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Coverage vs. capacity analysis for CDMA cellular networks /Jiang, Hai, January 2002 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2002. / Typescript. Vita. Includes bibliographical references (leaves 189-194). Also available on the Internet.
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Novel adaptive signal processing algorithms for wireless communications echo cancellation and multiuser detection /Blunt, Shannon D. January 2002 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2002. / Typescript. Vita. Includes bibliographical references (leaves 137-143). Also available on the Internet.
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Coverage vs. capacity analysis for CDMA cellular networksJiang, Hai, January 2002 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2002. / Typescript. Vita. Includes bibliographical references (leaves 189-194). Also available on the Internet.
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Rate-robustness tradeoffs in multicarrier wireless communicationsKim, Tae Yoon 28 August 2008 (has links)
Not available / text
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Quasi-Orthogonal Frequency Division Multiple-Access for Serial Streaming TelemetryPonnaluri, Satya Prakash, Azimi-Sadjadi, Babak 10 1900 (has links)
ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, California / We propose a spectrally-efficient multiple-access technique that is particularly suitable for aeronautical telemetry applications involving serial streaming of data from multiple test articles to a ground station. Unlike conventional frequency-division multiple access, we assign overlapping frequency bands to different users with a minimum carrier separation corresponding to the symbol rate. We utilize multiuser detection strategies at the ground station to separate the transmissions from different test articles. As shown by the simulation results, the proposed scheme is robust to large frequency offsets due to oscillator offsets and Doppler shifts commonly encounters in aeronautical telemetry applications.
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Development of a high performance InGaP/GaAs HBT power amplifier for WCDMA applicationsPoek, Chi-ki., 卜志琦. January 2005 (has links)
published_or_final_version / abstract / toc / Electrical and Electronic Engineering / Master / Master of Philosophy
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Pilot-symbol-aided techniques for spectrally efficient signals in multipath-fading channels劉慶強, Lau, Hing-keung. January 1997 (has links)
published_or_final_version / Electrical and Electronic Engineering / Doctoral / Doctor of Philosophy
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Combined turbo coding and interference rejection for DS-CDMA.Bejide, Emmanuel Oluremi. January 2004 (has links)
This dissertation presents interference cancellation techniques for both the Forward Error
Correction (FEC) coded and the uncoded Direct Sequence Code Division Multiple
Access (DS-CDMA) systems. Analytical models are also developed for the adaptive and
the non-adaptive Parallel Interference Cancellation (PlC) receivers. Results that are
obtained from the computer simulations of the PlC receiver types confirm the accuracy of
the analytical models that are developed. Results show that the Least Mean Square
(LMS) algorithm based adaptive PlC receivers have bit error rate performances that are
better than those of the non-adaptive PlC receivers.
In the second part of this dissertation, a novel iterative multiuser detector for the Turbo
coded DS-CDMA system is developed. The performance of the proposed receiver in the
multirate CDMA system is also investigated. The developed receiver is found to have an
error rate performance that is very close to the single user limit after a few numbers of
iterations. The receiver is also resilient against the near-far effect. A methodology is also
presented on the use of the Gaussian approximation method in the convergence analysis
of iterative interference cancellation receivers for turbo coded DS-CDMA systems. / Thesis (Ph.D.)-University of KwaZulu-Natal, Durban, 2004.
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Combined turbo coding and interference rejection for DS-CDMA.Bejide, Emmanuel Oluremi. January 2004 (has links)
This dissertation presents interference cancellation techniques for both the Forward Error
Correction (FEC) coded and the uncoded Direct Sequence Code Division Multiple
Access (DS-CDMA) systems. Analytical models are also developed for the adaptive and
the non-adaptive Parallel Interference Cancellation (PlC) receivers. Results that are
obtained from the computer simulations of the PlC receiver types confirm the accuracy of
the analytical models that are developed. Results show that the Least Mean Square
(LMS) algorithm based adaptive PlC receivers have bit error rate performances that are
better than those of the non-adaptive PlC receivers.
In the second part of this dissertation, a novel iterative multiuser detector for the Turbo
coded DS-CDMA system is developed. The performance of the proposed receiver in the
multirate CDMA system is also investigated. The developed receiver is found to have an
error rate performance that is very close to the single user limit after a few numbers of
iterations. The receiver is also resilient against the near-far effect. A methodology is also
presented on the use of the Gaussian approximation method in the convergence analysis
of iterative interference cancellation receivers for turbo coded DS-CDMA systems. / Thesis (Ph.D.)-University of KwaZulu-Natal, Durban, 2004.
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Protocols for voice/data integration in a CDMA packet radio network.Judge, Garth. January 1999 (has links)
Wireless cellular communications is witnessing a rapid growth in, and demand for,
improved technology and range of information types and services. Future third
generation cellular networks are expected to provide mobile users with ubiquitous
wireless access to a global backbone architecture that carries a wide variety of electronic
services. This thesis examines the topic of multiple access protocols and models
suitable for modem third-generation wireless networks.
The major part of this thesis is based on a proposed Medium Access Control (MAC)
protocol for a Code Division Multiple Access (CDMA) data packet radio network, as
CDMA technology is proving to be a promising and attractive approach for spectrally
efficient, economical and high quality digital communications wireless networks. The
proposed MAC policy considers a novel dual CDMA threshold model based on the
Multiple Access Interference (MAl) capacity of the system. This protocol is then
extended to accommodate a mixed voice/data traffic network in which variable length
data messages share a common CDMA channel with voice users, and where the voice
activity factor of human speech is exploited to improve the data network performance.
For the protocol evaluation, the expected voice call blocking probability, expected data
throughput and expected data message delay are considered, for both a perfect channel
and a correlated Rayleigh fading channel. In particular, it is shown that a significant
performance enhancement can be made over existing admission policies through the
implementation of a novel, dynamic, load-dependent blocking threshold in conjunction
with a fixed CDMA multiple access threshold that is based on the maximum acceptable
level of MAl. / Thesis (Ph.D.)-University of Natal, Durban, 1999.
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