Title page for ETD etd-022299-134645


Type of Document Master's Thesis
Author Bhat, Nitin
URN etd-022299-134645
Title An Antenna Specific Site Modeling Tool for Interactive Computation of Coverage Regions for Indoor Wireless Communication
Degree Master of Science
Department Electrical and Computer Engineering
Advisory Committee
Advisor Name Title
Abbott, A. Lynn Committee Chair
Rappaport, Theodore S. Committee Member
Woerner, Brain D. Committee Member
Keywords
  • Site specific prediction
  • Directional Antennas
  • Wireless Communication
  • RF Propagation
Date of Defense 1998-03-02
Availability unrestricted
Abstract
A goal of indoor wireless communication is to strategically place RF base stations

to obtain optimum signal coverage at the lowest cost and power. Traditionally,

transceiver locations have been selected by human experts who rely on experience and

heuristics to obtain a near-optimum placement. Current methods depend on involved on-site

communication measurements and crude statistical modeling of the obtained data

which is time consuming and prohibitive in cost. Given the inherent variability of the

indoor environment, such a method often yields poor efficiency. As an example, it is

possible that more power than required or extra number of transceivers were used. This

thesis describes an interactive software system that can be used to aid transceiver

placement. The tool is easy to use and is targeted at users who are not experts in wireless

communication system design. Once the transceiver locations are selected by the user

within a graphical floor plan, the system uses simple path-loss models to predict coverage

regions for each transceiver. The coverage regions are highlighted to indicate expected

coverage. Earlier work assumed isotropic transceivers and had limited directional

transmitter support. This thesis describes how the tool has been enhanced to support a

wide range of 3D antenna patterns as encountered in practical situations. The tool has

also been expanded to accommodate more partition types and to report area of coverage.

The resulting system is expected to be very useful in the practical deployment of indoor

wireless systems.

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