Approved for public release; distribution is unlimited / The way that the Internet is accessed has changed dramatically in recent years. In addition to wire line connections such as dial-up, xDSL, cable modems or optical fiber, wireless implementations are gaining market share based on technologies such as WiFi, WiMAX, MBWA, satellite and cell phone networks. This thesis examines the potential usage of providing Internet access through cellular infrastructure. The cellular evolution path from first generation (1G) to third generation (3G) and fourth generation (4G) systems is studied and presented. The most popular worldwide cellular voice and data network technologies are also described. Additionally, the Cingular Wireless network in Monterey, California is tested in terms of speed and reliability by providing Internet access to a laptop through a mobile phone. The analysis shows that, depending on the cellular network availability, throughput varied from 5 to 25 Kbps and Round Trip Time (RTT) averaged about 1 sec. Furthermore, it is shown that TCP Timestamps and the Explicit Congestion Notification (ECN) were implemented at the end hosts, thus increasing performance. The thesis concludes that as of July 2004, the 2.5G cellular data networks are a reasonable solution for those who need Internet access anywhere that a cell signal is available, including from moving vehicles, and who can afford its high cost. For others it is not yet an acceptable solution. However, the future 3G networks are an excellent solution in wireless broadband Internet access. These will probably be relatively expensive at first, but the cost should eventually decrease to a reasonable level. / Lieutenant, Hellenic Navy

Thesis (Ph. D.)--Worcester Polytechnic Institute. / Keywords: Playout buffer; rate selection; streaming multimedia; wireless networks; bandwith estimation. Includes bibliographical references (leaves 187-202).

Thesis (MCIS - Computer and Information Sciences) -- AUT University, 2007. / Primary supervisor: Krassie Petrova. Includes bibliographical references. Also held in print (185 leaves : ill. ; 30 cm.) in City Campus Theses Collection (T 004.6 HUA)

Thesis (Ph. D.)--University of Texas at Austin, 2008. / Vita. Includes bibliographical references.

Thesis (M.S. in Computer Science)--Naval Postgraduate School, Sept. 2004. / Thesis advisor(s): Bert Lundy. Includes bibliographical references (p. 107-111). Also available online.

Thesis (B.A.)--Bryn Mawr College, Growth and Structure of Cities Program, 2005. / Includes bibliographical references.

With the ever increasing popularity of wireless internet, its scale is broadening. While the IEEE 802.15 standard provides the parameters necessary for a wireless personal area network (WPAN), the IEEE 802.16a standard provides broadband wireless access (BWA), or a wireless metropolitan area network (WMAN). Popularly referred to as Wi Max, the standard uses cellular topography with a base station and subscriber station and cuts down on infrastructure and thus can be used in most environments. The 802.16a standard can take advantage of the popular OFDM modulation technique. This thesis takes a developed synchronization algorithm and tests its performance on 802.16a. In addition, it tests the standard's performance in different types of channel. Various techniques are evaluated including interleaving and antenna diversity. The 802.16a standard employs a form of transmit diversity called Space Time Coding. The transmit diversity is compared with Maximal Ratio Combining receiver diversity. The evaluation was done in simulation developed in Matlab; the simulations show drastic improvement when using the aforementioned techniques, particularly diversity.

Thesis (PhD)--University of South Australia, 2003.

Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, June 2005. / Thesis Advisor(s): Tri T. Ha. Includes bibliographical references (p. 71-72). Also available online.

by Tam Wing-Lam. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 55-57). / Abstracts in English and Chinese. / Acknowledgments --- p.i / Abstract --- p.ii / 哲學碩士論文摘要 --- p.iii / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Research Background --- p.2 / Chapter 1.2 --- Contribution of the Thesis --- p.5 / Chapter 1.3 --- Organization of the Thesis --- p.6 / Chapter Chapter 2 --- Content Repurposing System Architecture --- p.7 / Chapter 2.1 --- Introduction to ICAP-based Content Repurposing System --- p.7 / Chapter 2.2 --- Generic Service-enabling Platform --- p.8 / Chapter 2.3 --- Rule Engine --- p.10 / Chapter 2.4 --- ICAP-enabled Application Server --- p.10 / Chapter 2.5 --- Store-and-forward Transcoding and Streamed Transcoding --- p.11 / Chapter Chapter 3 --- Transcoding Techniques --- p.18 / Chapter 3.1 --- Text Transcoding --- p.19 / Chapter 2.2 --- Image Transcoding --- p.20 / Chapter 3.3 --- Audio Transcoding --- p.23 / Chapter 3.4 --- Video Transcoding --- p.25 / Chapter Chapter 4 --- Adaptation Policy --- p.28 / Chapter 4.1 --- Delay Analysis of Content Repurposing System --- p.30 / Chapter 4.2 --- Store-and-forward Transcoding for Image Files --- p.31 / Chapter 4.2.1 --- Distribution of Input Web Images --- p.34 / Chapter 4.2.2 --- Transcoding Web images to WBMP --- p.34 / Chapter 4.2.3 --- Adaptation policy of Transformation to WBMP --- p.36 / Chapter 4.2.4 --- Adaptation policy of JPEG images --- p.36 / Chapter 4.3 --- Streamed Transcoding for Audio/Video Files --- p.39 / Chapter 4.3.1 --- Audio Transcoding --- p.41 / Chapter 4.3.2 --- Video Transcoding --- p.42 / Chapter 4.4 --- Case Study --- p.43 / Chapter 4.4.1 --- Weak Device with Insufficient Bandwidth --- p.43 / Chapter 4.4.2 --- Weak Device with Sufficient Bandwidth --- p.43 / Chapter 4.4.3 --- Strong Device with Insufficient Bandwidth --- p.44 / Chapter Chapter 5 --- Conclusion --- p.54 / Bibliography --- p.55