Thesis (Ph. D.)--University of Washington, 2006. / Vita. Includes bibliographical references (leaves 158-164).

The networking field has become a core component for any company. All of the businesses rely on the networking industry, due its vastness and significance. Every day companies are planning and thinking to develop better strategies that can offer efficient and reliable communication solutions between their employees and customers for maximum revenue. The planning of a company’s network requires a lot of resources and aspects to study, and to evaluate them carefully to build a comprehensive secure and reliable platform. It is the job of a network administrator to take care of the company’s network infrastructure and upgrade or update the required components and applications from time-to-time that can follow new standards. This thesis is a practical work aimed to evaluate a company network infrastructure in its real environment. The purpose of this thesis is to evaluate different aspects of the network infrastructure used such as VPN, WLAN, firewall and physical security and give recommendations to make their performance better and to offer more advanced strategies. This study will also provide an inclusive observation of the company’s needs and their network infrastructure, and will provide a concept how to evaluate and fix small mistakes, the kind of problems that can occur in an evolving company network. Lastly, this research will make recommendations and suggest a possible implementation on the studied network infrastructure.

No description available.

This Thesis presents the design and development of a reconfigurable both in frequency and radiation pattern Annular Slot Antenna (ASA). The antenna is fabricated on Duroid with dielectric constant 6.15. The ASA operates in three different frequencies: 5.2, 5.8 and 6.4 GHz. The matching at those frequencies is achieved using linear stubs. PIN diodes are used as switches to connect/disconnect the stubs to the microstip feed line. The use of PIN diodes along the slot allows the steering of the radiation pattern and therefore the position of a radiation pattern null is directed in three pre-selected directions.

The objective of the research is to develop an accurate system for indoor location estimation using a secure architecture based on the IEEE 802.11 standard for infrastructure networks. Elements of this secure architecture include: server-oriented platform for greater trust and manageability; multiple wireless network parameters for improved accuracy; and Support Vector Regression (SVR) for accurate, high-resolution estimates. While these elements have been investigated individually in earlier research, none has combined them to a single security-oriented system. Thus this research investigates the feasibility of using these elements together.

Thesis (M.S. in Computer Science and M.S. in Electrical Engineering)--Naval Postgraduate School, March 2004. / Thesis advisor(s): Gilbert M. Lundy, Roberto Cristi. Includes bibliographical references (p. 95-97). Also available online.

Title from title page of PDF (University of Missouri--St. Louis, viewed February 22, 2010). Includes bibliographical references (p. 83-95).

Not available / text

M. Tech. Electrical Engineering. / Proposes a power control algorithm for video transmission over WMNs. The proposed algorithm is implemented and simulation results compared with those of conventional IEEE 802.11b network.

published_or_final_version / abstract / toc / Electrical and Electronic Engineering / Doctoral / Doctor of Philosophy