Title page for ETD etd-05092002-101656

Type of Document Master's Thesis
Author Anderson, Christopher Robert
Author's Email Address chanders@vt.edu
URN etd-05092002-101656
Title Design and Implementation of an Ultrabroadband Millimeter-Wavelength Vector Sliding Correlator Channel Sounder and In-Building Multipath Measurements at 2.5 & 60 GHz
Degree Master of Science
Department Electrical and Computer Engineering
Advisory Committee
Advisor Name Title
Rappaport, Theodore S. Committee Chair
Raman, Sanjay Committee Member
Sweeney, Dennis G. Committee Member
  • broadband
  • wireless propagation
  • aggregate partition loss
  • multipath
  • millimeter-wavelength
  • channel sounder
Date of Defense 2002-05-06
Availability unrestricted
Over the past decade, the market for wireless service has grown at

an unprecedented rate. The industry has grown from cellular phones and

pagers to broadband and ultra-broadband (also called ultra-wideband)

wireless services that can provide voice, data, and full-motion video in

real time. This growing hunger for faster data rates and larger

bandwidths has prompted a need for a deeper understanding of the

wireless channels upon which these devices communicate. In order for

the visions of real time full-motion video, multimedia, and high speed

data delivery inherent in the 3rd and 4th generations of wireless

communication standards to be fully realized, system design engineers

must have a thorough understanding of the wireless channels upon which

these devices operate. Additionally, for these networks to deliver

their promised data rates, they must operate at very high microwave and

millimeter-wave frequencies, where large segments of spectrum are

readily obtained.

Unfortunately, little is known about the propagation characteristics

at these frequencies and bandwidths. As a consequence, there has been a

significant demand for wireless test equipment that is capable of

characterizing these new wireless channels. The objective of this

research was to design and develop a wireless test instrument that can

not only characterize these new wireless channels, but has the

portability to be quickly and easily re-located to various measurement

sites, as well as the flexibility to characterize a wide variety of

frequencies and bandwidths in addition to the ultrawideband channels

investigated in this work. This measurement system is also designed to

be capable of characterizing both the magnitude and phase response of

these wireless channels, which not only provides a more complete channel

characteristic, but the potential capability to measure the Doppler

spectrum introduced by a dynamic channel.

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