Thesis (Master)--İzmir Institute of Technology, İzmir, 2006. / Keywords: Cluster method, mobile communication, distruted systems, software architecture, communication networks. Includes bibliographical references (leaves. 63-69).

Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: OFDM; modem; data. Includes bibliographical references (leaves 158-160 ).

Thesis (M.S. in Computer Science)--Naval Postgraduate School, September 2009. / Thesis Advisor(s): Singh, Gurminder ; Gibson, John H. "September 2009." Description based on title screen as viewed on November 05, 2009. Author(s) subject terms: High Availability, Failsafe, Fault-tolerant, Distributed Mobile System, TwiddleNet Includes bibliographical references (p. 53-55). Also available in print.

Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, December 1990. / Thesis Advisor(s): Ha, Tri T. ; Robertson, R. Clark. "December 1990." Description based on title screen as viewed on March 30, 2010. DTIC Descriptor(s): Military facilities, models, packets, signal to noise ratio, theses, random access computer storage, variables, length, mobile, delay, communication and radio systems, radio equipment, rings, retransmission, radio stations, strategy DTIC Identifier(s): Packet lengths, ring models, radio packets, program listings, theses Author(s) subject terms: A ring model for local/mobile radio communications; variable packet length; near/far effect; equal ring throughput Includes bibliographical references (p. 49). Also available in print.

Thesis (M. Eng.)--Carleton University, 1992. / Also available in electronic format on the Internet.

Thesis (doctoral)--Tampere University of Technology, 2005. / Includes bibliographical references. Also available on the World Wide Web.

Thesis (M.S.)--Brigham Young University. Dept. of Computer Science, 2005. / Includes bibliographical references (p. 69-71).

Thesis (Ph.D.)--University of Florida, 2005. / Title from title page of source document. Document formatted into pages; contains 91 pages. Includes vita. Includes bibliographical references.

M.B.A. / This dissertation looks at E-Commerce in the South African electronic component distribution industry. With this in mind, various questions were defined and these were used to help understand the current situation, determine the future that ECommerce should have in the industry and find a mechanism to go from the current to the future situation, the questions are as follows: Has the traditional electronic component distribution channel been made obsolete by E-Commerce? What does the South African electronic component consumer want from the distributor in terms of E-Commerce? Is the communication and information technology infrastructure in South Africa adequate for the needs of E-Commerce within the electronic component industry? What are the E-Commerce models and strategies? What form and scope should E-Commerce take within the electronic component distribution industry? The research will ultimately be used as a model to help determine the E-Commerce strategy of Analog Data Products (ADP). It will enable ADP to determine if it needs to implement E-Commerce and if so at what level. The research was done using literature review to determine current trends and to seek new insights. A survey was used to verify the findings of the literature review and fill in gaps of knowledge that the literature review was unable to answer. The literature review found that there are numerous E-Commerce models, of which most fall short when compared to a generic business strategy model. It was also found that E-Commerce could often be detrimental to business. The literature also found that there are deficiencies in bandwidth in South Africa. The survey results showed that respondents are happy with the speed of E-Commerce type media, it was therefore concluded that the electronic component distribution industry is different from the norm because of its high technology nature. The survey results also showed that respondents would like to make more use of their local distributor. This indicates that the traditional distribution channel has not become obsolete. However there is a desire for more E-Commerce type transactions. These transactions should be implemented as a complement to the traditional channels rather then replacing all types of conventional business. An E-Commerce strategy should include a thorough understanding of how E-Commerce affects the value chain, which in turn will show which aspects of the chain require E-Commerce as complements and which do not.

Against the background of the rapid evolution of mobile communication systems in the areas of service provision and capacity enhancement described above, the main focus of the research is on coded space-time processing techniques. The use of space-time processing is an attractive solution because it can mitigate the effects of multipath fading as well as suppress co-channel interference, therefore, significantly improving system performance. The topics are presented in the context of designing mobile communication systems where the two core areas of spatial processing and error coding are to be integrated in an optimum way. Of particular importance in this thesis, will be those CDMA based solutions for the mobile sector and the new performance analysis issues that need to be addressed as a result of the introduction of heterogeneous services and service environments into a single, mobile cellular access network. Furthermore, novel applications of turbo transmit and receive antenna diversity and beamforming techniques to mobile cellular access networks aimed at increasing the efficiency of such networks are considered. The thesis has the following goals: • To establish a general spatial/temporal channel model for use in the evaluation of coded space-time processing concepts applied to CDMA networks. • To analyze the performance of uncoded cellular CDMA systems incorporating space-time techniques using analytical methods in a number of realistic application scenarios. • To design, implement and evaluate coding strategies for incorporation into the space-time CDMA systems. This objective can be broken down into the following items: --- Space-time coding systems when considering multiple transmit antennas for the downlink. --- Coded space-time systems when considering multiple receive antennas for the uplink. • To establish the performance of coded space-time CDMA cellular networks under realistic scenarios. This thesis introduces many (some novel) space-time turbo coded techniques to increase the downlink capacity of a cellular CDMA network using multiple transmit antennas. For improving the uplink capacity, coded space-time diversity and beamforming techniques, employing multiple receive antennas, are considered. In order to quantify the performance improvements that may be achieved, a framework for the evaluation of these systems are constructed. Using this framework the BEP of all the space-time coding systems are derived analytically, and evaluated under identical propagation scenarios. The results presented show that the use of space-time turbo coded processing is an attractive solution since it can improve system performance significantly under conditions of multipath fading for both the uplink and downlink. It is shown that the two core areas of spatial processing and channel coding can be integrated in an optimum way to increase the capacity of existing cellular CDMA networks. / Thesis (DPhil (Electronic Engineering))--University of Pretoria, 2007. / Electrical, Electronic and Computer Engineering / unrestricted