Photocopy of typescript. / Digitized by Kansas Correctional Industries

by Poon Lai Shun. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1994. / Includes bibliographical references (leaves 59-[64]). / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Background of Measurement in Indoor Environment --- p.7 / Chapter 2.1 --- Propagation loss --- p.8 / Chapter 2.1.1 --- Basic concepts --- p.8 / Chapter 2.1.2 --- Indoor propagation --- p.13 / Chapter 2.2 --- Multipath characteristics --- p.15 / Chapter 3 --- Propagation Model --- p.17 / Chapter 4 --- Measurement Sites and Equipment Setup --- p.21 / Chapter 4.1 --- Measurement sites --- p.21 / Chapter 4.2 --- Equipment setup --- p.22 / Chapter 5 --- Measurement Results --- p.27 / Chapter 5.1 --- Propagation loss in the same building --- p.27 / Chapter 5.1.1 --- Measurement in Engineering Building --- p.27 / Chapter 5.1.2 --- Measurement in Hostel --- p.30 / Chapter 5.2 --- Penetration across the atrium and neighboring building --- p.31 / Chapter 5.3 --- Multipath characteristics --- p.33 / Chapter 6 --- Frequency Reuse Planning and Limitations on Measurement --- p.50 / Chapter 6.1 --- Frequency reuse planning --- p.50 / Chapter 6.2 --- Limitations on the propagation loss measurement --- p.53 / Chapter 6.3 --- Limitations on multipath measurement --- p.54 / Chapter 7 --- Conclusions --- p.55 / Appendix --- p.56 / Chapter A --- Method of Calculating Path Loss Slope --- p.56 / Bibliography --- p.59

Hung, Kwok-Wah. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1991. / Bibliography: leaves 109-111. / ACKNOWLEDGEMENTS / ABSTRACT / Chapter CHAPTER 1 --- Overview of Packet Radio Networks --- p.1 / Chapter 1.1 --- Introduction --- p.2 / Chapter 1.2 --- Network Structure --- p.3 / Chapter 1.3 --- Channel Access Protocol --- p.3 / Chapter 1.4 --- Spatial Reuse --- p.5 / Chapter 1.5 --- Spread Spectrum --- p.6 / Chapter 1.6 --- Thesis Introduction --- p.8 / Chapter CHAPTER 2 --- Design Algorithms for Networks with Directional Antennas --- p.12 / Chapter 2.1 --- Introduction --- p.13 / Chapter 2.2 --- Problems in The MTCD/MDA Protocol --- p.14 / Chapter 2.3 --- The Simple Tone Sense (STS) Protocol --- p.15 / Chapter 2.4 --- The Variable Power Tone Sense (YPTS) Protocol --- p.18 / Chapter 2.5 --- Network Design Algorithms --- p.19 / Chapter 2.6 --- Network Design Example --- p.25 / Chapter 2.7 --- Simulation Results --- p.28 / Chapter 2.8 --- Chapter Summary --- p.31 / Chapter CHAPTER 3 --- The Coded Tone Sense Protocol --- p.44 / Chapter 3.1 --- Introduction … --- p.45 / Chapter 3.2 --- System Model and Code Assignment Algorithm --- p.46 / Chapter 3.3 --- Protocol Description --- p.48 / Chapter 3.4 --- Simulation Results --- p.49 / Chapter 3.5 --- Chapter Summary --- p.51 / Chapter CHAPTER 4 --- An Efficient Spreading Code Assignment Algorithm --- p.54 / Chapter 4.1 --- Introduction … --- p.55 / Chapter 4.2 --- Code Assignment and Graph Coloring --- p.55 / Chapter 4.3 --- Algorithm Description --- p.57 / Chapter 4.4 --- Results and Discussion --- p.59 / Chapter 4.5 --- Chapter Summary --- p.60 / Chapter CHAPTER 5 --- Fair and Efficient Transmission Scheduling --- p.64 / Chapter 5.1 --- Introduction --- p.65 / Chapter 5.2 --- The Scheduling Problem --- p.67 / Chapter 5.3 --- The Scheduling Algorithm --- p.68 / Chapter 5.4 --- Performance Analysis --- p.70 / Chapter 5.5 --- Results and Discussion --- p.72 / Chapter 5.6 --- Chapter Summary --- p.74 / Chapter CHAPTER 6 --- Staggered Multicast Protocol with Collision-Free Acknowledgement --- p.79 / Chapter 6.1 --- Introduction --- p.80 / Chapter 6.2 --- System Model --- p.83 / Chapter 6.3 --- Protocol Description --- p.84 / Chapter 6.4 --- Staggered Relay Broadcasting --- p.90 / Chapter 6.5 --- Simulation Results --- p.91 / Chapter 6.6 --- Chapter Summary --- p.92 / Chapter CHAPTER 7 --- Conclusion --- p.104 / Chapter 7.1 --- Summary --- p.105 / Chapter 7.2 --- Topics for Future Research --- p.107 / REFERENCES --- p.109

Thesis (M.S.)--Boston University

No description available.

In a time of shifting technological, regulatory and economic regimes, and debate as to the present and potential uses of media, this thesis offers radio practitioners and students a pragmatic, rather than a highly theorised, enquiry into the notion and value of local radio. In a detailed case study, it uses the chosen stations as the basis for an empirical examination of actual output, and demonstrates comparisons between objectives and achievement against the background of regulatory and self-reflective constraints, and within geographical and technological contexts. This thesis also challenges some common assumptions about localness in quasi-local radio and provides a detailed insight into the perceptions of a number of managers about local and community radio stations. This is a qualitative study, focusing on broadcaster-output rather than on listener perception. The enquiry takes the form of a case study of “local” radio in the south-west of Cornwall, UK, by examining examples of the three tiers of radio: BBC Public Service, Commercial and Community Radio respectively. Methodologically, background factors are first assessed by interrogating literature covering local radio in the digital age; the nature of locality and localness; the notion of community; and the role of commercialism in local radio. The research, centered in particular upon notions of localness and community, interrogates those terms for meaning and relevance. A detailed review follows, looking at the formal obligations imposed on each tier and each station (a) by broadcast licences and (b) by self-reflective aims and objectives. Field research then employs observation and full-day, annotated audio monitoring, leading to detailed analytical comparisons of the extent to which the stations rise to the challenges posed. Aspects of typicality and representative sampling are addressed, to ensure that the results obtained through field-research methodology are reliable and repeatable. Conclusions on the specific issue of compliance produce a mixed picture, with all stations complying to a greater or lesser extent with regulatory licence conditions while some appear to fall short of fulfilling their own objectives. Other conclusions on comparative operational and management issues are equally varied but equally worth perusal.

Nie, Jing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 73-77). / Abstracts in English and Chinese. / Abstract --- p.i / Abstract (Chinese Version) --- p.iii / Acknowledgement --- p.iv / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Technology Overview --- p.4 / Chapter 2.1 --- History --- p.5 / Chapter 2.2 --- RFID Systems --- p.7 / Chapter 2.2.1 --- Tag --- p.8 / Chapter 2.2.2 --- Reader --- p.10 / Chapter 2.2.3 --- Software system --- p.12 / Chapter 2.2.4 --- Communication infrastructure --- p.13 / Chapter 2.3 --- Frequency Regulations and Standards --- p.13 / Chapter 2.3.1 --- RFID frequency --- p.13 / Chapter 2.3.2 --- Standards --- p.14 / Chapter 2.4 --- Technology Comparison and RFID Applications --- p.16 / Chapter 2.4.1 --- Technology Comparison --- p.16 / Chapter 2.4.2 --- RFID Applications --- p.19 / Chapter 3 --- Research Background --- p.22 / Chapter 3.1 --- Tag-Collision Resolution Techniques for RFID systems --- p.23 / Chapter 3.1.1 --- Deterministic Collision-Resolution Technique --- p.25 / Chapter 3.1.2 --- Stochastic Collision-Resolution Technique --- p.27 / Chapter 4 --- Optimized Anti-Collision Protocol --- p.30 / Chapter 4.1 --- System Description --- p.31 / Chapter 4.2 --- Mathematical System Model --- p.35 / Chapter 4.3 --- Optimal Parameter --- p.40 / Chapter 4.3.1 --- Stochastic Shortest Path --- p.41 / Chapter 4.3.2 --- Optimal Parameter --- p.44 / Chapter 4.4 --- Performance Evaluation --- p.45 / Chapter 4.4.1 --- Initial and Optimal Policy --- p.45 / Chapter 4.4.2 --- Performance Comparison --- p.48 / Chapter 4.5 --- Summary --- p.53 / Chapter 5 --- Unknown Tag Set Anti-Collision Protocol --- p.54 / Chapter 5.1 --- Protocol Description --- p.55 / Chapter 5.1.1 --- System Model --- p.55 / Chapter 5.1.2 --- Tag Estimation --- p.57 / Chapter 5.2 --- Performance Evaluation --- p.62 / Chapter 5.3 --- Summary --- p.67 / Chapter 6 --- Conclusion and Future Work --- p.68 / Chapter 6.1 --- Conclusion --- p.68 / Chapter 6.2 --- Future Work --- p.70 / Bibliography --- p.73

Gao, Xin. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 73-74). / Abstracts in English and Chinese. / Table of Contents --- p.vii / Table of Figures --- p.ix / List of Abbreviations --- p.xiii / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Overview --- p.1 / Chapter 1.2 --- Original Contributions --- p.5 / Chapter 1.3 --- Chapter Outlines --- p.5 / Chapter Chapter 2 --- Fundamentals of Stepped-impedance Resonators --- p.7 / Chapter 2.1 --- Introduction --- p.7 / Chapter 2.2 --- Structures of Stepped-impedance Resonators --- p.8 / Chapter 2.3 --- Resonance Conditions Analysis --- p.10 / Chapter 2.4 --- Spurious Resonance Frequencies --- p.12 / Chapter 2.5 --- Applications of Stepped-impedance Resonator Techniques --- p.14 / Chapter Chapter 3 --- Coupled line and Partially Coupled Stepped-impedance Coupled Lines --- p.15 / Chapter 3.1 --- Introduction --- p.15 / Chapter 3.2 --- Coupled Line Model --- p.17 / Chapter 3.3 --- Analysis of Coupled Line --- p.20 / Chapter 3.4 --- Analysis of Partially Coupled Stepped-impedance Coupled Lines --- p.28 / Chapter 3.5 --- Dual Band Properties of Partially Coupled Stepped-impedance Coupled Lines --- p.29 / Chapter Chapter 4 --- A Novel Dual Band Balun Using Partially Coupled Stepped-impedance Coupled Lines --- p.30 / Chapter 4.1 --- Introduction --- p.30 / Chapter 4.2 --- Theory of Balun --- p.31 / Chapter 4.3 --- Analysis of the Proposed Dual Band Baluns --- p.37 / Chapter 4.4 --- Design Case Study for the Proposed Dual Band Balun --- p.43 / Chapter 4.5 --- Discussion --- p.50 / Chapter 4.6 --- Fabrication of a Balun Working at 900 MHz and 1.8 GHz --- p.56 / Chapter Chapter 5 --- Conclusion --- p.61 / Appendix 1 --- p.62 / Bibliography --- p.73

Zhu, Qiang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (p. 67-70). / Abstracts in English and Chinese. / Abstract --- p.ii / Acknowledgement --- p.iv / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Technology overview --- p.4 / Chapter 2.1 --- Associate background --- p.4 / Chapter 2.2 --- Physical layer --- p.6 / Chapter 2.2.1 --- Signal specification --- p.6 / Chapter 2.2.2 --- Spectrum sensing --- p.7 / Chapter 2.2.3 --- Cooperative sensing --- p.10 / Chapter 2.2.4 --- Interference temperature --- p.13 / Chapter 2.3 --- MAC layer --- p.14 / Chapter 2.3.1 --- Cooperative spectrum sharing --- p.14 / Chapter 2.3.2 --- Non-cooperative spectrum sharing --- p.16 / Chapter 2.3.3 --- Inter-network spectrum sharing --- p.16 / Chapter 2.3.4 --- Interference mitigation --- p.19 / Chapter 3 --- Power Regulation Protocol --- p.21 / Chapter 3.1 --- Introduction --- p.21 / Chapter 3.2 --- Unlicensed user coexistence --- p.24 / Chapter 3.3 --- Protection of licensed user --- p.30 / Chapter 3.4 --- Mobility issues --- p.33 / Chapter 3.5 --- Conclusion --- p.36 / Chapter 4 --- Wireless fading channels --- p.40 / Chapter 4.1 --- Model and assumption --- p.40 / Chapter 4.2 --- Outage probability upper bound --- p.43 / Chapter 4.3 --- Conclusion --- p.49 / Chapter 5 --- Simulation and numerical results --- p.51 / Chapter 5.1 --- Greedy algorithm --- p.51 / Chapter 5.2 --- Detection threshold tradeoff --- p.55 / Chapter 5.3 --- System performance analysis --- p.56 / Chapter 6 --- Conclusion and future work --- p.63 / Chapter 6.1 --- Conclusion --- p.63 / Chapter 6.2 --- Future work --- p.64 / Bibliography --- p.67

Our understanding of the magnetic fields of stars is nearly monopolized by knowledge of our own sun. Very-long baseline radio interferometry (VLBI) provides a means of directly imaging the radio coronae of other stars at a high enough resolution to discern discrete features, something not possible with other observational methods. It also allows the highest positional accuracy of any observational method available. This thesis details the VLBI study of two nearby radio-loud stars in close binary systems. Both systems were observed at numerous epochs spaced over a range of several months with the global-scale radio interferometer array the VLBA-HSA. These observations were combined with archival data from the National Radioastronomy Observatory (NRAO) Archive. The resulting positions, as well as previously published positions, were used to calculate a least-squares solution for all the orbital and astrometric parameters of both systems. This made it possible to determine the position of the physical star with respect to the radio emission in each image. The images of both stars were found to conform to theoretical emission produced by a model dipolar magnetosphere with a filled or partially-filled coronal loop.