Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2006. / Altunbasak, Yucel, Committee Chair ; Mersereau, Russell M., Committee Member ; Fekri, Faramarz, Committee Member ; Smith, Glenn, Committee Member ; Huo, Xiaoming, Committee Member. Includes bibliographical references.

Thesis, PlanB (M.S.)--University of Wisconsin--Stout, 2005. / Includes bibliographical references.

Thesis (Ph. D.)--University of Texas at Austin, 2005. / Supervisor: Theodore S. Rappaport. Vita. Includes bibliographical references.

Thesis (Ph. D.)--Ohio State University, 2005. / Title from first page of PDF file. Includes bibliographical references (p. 145-149).

Thesis (Ph.D.)--Montana State University--Bozeman, 2007. / Typescript. Chairperson, Graduate Committee: Richard Wolff. Includes bibliographical references.

Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 124-136). Also available in electronic version.

Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 36-39). Also available in electronic version.

Thesis (M.Sc. (Computer Science)) - Rhodes University, 2007.

Thesis (MScEng) -- Stellenbosch University, 2004. / ENGLISH ABSTRACT: Wireless Area Network technology for industrial and factory applications is important for satisfying inflexible (safety-critical) real-time requirements in sometimes harsh environments. Many of these applications involve mobile subsystems and could benefit from recent Wireless LAN technologies replacing the current cable-based systems. An immediate question is how this technology can be used for wireless Area Network systems? An important aspect of this question is the development of time-variable wireless links with good real-time performance. This project will attempt to answer some aspects of this question. The main objective of this thesis is to create a wireless area network for instrumentation purposes, interconnecting various monitoring and control transducers to a central master station. This project focuses on three transmission technologies used for wireless LANs with low power consumption; capable of close range positioning, indoors as well as outdoors. These transmission technologies are Infrared LAN (IrDA), Spread Spectrum LAN and Narrowband Microwave LAN. As a result of the evaluation of the three technologies, an Infrared LAN (IrDA) system was implemented as an area network, utilising an IrLAP protocol (Master and Slave) as a communication protocol. The Master is enabled to monitor and control all slaves interfaced to it. / AFRIKAANSE OPSOMMING: Draadlose netwerktegnologie vir industrietoepassings, is nodig om aan te pas by spesifieke veiligheids- en omgewingstoestande. Baie van hierdie toepassings het betrekking op mobiele substelsels en kan baat by vervanging van bekabeling met onlangse draadlose netwerktegnologie. Die ontwikkeling van sulke netwerke met goeie tydreaksie, is hier belangrik. Die hoofdoel van hierdie tesis is om ’n draadlose areanetwerk te skep vir instrumentasiedoeleindes, wat verskeie monitor-en beheeromsetters aan ’n sentrale meesterstasie sal verbind. Hierdie projek fokus op 3 sulke benaderings, nl. Infrarooi AN (IrDA), Spreispektrum AN en Nouband Mikrogolf AN. Na ondersoek is ’n stelsel gebaseer op IrDA, geimplementeer as areanetwerk, met behulp van die IrLAP protokol. Die meester beheer alle kommunikasie met- en beheeraksies van die buitestasies.

M.Ing. (Electrical And Electronic Engineering) / This dissertation presents a fully integrated image rejection receiver, the design of a wireless local area network receiver, by using CMOS transistors, including circuit implementations, as well as the design of a low noise amplifier, down conversion mixer, LC oscillators passive on-chip inductor, IF mixer, and low-pass filter based on CMOS active inductor. The study compares receiver topologies, heterodyne architecture, image rejection and associated problems, direct conversion, low- IF and wideband IF architecture, and DC offset, and presents the chosen circuit configurations for a 2.4 GHz CMOS wireless-LAN receiver. It also compares different topologies of a low noise amplifier, mixers, and oscillators. On-chip passive devices are also presented. The fully integrated image rejection receiver consists of a first stage LNA with input 2.4 GHz and NF equal to 2 dB , output of the LNA signal at 2.4 GHz, with a gain of 24 dB mixing with LC Local oscillator signal 1.2 GHz in the RF Mixer, and the out-mixing signal mixed again with the quadrature Oscillator 1.2 GHz in the IF Mixer. The final stage presents a differential low-pass filter based on a CMOS active inductor 100 MHz. This receiver design operates in the 2.4 GHz frequency. The ultimate aim of this project is to design a small-area IC chip and a low-power fullyintegrated 2.4 GHz CMOS receiver. CMOS was selected as the technology of choice because of its cost advantages in comparison with other processes.