field measurements, and MATLAB is used at the output side for portraying channel model parameters such as power delay profile (PDP). A whole floor of the authors' department is modelled, and different transmitter-receiver locations were tested for possible use cases such as coverage hole prediction.

Framework for Indoor Wireless Propagation Modeling Through Wireless Insite

Abstract

Multipaths, reflections, diffractions, and material interactions complicate indoor wireless propagation modelling. More than 80% of wireless data is consumed indoors; hence, planning successful deployments and maximizing network performance depends on accurate propagation modelling of indoor environments. This work explains a complete framework for indoor wireless propagation modelling via ray tracing simulation in a step-by-step manner. The ray tracing simulations are conducted with Wireless Insite, a proprietary electromagnetic propagation software, whereas SketchUp is used at the input side for layout construction from the field measurements, and MATLAB is used at the output side for portraying channel model parameters such as power delay profile (PDP). A whole floor of the authors' department is modelled, and different transmitter-receiver locations were tested for possible use cases such as coverage hole prediction.
Paper Structure (10 sections, 10 figures)

This paper contains 10 sections, 10 figures.

Table of Contents

  1. Introduction
  2. What is Ray Tracing?
  3. Ray Tracing for Indoor Environments
  4. Literature Survey
  5. Workflow with Wireless Insite
  6. Site Description
  7. Stages of the Workflow
  8. Verification
  9. Use Case of the WorkFlow
  10. Future Work

Figures (10)

  • Figure 1: Satellite images and building photograph of the site [clockwise from left]: (a) Aerial view of National Institute of Technology (NIT) Durgapur, (b) Top view of the Electronics and Communication Engineering (ECE) department, and (c) Photograph of the ECE department building taken from south-west direction. [image courtesy: Google Earth, Google Maps]
  • Figure 2: Layout of the 1st floor (a) Top view designed in AutoCAD and (b) Three-dimensional (3D) view designed in SketchUp. The corridor is stretched east-west, and faculty rooms are south-facing. Dimensions are in m.
  • Figure 3: Four stages of the workflow [clockwise from top-left]: (a) Dimensional measurements are being taken in the classroom EC 21, (b) 3D layout is obtained in SketchUp after measurements are fed, (c) Indoor radio propagation environment layout is constructed with Wireless Insite, and (d) Channel model parameters are viewed through MATLAB.
  • Figure 4: Detailed workflow in a step-by-step manner - the top portion shows SkechUp flow, the middle layer shows the main Wireless Insite flow, and the bottom layer shows the MATLAB flow.
  • Figure 5: Verification of the constructed radio propagation environment. The distance between $T_X$ and $R_X$ divided by the propagation speed should match the delay of the first-arriving LOS path delay.
  • ...and 5 more figures