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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

A quasi-static routing scheme for cross-connected storage area network.

January 2001 (has links)
Yang Qin. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves [65]-[67]). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Thesis Overview --- p.7 / Chapter 2 --- Storage Area Network(SAN) --- p.9 / Chapter 2.1 --- Fibre Channel Protocol --- p.11 / Chapter 2.2 --- Switched Fibre Channel SAN --- p.16 / Chapter 2.2.1 --- Cascaded Topology --- p.17 / Chapter 2.2.2 --- Meshed Topology --- p.17 / Chapter 2.2.3 --- Cross-Connected Topology --- p.19 / Chapter 2.2.4 --- Routing Scheme in Cross-Connected SAN --- p.21 / Chapter 3 --- Path Switching --- p.24 / Chapter 3.1 --- Cross-path Switching Principle --- p.24 / Chapter 3.2 --- Capacity Assignment --- p.28 / Chapter 3.3 --- Route Assignment --- p.31 / Chapter 4 --- Path Switching in Cross-Connected SAN --- p.34 / Chapter 4.1 --- Path Switching in SAN --- p.34 / Chapter 4.1.1 --- Connectionless Traffic --- p.36 / Chapter 4.1.2 --- Connection-Oriented Traffic --- p.39 / Chapter 4.1.3 --- Mixed Traffic --- p.47 / Chapter 4.2 --- Measurement Based Algorithm --- p.53 / Chapter 4.3 --- Repetition Rate --- p.59 / Chapter 5 --- Conclusion --- p.63
42

Switching-wavelength picosecond pulses and their applications in photonic processing of high-speed analog and digital signals. / CUHK electronic theses & dissertations collection

January 2003 (has links)
Lee Ka-lun. / "September 2003." / Thesis (Ph.D.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references. / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese.
43

Optically-controlled generation of wavelength-tunable pulses from semiconductor and fiber lasers using a nonlinear optical loop mirror.

January 2001 (has links)
Tang Wing-Wa. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references. / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.iv / Table of contents --- p.v / List of figure --- p.viii / Chapter 1. --- Introduction --- p.1 / Chapter 1.1. --- Introduction to ultrashort optical pulse generation --- p.2 / Chapter 1.2. --- Introduction to wavelength-tunable pulse generation --- p.5 / Chapter 1.3. --- Introduction to chapters --- p.7 / Chapter 2. --- Principles and Theories --- p.11 / Chapter 2.1. --- Principle of dispersion tuning --- p.12 / Chapter 2.2. --- SOA nonlinear optical loop mirror --- p.16 / Chapter 2.3. --- Principle of dispersion tuning in harmonically mode-locked fiber laser using nonlinear optical loop mirror --- p.19 / Chapter 2.4. --- Principle of re-configurable multi-wavelength pulses generationin a self-seeded laser diode incorporating SOA loop mirror --- p.22 / Chapter 3. --- Rational harmonic mode-locking of an optically triggered fiber laser incorporating a non-linear optical loop modulator --- p.25 / Chapter 3.1. --- Introduction --- p.26 / Chapter 3.2. --- Experiment --- p.27 / Chapter 3.3. --- Result and discussion --- p.30 / Chapter 3.4. --- Summary --- p.37 / Chapter 4. --- Generation of amplitude-equalized optical pulses from a rational harmonic mode-locked fiber laser incorporating a SOA loop modulator --- p.40 / Chapter 4.1. --- Introduction --- p.41 / Chapter 4.2. --- Experiment --- p.42 / Chapter 4.3. --- Result and discussion --- p.44 / Chapter 4.4. --- Summary --- p.47 / Chapter 5. --- Optically controlled dispersion-tuning in harmonically mode-locked erbium doped fiber laser using SOA nonlinear loop modulator --- p.49 / Chapter 5.1. --- Introduction --- p.50 / Chapter 5.2. --- Experiment --- p.51 / Chapter 5.3. --- Result and discussion --- p.54 / Chapter 5.4. --- Summary --- p.58 / Chapter 6. --- Alternate method of constructing harmonically mode-locked fiber laser incorporating SOA nonlinear loop modulator --- p.60 / Chapter 6.1. --- Introduction --- p.61 / Chapter 6.2. --- Experiment --- p.62 / Chapter 6.3. --- Result and discussion --- p.65 / Chapter 6.4. --- Summary --- p.69 / Chapter 7. --- Optically re-configurable multi-wavelength pulse source constructed from a self-seeded laser diode --- p.71 / Chapter 7.1. --- Introduction --- p.72 / Chapter 7.2. --- Experiment --- p.74 / Chapter 7.3. --- Result and discussion --- p.77 / Chapter 7.4. --- Summary --- p.82 / Chapter 8. --- Tunable alternating multi-wavelength pulse source constructed using non-linear optical control of wavelength switching in a self-seeded laser diode --- p.85 / Chapter 8.1. --- Introduction --- p.86 / Chapter 8.2. --- Experiment --- p.87 / Chapter 8.3. --- Result and discussion --- p.89 / Chapter 8.4. --- Summary --- p.92 / Chapter 9. --- Conclusion and future works --- p.94 / Chapter 9.1. --- Conclusion --- p.94 / Chapter 9.2. --- Possible future works --- p.98 / Appendix / List of publications --- p.A-1
44

Switching considerations in storage networks.

January 2003 (has links)
by Leung Yiu Tong. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 96-98). / Abstracts in English and Chinese. / Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- Motivation --- p.1 / Chapter 1.2 --- Thesis Organization --- p.3 / Chapter 2. --- Storage Network Fundamentals --- p.4 / Chapter 2.1 --- Storage Network Topology --- p.4 / Chapter 2.1.1 --- Direct Attached Storage (DAS) --- p.5 / Chapter 2.1.2 --- Network Attached Storage (NAS) --- p.7 / Chapter 2.1.3 --- Storage Area Network (SAN) --- p.9 / Chapter 2.1.3.1 --- SAN and the Fibre Channel Protocol --- p.11 / Chapter 2.1.4 --- Summary on Storage Network Topology --- p.12 / Chapter 2.2 --- Storage Protocol --- p.15 / Chapter 2.2.1 --- Fibre Channel --- p.15 / Chapter 2.2.1.1 --- Fibre Channel over IP (FCIP) --- p.17 / Chapter 2.2.1.2 --- Internet Fibre Channel Protocol (iFCP) --- p.19 / Chapter 2.2.2 --- Internet SCSI (iSCSI) --- p.20 / Chapter 2.2.3 --- InfiniBand --- p.22 / Chapter 2.2.4 --- Review on Storage Network Protocol --- p.25 / Chapter 2.3 --- Standard Organization --- p.27 / Chapter 2.4 --- Summary --- p.28 / Chapter 3. --- Switching Design for Storage Networks --- p.30 / Chapter 3.1. --- Shared Bus Design --- p.32 / Chapter 3.2. --- Time Division Switch --- p.36 / Chapter 3.3. --- Share Buffer Memory Switch --- p.37 / Chapter 3.3.1 --- Parallel Memory Array --- p.40 / Chapter 3.3.2 --- Distributive Storage --- p.43 / Chapter 3.4. --- Crossbar Switch --- p.45 / Chapter 3.4.1 --- Arbitrated Crossbar vs. Buffered Crossbar --- p.46 / Chapter 3.4.1.1 --- Arbitrated Crossbar Switch --- p.47 / Chapter 3.4.1.2 --- Buffered Crossbar Switch --- p.48 / Chapter 3.4.2 --- Switch Scheduling --- p.49 / Chapter 3.4.2.1 --- Bipartite Matching --- p.50 / Chapter 3.4.2.2 --- Token-based Distributive Scheduling --- p.53 / Chapter 3.4.2.3 --- Resource Counting using Semaphore --- p.56 / Chapter 3.5. --- Algebraic Switches --- p.60 / Chapter 3.5.1 --- Switching by Conditionally Nonblocking Properties --- p.61 / Chapter 3.5.2 --- Self-Routing Mechanism with Zero-Bit Buffering --- p.64 / Chapter 3.5.3 --- Multistage Interconnection of Self-routing Concentrators --- p.69 / Chapter 3.6. --- Summary --- p.73 / Chapter 4. --- Investigating Switching Issue in Storage Networks --- p.74 / Chapter 4.1 --- Choosing a Suitable Switch --- p.74 / Chapter 4.2 --- Quality of Service (QoS) --- p.76 / Chapter 4.3 --- Multicasting --- p.77 / Chapter 4.3.1 --- Crossbar Switch --- p.78 / Chapter 4.3.2 --- Shared-Buffer Memory Switches --- p.80 / Chapter 4.3.3 --- Algebraic Switch --- p.82 / Chapter 4.3.4 --- Application on Multicast Transmission --- p.86 / Chapter 4.4 --- Load Balancing Mechanism --- p.87 / Chapter 4.5 --- Optimization on Storage Utilization --- p.91 / Chapter 4.6 --- Summary --- p.93 / Chapter 5. --- Conclusion and Summary of Original Contributions --- p.94
45

Fair routing for resilient packet rings.

January 2003 (has links)
Li Cheng. / Thesis submitted in: November 2002. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 57-61). / Abstracts in English and Chinese. / Chapter CHAPTER 1 --- INTRODUCTION --- p.1 / Chapter 1.1 --- The Evolution of Ring Network Technologies --- p.1 / Chapter 1.1.1 --- Token Ring Technology --- p.1 / Chapter 1.1.2 --- Resilient Packet Ring Technology --- p.4 / Chapter 1.2 --- Optimal Routing --- p.7 / Chapter 1.3 --- Fairness --- p.8 / Chapter 1.4 --- Outline of Thesis --- p.10 / Chapter CHAPTER 2 --- OPTIMAL ROUTING --- p.11 / Chapter 2.1 --- Throughput Analysis --- p.11 / Chapter 2.2 --- Numerical Results --- p.13 / Chapter CHAPTER 3 --- OPTIMAL FAIR ROUTING --- p.19 / Chapter 3.1 --- Overview --- p.19 / Chapter 3.2 --- Max-min Fair Allocation --- p.19 / Chapter 3.3 --- Proportionally Fair Allocation --- p.32 / Chapter 3.4 --- Numerical Results --- p.33 / Chapter CHAPTER 4 --- TRADEOFF ANALYSIS --- p.40 / Chapter 4.1 --- Tradeoff between Throughput and Max-min Fairness --- p.40 / Chapter 4.2 --- Numerical Results --- p.42 / Chapter 4.3 --- Tradeoff between Throughput and Utility --- p.47 / Chapter 4.4 --- Numerical Results --- p.48 / Chapter CHAPTER 5 --- CONCLUSION --- p.54 / Chapter 5.1 --- Summary --- p.54 / Chapter 5.2 --- Discussion and Future Work --- p.55 / BIBLIOGRAPHY --- p.57
46

MEMS micro-bridge actuator for potential application in optical switching

Michael, Aron, Electrical Engineering & Telecommunications, Faculty of Engineering, UNSW January 2007 (has links)
In this thesis, the development of a novel electro-thermally actuated bi-stable out-of-plane two way actuated buckled micro-bridge for a potential application in optical switching is presented. The actuator consists of a bridge supported by 'legs' and springs at its four corners. The springs and the bridge are made of a tri-layer structure comprising of 2.5??m thick low-stress PECVD oxide, 1??m thick high-stress PECVD oxide and 2??m thick heavily phosphorus doped silicon. The legs, on the other hand, are 2??m thick single layer heavily phosphorus doped silicon. Both legs and springs provide elastically constrained boundary conditions at the supporting ends, without of which important features of the micro-bridge actuator could not have been achieved. This microbridge actuator is designed, simulated using ANSYS, fabricated and tested. The results from the testing have shown a good agreement with analytical prediction and ANSYS simulation. The actuator demonstrated bi-stability, two-way actuation and 31??m out-of-plane movement between the two-states using low voltage drive. Buckled shape model, design method for bi-stability and thermo-mechanical model are developed and employed in the design of the micro-bridge. These models are compared with Finite Element (FE) based ANSYS simulation and measurements from the fabricated micro-bridge and have shown a good agreement. In order to demonstrate the potential application of this actuator to optical switching, ANSYS simulation studies have been performed on a micro-mirror integrated with the micro-bridge actuator. From these studies, the optimum micro-mirror size that is appropriate for the integration has been obtained. This optimal mirror size ensures the important features of the actuator. Mirror fabrication experiments in (110) wafer have been carried out to find out the appropriate compensation mask size for a given etch depth and the suitable wafer thickness that can be used to fabricate the integrated system.
47

Highly integrated polymer photonic switching and interconnects

Wang, Xiaolong 28 August 2008 (has links)
Not available / text
48

Traffic flow management for RSVP/ATM edge devices

Choi, Myung Cheon 08 1900 (has links)
No description available.
49

MEMS micro-bridge actuator for potential application in optical switching

Michael, Aron, Electrical Engineering & Telecommunications, Faculty of Engineering, UNSW January 2007 (has links)
In this thesis, the development of a novel electro-thermally actuated bi-stable out-of-plane two way actuated buckled micro-bridge for a potential application in optical switching is presented. The actuator consists of a bridge supported by 'legs' and springs at its four corners. The springs and the bridge are made of a tri-layer structure comprising of 2.5??m thick low-stress PECVD oxide, 1??m thick high-stress PECVD oxide and 2??m thick heavily phosphorus doped silicon. The legs, on the other hand, are 2??m thick single layer heavily phosphorus doped silicon. Both legs and springs provide elastically constrained boundary conditions at the supporting ends, without of which important features of the micro-bridge actuator could not have been achieved. This microbridge actuator is designed, simulated using ANSYS, fabricated and tested. The results from the testing have shown a good agreement with analytical prediction and ANSYS simulation. The actuator demonstrated bi-stability, two-way actuation and 31??m out-of-plane movement between the two-states using low voltage drive. Buckled shape model, design method for bi-stability and thermo-mechanical model are developed and employed in the design of the micro-bridge. These models are compared with Finite Element (FE) based ANSYS simulation and measurements from the fabricated micro-bridge and have shown a good agreement. In order to demonstrate the potential application of this actuator to optical switching, ANSYS simulation studies have been performed on a micro-mirror integrated with the micro-bridge actuator. From these studies, the optimum micro-mirror size that is appropriate for the integration has been obtained. This optimal mirror size ensures the important features of the actuator. Mirror fabrication experiments in (110) wafer have been carried out to find out the appropriate compensation mask size for a given etch depth and the suitable wafer thickness that can be used to fabricate the integrated system.
50

The multiple access broadcast channel : protocol and capacity considerations

January 1978 (has links)
by John Ippocratis Capetanakis. / Originally presented as the author's thesis, (Ph.D.) in the M.I.T. Dept. of Electrical Engineering and Computer Science, 1978. / Prepared under Office of Naval Research Contract ONR-N00014-64-C-1183. / Includes bibliographical references.

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