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 Keywords
- broadband
- wireless propagation
- aggregate partition loss
- multipath
- millimeter-wavelength
- channel sounder
Date of Defense 2002-05-06 Availability unrestricted Abstract Over the past decade, the market for wireless service has grown atan 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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