In recent years, a plethora of wireless applications such as Bluetooth and Ultra-wide band (UWB) radio have emerged. This drastic increase has overly congested the spectrum. So, new networks such as cognitive radios that can solve the spectrum congestion have emerged. But in such networks, interference is introduced at the physical layer. We study and develop an interference model capable of capturing the intrinsic characteristics of the coexistence of such wireless applications. We investigate the effect of interference using device isolation probability or outage probability in presence Rayleigh and Nakagami-m fading at the physical layer and the impact of lognormal shadowing. We assume that the devices are either deterministically placed or randomly distributed according to a Poisson point process. We derive explicit expressions for the isolation probability and outage probability that give insight into how these channel impairments affect communication in these applications. We use computer simulations to validate our analytical results. / by Constantine Mukasa. / Thesis (M.S.C.S.)--Florida Atlantic University, 2013. / Includes bibliography. / Mode of access: World Wide Web. / System requirements: Adobe Reader.

Centralized light source (CLS) at the central office is an attractive solution for low-cost implementation of WDM-PON, as it eliminates the need of wavelength-specific transmitters and wavelength management at the optical network units (ONU). CLS can be realized by either a carrier-distributed scheme or a remodulation scheme. In both schemes, however, the upstream signal is susceptible to the interferometric crosstalk induced by the beating between the upstream signal and the back-reflected light due to the intrinsic Rayleigh Backscattering (RB), both of which are of the same wavelength. We propose and demonstrate a simple and novel scheme to suppress the RB noise in the carrier-distributed WDM-PON. Differential phase-shift keying (DPSK) is used as the upstream modulation format and the destructive port of the delay-interferometer (DI) is employed to demodulate the upstream DPSK signal. As the spectrum of RB towards the OLT is narrow due to the very narrow spectrum of the distributed carrier, the RB noise can be considerably rejected by the notch filter-like destructive port of the DI at the OLT, which is used simultaneously to demodulate the upstream DPSK signal. The scheme can also be extended to the application in the remodulation-based WDM-PON, as long as the downstream signal has a narrow spectrum (i.e. via reducing downstream modulation depth). A unique feature of the DPSK signal with reduced modulation depth (RMD-DPSK) is that it can be demodulated by DI's destructive port without extinction ratio (ER) degradation, whereas the demodulated signal from DI's destructive port has a very low ER and can be used as the source for upstream remodulation. We also proposed a novel offset-Manchester coding to suppress Rayleigh noise in electrical domain via a postdetection high-pass filter. / Foreseeing the rapidly growing demand for multimedia services and the trend of service convergence, the penetration of optical fiber in access network is an ultimate solution to break the last-mile bottleneck imposed by the 100-year-old copper network. One of the most promising solutions to realize optical access is the passive optical network (PON), in which the network infrastructure is shared by many subscribers and has no active elements between the central office and the customer. Thus a PON requires neither electrical power nor active management, leading to effective reduction in operational expenses. Time-division-multiplexed passive optical networks (TDM-PONs) such as Ethernet PON (EPON) and Gigabit PON (GPON) are being widely deployed in current fiber-based access networks for providing broadband access, offering triple-play services including video, data and voice. In the near future, wavelength-division-multiplexed passive optical network (WDM-PON) can be the enabler of the next-generation optical broadband access that requires large dedicated and symmetric bandwidth, data privacy, and upgrade flexibility. TDM-PONs also can benefit from WDM technologies for capacity upgrade. / With more diverse multimedia and data services available for broadband access, the access network has to be flexible enough to cope with various data or video delivery such as broadcast/multicast services, in addition to the point-to-point traffic. Multicast is more attractive, compared to broadcast, as it allows selective control of the connection for each subscriber individually. Multicast can be easily realized in TDM-PONs as it employs power-splitting at the remote node (RN). However, it is more challenging in WDM-PONs, due to the dedicated connection between the optical line terminal (OLT) and each ONU. Many studies have been carried out to solve this problem. The prior schemes either need relatively complicated multicast control and/or cannot support future proof 10-Gb/s symmetric point-to-point (PtP) transmission. We proposed a novel multicast control scheme for a WDM-PON with 10-Gb/s symmetric bit rate. The multicast data encoded in DPSK format is superimposed onto all PtP channels modulated in inverse return-to-zero format. With an athermal Dr being used at the ONU to demodulate the DPSK signal, the multicast data can be effectively disabled by slight detuning the laser wavelength at OLT, which has negligible effect on the PtP data. The proposed scheme differs from all the previous schemes in that, the multicast control is realized via the inherent wavelength management of WDM systems, rather than via any other additional adjustment such as ER, synchronization, and polarization. v / Xu, Jing. / Adviser: Lian-Kuan Chen. / Source: Dissertation Abstracts International, Volume: 73-06, Section: B, page: . / Thesis (Ph.D.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references. / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese.

Nowadays, broadband applications, such as interactive video and multimedia services, have further increased the demand of bandwidth, and thus make high speed multi-wavelength optical access network highly desirable. Wavelength division multiplexing passive optical network (WDM-PON) is a promising candidate to realize the next generation optical access networks due to its dedicated bandwidth for each subscriber and more flexible bandwidth management. As the network traffic is becoming more data-centric, more networking capabilities are required to provide the data service in a more flexible and reliable way. In this thesis, we have proposed and investigated several interesting optical multicast overlay schemes and network protection architectures for WDM-PONs. Optical multicast overlay technique can support the additional multicast transmission on the existing point-to-point data services, while network protection architectures can assure network availability with short traffic restoration time. We will briefly discuss our work in the following sub-topics. / Optical multicast overlay in WDM-PON: Traditional WDM-PONs support only two-way point-to-point data transmission between the optical line terminal (OLT) and the individual subscribers, via the respective designated set of wavelengths. To enhance the network flexibility, it is more desirable to support various different modes of data or video delivery such as broadcast and multicast, in addition to point-to-point transmissions. In this thesis, we systematically investigate the problems and propose our several feasible schemes to overlay multicast transmission onto the existing point-to-point traffic in a WDM-PON. In the first approach, the control of the multicast transmission is achieved by a simple polarization-assisted scheme at the OLT. By the cross-use of wavelengths, a separate path is provided for the multicast differential phase shift keying (DPSK) data from downstream point-to-point amplitude shift keying (ASK) data without additional light sources, which guarantees the transmission performances in both directions, since the upstream ASK signal is imposed on the multicast DPSK signal. We have also demonstrated its variant, in which an optical switch replaces the polarization-assisted control for multicast transmission. The second approach is based on the optical carrier suppression (OCS) technique at the OLT so as to generate the optical subcarriers or sidebands for multicast ASK data modulation. The downstream unicast data is modulated in DPSK format, which will be re-modulated with the upstream ASK data at the respective optical network unit (ONU). As the downstream unicast signal and the upstream signal are calTied on different fiber feeders, while the upstream signal and the multicast signal are carried on different subcarriers, though on the same fiber feeder, the possible Rayleigh backscattering effect is much alleviated. In the third scheme, by using subcarrier modulation technique, we have first successfully overlaid two independent multicast data streams simultaneously onto a WDM-PON, which is believed to further enhance the network capability for multiple destination traffic and improve the cost effectiveness for the future network. Finally, we will provide a comprehensive comparison on all the proposed schemes in this topic. / Survivable network architectures for WDM-PONs: A survivable WDM-PON architecture which can provide self-protection is attractive to avoid enormous loss in data and business due to fiber cuts. To facilitate the network management, the protection switching is realized at the OLT. In this thesis, a simple centrally controlled survivable WDM-PON architecture employing OCS technique is proposed. Protection switching at the OLT employs electrical switches to control the clock signal for the protection sub-carrier generation, via optical carrier suppression. Both distribution and feeder fibers are protected simultaneously. By employing inverse-RZ (IRZ) format for the downstream transmission and non-retum-to-zero (NRZ) for the upstream re-modulated signal, the optical network units are kept colorless and simple. On the other hand, wavelength division multiplexing/time division multiplexing (WDM/TDM) hybrid network, which combines TDM technology and WDM technology, can further increase the network reach, transmission capacity, and reduces the cost per subscriber. Although the bandwidth per subscriber in a WDM/TDM PON is less than that in a WDM-PON, it is still considered as a smooth migration from TDM-PON to WDM-PON. In this thesis, we have proposed a novel WDM/TDM PON architecture which can provide self-protection using a ring topology to connect the subscribers. Finally, we will provide a comprehensive comparison on all the proposed schemes in this topic. / Qiu, Yang. / Adviser: Chun-Kit Chan. / Source: Dissertation Abstracts International, Volume: 73-06, Section: B, page: . / Thesis (Ph.D.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 130-140). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese.

by Hung Wai. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves 69-[73]). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- All Optical Multi-Access Network --- p.1 / Chapter 1.2 --- Multi-access Techniques --- p.2 / Chapter 1.2.1 --- Wavelength-Division Multi-access (WDMA) --- p.2 / Chapter 1.2.2 --- Subcarrier Multi-Access (SCMA) --- p.3 / Chapter 1.2.3 --- Time-Division Multi-Access(TDMA) --- p.3 / Chapter 1.3 --- Numerical Modelling of Semiconductor Mode-locked laser --- p.4 / Chapter 1.4 --- Objective of this Thesis --- p.5 / Chapter 2 --- Optical TDMA networks --- p.7 / Chapter 2.1 --- Introduction --- p.7 / Chapter 2.2 --- OTDM --- p.8 / Chapter 2.3 --- Network Architecture --- p.9 / Chapter 2.3.1 --- Broadcast Networks --- p.9 / Chapter 2.3.2 --- Switch-based networks --- p.10 / Chapter 2.4 --- Key technologies for optical TDMA Network --- p.13 / Chapter 2.4.1 --- High Repetition Rate Short Pulse sources --- p.13 / Chapter 2.4.2 --- Multiplexer and de-multiplexers --- p.15 / Chapter 2.4.3 --- Optical Clock Recovery --- p.17 / Chapter 2.4.4 --- All optical logic gates --- p.18 / Chapter 2.5 --- Summary --- p.19 / Chapter 3 --- A Channel-Tunable Mode-locked Laser Transmitter for OTDM Networks --- p.20 / Chapter 3.1 --- Introduction --- p.20 / Chapter 3.2 --- Principle of Operation --- p.21 / Chapter 3.3 --- Experimental Demonstration --- p.23 / Chapter 3.4 --- The Channel Tuning Transient --- p.25 / Chapter 3.5 --- Experimental Investigation of channel-tuning transient --- p.28 / Chapter 3.6 --- Summary --- p.37 / Chapter 4 --- Modeling of Mode-Locked Semiconductor Laser --- p.38 / Chapter 4.1 --- Introduction --- p.38 / Chapter 4.2 --- Principle of Mode-Locking --- p.39 / Chapter 4.3 --- Simulation Model --- p.41 / Chapter 4.3.1 --- Travelling Wave Rate Equation Analysis --- p.41 / Chapter 4.3.2 --- Large Signal Time Domain Mode-locked Laser Model --- p.42 / Chapter 4.3.3 --- Modeling of Spontaneous Noise --- p.44 / Chapter 4.3.4 --- Modeling of Self-phase Modulation --- p.44 / Chapter 4.3.5 --- Frequency Dependent Gain Profile --- p.45 / Chapter 4.3.6 --- Computation Procedure --- p.45 / Chapter 4.4 --- Device Parameters --- p.47 / Chapter 4.5 --- Simulation Results on Passive Mode-locking --- p.48 / Chapter 4.5.1 --- Pulse Repetition Rate under Passive Mode-locking --- p.48 / Chapter 4.5.2 --- The effect of Differential Gain and Differential Absorption on Mode-locking Regimes --- p.50 / Chapter 4.5.3 --- The Effects of Linewidth Enhancement Factor and Ab- sorber Carrier Lifetime on Mode-locking Pulse Width --- p.53 / Chapter 4.6 --- Simulation Results on Hybrid and Subharmonic Mode-locking --- p.54 / Chapter 4.6.1 --- Modeling the Effect of Modulation on Absorber Section --- p.54 / Chapter 4.6.2 --- Modulation Phase Change Dynamics --- p.55 / Chapter 4.6.3 --- Subharmonc Mode-Locking Induced Amplitude Modulation --- p.62 / Chapter 4.7 --- Summary --- p.64 / Chapter 5 --- Conclusion --- p.66 / Chapter 5.1 --- Summary of the Thesis --- p.66 / Chapter 5.2 --- Future Work --- p.67 / Bibliography --- p.69

by Yip Chung Sun Danny. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves 52-54). / Abstracts in English and Chinese. / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Motivation --- p.1 / Chapter 1.2 --- Organization of Thesis --- p.5 / Chapter Chapter 2 --- Background --- p.6 / Chapter 2.1 --- Speech Codec --- p.6 / Chapter 2.2 --- RTP/UDP/IP Header Compression --- p.7 / Chapter 2.2.1 --- Real-Time Transport Protocol --- p.7 / Chapter 2.2.2 --- RTP/UDP/IP Header Compression --- p.8 / Chapter Chapter 3 --- Scenario and Assumptions --- p.10 / Chapter Chapter 4 --- Asynchronous Time Division Multiplexing Scheme --- p.14 / Chapter 4.1 --- Basic Idea --- p.14 / Chapter 4.1.1 --- Bandwidth Efficiency Improvement --- p.16 / Chapter 4.1.2 --- Delay Reduction --- p.18 / Chapter 4.2 --- Header Compression --- p.19 / Chapter 4.2.1 --- Header Compression Process --- p.21 / Chapter 4.2.2 --- Context Mapping Table --- p.23 / Chapter 4.3 --- Protocol --- p.28 / Chapter 4.3.1 --- UNCOMPRESSED_RTP Mini-Header --- p.30 / Chapter 4.3.2 --- SYNCHRONIZATION Mini-header --- p.31 / Chapter 4.3.3 --- COMPRESSED´ؤRTP Mini-header --- p.32 / Chapter 4.4 --- Connection Establishment --- p.33 / Chapter 4.4.1 --- Addressing Phase --- p.34 / Chapter 4.4.2 --- Connection Phase --- p.36 / Chapter 4.5 --- Software Implementation --- p.38 / Chapter Chapter 5 --- Simulation Results --- p.39 / Chapter 5.1 --- Simulation Model --- p.39 / Chapter 5.2 --- Voice Source Model --- p.41 / Chapter 5.3 --- Simulation Results --- p.43 / Chapter 5.3.1 --- Network Utilization and Delay Performance --- p.43 / Chapter 5.3.2 --- Number of Supported Connections --- p.45 / Chapter Chapter 6 --- Conclusion and Future Work --- p.49 / Bibliography --- p.52

by Chow Kin Kee. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references. / Abstracts in English and Chinese. / Abstract --- p.ii / Acknowledgment --- p.v / Table of Contents --- p.vi / Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- Ultra-short Pulse Generation in Semiconductor Lasers --- p.2 / Chapter 1.2 --- Wavelength Selection and Switching in Short Pulses Generated from Semiconductor Laser --- p.4 / Chapter 1.3 --- Structure of the Thesis --- p.6 / Reference --- p.8 / Chapter 2. --- Principles and Theories --- p.10 / Chapter 2.1 --- Principle of Wavelength Switching in Self-Seeded Laser --- p.11 / Chapter 2.2 --- Principle of Synchronous Injection Seeding of two Lasers --- p.15 / Chapter 2.3 --- Principle of Fast Spectral Improvement in DFB Laser with Optical Feedback --- p.17 / Chapter 2.4 --- Principle of Spectrally Resolved Analysis --- p.19 / Reference --- p.24 / Chapter 3. --- Switching Dynamics between Single-Mode and Dual-Mode Pulse Emissions from a Self-Seeded Laser Diode --- p.25 / Chapter 3.1 --- Introduction --- p.26 / Chapter 3.2 --- Experimental Details and Discussion --- p.28 / Chapter 3.3 --- Summary --- p.37 / Reference --- p.38 / Chapter 4. --- Spectrally Resolved Analysis of Fast Tuning in Single-Mode Pulses Generated from Mutually Injection-Seeded Fabry- Perot Laser Diodes --- p.40 / Chapter 4.1 --- Introduction --- p.41 / Chapter 4.2 --- Experimental Details and Discussion --- p.42 / Chapter 4.3 --- Summary --- p.51 / Reference --- p.52 / Chapter 5. --- Fast Spectral Improvement in Gain-Switched Pulses Generated from a Distributed Feedback Laser with Weak Optical Feedback --- p.54 / Chapter 5.1 --- Introduction --- p.55 / Chapter 5.2 --- Experimental Details and Discussion --- p.57 / Chapter 5.3 --- Summary --- p.65 / Reference --- p.66 / Chapter 6. --- Conclusion and Future Work --- p.67 / Chapter 6.1 --- Conclusion --- p.67 / Chapter 6.2 --- Future Works --- p.69 / Reference --- p.71 / Appendices --- p.A-l / Appendix A. List of Publications --- p.A-l / Appendix B. Modeling of Self-Seeded Fabry-Perot Laser --- p.A-2 / Appendix C. List of Figures --- p.A-4

In recent years, there has been rapid development in processing of quantum information using quantum states of light. The focus is now turning towards developing real-world implementations of technologies such as all-optical quantum computing and cryptography. The ability to consistently create and control the required single photon states of light is crucial for successful operation. Therefore, high performance single photon sources are very much in demand. The most common approach of generating the required nonclassical states of light is through spontaneous photon pair generation in a nonlinear medium. One photon in the pair is detected to "herald" the presence of the remaining single photon. For many applications the photons are required to be in pure indistinguishable states. However, photon pairs generated in this manner typically suffer from spectral correlations, which can lead to the production of mixed, distinguishable states. Additionally, these sources are probabilistic in nature, which fundamentally limits the number of photons that can be delivered simultaneously by independent sources and hence the scalability of these future technologies. One route to deterministic operation is by actively multiplexing several independent sources together to increase the probability of delivering a single photon from the system. This thesis presents the development and analysis of a multiplexing scheme of heralded single photons in high-purity indistinguishable states within an integrated optical fibre system. The spectral correlations present between the two photons in the pair were minimised by spectrally engineering each photonic crystal fibre source. A novel, in-fibre, broadband filtering scheme was implemented using photonic bandgap fibres. In total, two sources were multiplexed using a fast optical switch, yielding an 86% increase in the heralded count rate from the system.

Apresentamos e analisamos as técnicas de multiplexação TDM convencional e estatística, para concentração remota de dados. Como exemplo estudamos o problema da Rede Transdata, em função da taxa de utilização dos terminais (p) e do fator de compressão dos códigos (d). As principais conclusões são: - A técnica TDM convencional proporciona uma economia da ordem de 50% em canais de voz, sem introduzir atrasos. - A técnica TDM estatística proporciona uma economia da ordem de 70% em canais de voz, introduzindo cerca de 80 ms de atraso, por terminal. Em vista do exposto, os fabricantes, os usuários e as concessionárias de telecomunicações devem procurar realizar um trabalho integrado, no sentido de viabilizar a utilização de tais técnicas. / The conventional and statistical TDM techniques are presented and analysed for remote data concentration. The Transdata network problem was analysed according to terminal utilization factors (p) and code compression factors (d). As main conclusions, we have: - TDM conventional multiplexers can give a 50% voice channel economy without delay. - TDM statistical multiplexers can give a 70% voice channel economy with 80 ms delay per terminal. Due to these factors, the producer, user and telecommunications operating company should try to implement an integrated programme in order to make possible the utilization of such techniques.

by Lee Chi Man. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (leaves 63-65). / Abstracts in English and Chinese. / Chapter CHAPTER 1 --- INTRODUCTION --- p.5 / Chapter 1.1 --- Background --- p.5 / Chapter 1.1.1 --- Backbone network - Long haul mesh network problem --- p.5 / Chapter 1.1.2 --- Access network ´ؤ Last mile problems --- p.8 / Chapter 1.1.3 --- Network integration --- p.9 / Chapter 1.2 --- SUMMARY OF INSIGHTS --- p.10 / Chapter 1.3 --- Contribution of this thesis --- p.11 / Chapter 1.4 --- Structure of the thesis --- p.11 / Chapter CHAPTER 2 --- PREVIOUS PROTECTION ARCHITECTURES --- p.12 / Chapter 2.1 --- Introduction --- p.12 / Chapter 2.2 --- Traditional physical protection architectures in metro area --- p.13 / Chapter 2.2.1 --- Self healing ring --- p.17 / Chapter 2.2.2 --- Some terminology in ring protection --- p.13 / Chapter 2.2.3 --- Unidirectional path-switched rings (UPSR) [17] --- p.13 / Chapter 2.2.4 --- Bidirectional line-switched rings (BLSR) [17] --- p.14 / Chapter 2.2.5 --- Ring interconnection and dual homing [17] --- p.16 / Chapter 2.3 --- Traditional physical protection architectures in access networks --- p.17 / Chapter 2.3.1 --- Basic architecture in passive optical networks --- p.17 / Chapter 2.3.2 --- Fault management issue in access networks --- p.18 / Chapter 2.3.3 --- Some protection architectures --- p.18 / Chapter 2.4 --- Recent protection architectures on a ccess networks --- p.21 / Chapter 2.4.1 --- Star-Ring-Bus architecture --- p.21 / Chapter 2.5 --- Concluding remarks --- p.22 / Chapter CHAPTER 3 --- GROUP PROTECTION ARCHITECTURE (GPA) FOR TRAFFIC RESTORATION IN MULTI- WAVELENGTH PASSIVE OPTICAL NETWORKS --- p.23 / Chapter 3.1 --- Background --- p.23 / Chapter 3.2 --- Organization of Chapter 3 --- p.24 / Chapter 3.3 --- Overview of Group Protection Architecture --- p.24 / Chapter 3.3.1 --- Network architecture --- p.24 / Chapter 3.3.2 --- Wavelength assignment --- p.25 / Chapter 3.3.3 --- Normal operation of the scheme --- p.25 / Chapter 3.3.4 --- Protection mechanism --- p.26 / Chapter 3.4 --- Enhanced GPA architecture --- p.27 / Chapter 3.4.1 --- Network architecture --- p.27 / Chapter 3.4.2 --- Wavelength assignment --- p.28 / Chapter 3.4.3 --- Realization of network elements --- p.28 / Chapter 3.4.3.1 --- Optical line terminal (OLT) --- p.28 / Chapter 3.4.3.2 --- Remote node (RN) --- p.29 / Chapter 3.4.3.3 --- Realization of optical network unit (ONU) --- p.30 / Chapter 3.4.4 --- Protection switching and restoration --- p.31 / Chapter 3.4.5 --- Experimental demonstration --- p.31 / Chapter 3.5 --- Conclusion --- p.33 / Chapter CHAPTER 4 --- A NOVEL CONE PROTECTION ARCHITECTURE (CPA) SCHEME FOR WDM PASSIVE OPTICAL ACCESS NETWORKS --- p.35 / Chapter 4.1 --- Introduction --- p.35 / Chapter 4.2 --- Single-side Cone Protection Architecture (SS-CPA) --- p.36 / Chapter 4.2.1 --- Network topology of SS-CPA --- p.36 / Chapter 4.2.2 --- Wavelength assignment of SS-CPA --- p.36 / Chapter 4.2.3 --- Realization of remote node --- p.37 / Chapter 4.2.4 --- Realization of optical network unit --- p.39 / Chapter 4.2.5 --- Two types of failures --- p.40 / Chapter 4.2.6 --- Protection mechanism against failure --- p.40 / Chapter 4.2.6.1 --- Multi-failures of type I failure --- p.40 / Chapter 4.2.6.2 --- Type II failure --- p.40 / Chapter 4.2.7 --- Experimental demonstration --- p.41 / Chapter 4.2.8 --- Power budget --- p.42 / Chapter 4.2.9 --- Protection capability analysis --- p.42 / Chapter 4.2.10 --- Non-fully-connected case and its extensibility for addition --- p.42 / Chapter 4.2.11 --- Scalability --- p.43 / Chapter 4.2.12 --- Summary --- p.43 / Chapter 4.3 --- Comparison between GPA and SS-CPA scheme --- p.43 / Chapter 4.1 --- Resources comparison --- p.43 / Chapter 4.2 --- Protection capability comparison --- p.44 / Chapter 4.4 --- Concluding remarks --- p.45 / Chapter CHAPTER 5 --- MUL 77- WA VELENGTH MUL TICAST NETWORK IN PASSIVE OPTICAL NETWORK --- p.46 / Chapter 5.1 --- Introduction --- p.46 / Chapter 5.2 --- Organization of this chapter --- p.47 / Chapter 5.3 --- Simple Group Multicast Network (SGMN) scheme --- p.47 / Chapter 5.3.1 --- Network design principle --- p.47 / Chapter 5.3.2 --- Wavelength assignment of SGMN --- p.48 / Chapter 5.3.3 --- Realization of remote node --- p.49 / Chapter 5.3.3 --- Realization of optical network unit --- p.50 / Chapter 5.3.4 --- Power budget --- p.51 / Chapter 5.4 --- A mulTI- wa velength a ccess network with reconfigurable multicast …… --- p.51 / Chapter 5.4.1 --- Motivation --- p.51 / Chapter 5.4.2 --- Background --- p.51 / Chapter 5.4.3 --- Network design principle --- p.52 / Chapter 5.4.4 --- Wavelength assignment --- p.52 / Chapter 5.4.5 --- Remote Node design --- p.53 / Chapter 5.4.6 --- Optical network unit design --- p.54 / Chapter 5.4.7 --- Multicast connection pattern --- p.55 / Chapter 5.4.8 --- Multicast group selection in OLT --- p.57 / Chapter 5.4.9 --- Scalability --- p.57 / Chapter 5.4.10 --- Experimental configuration --- p.58 / Chapter 5.4.11 --- Concluding remarks --- p.59 / Chapter CHAPTER 6 --- CONCLUSIONS --- p.60 / LIST OF PUBLICATIONS: --- p.62 / REFERENCES: --- p.63

Huang Yi. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (leaves 97-98). / Abstracts in English and Chinese. / Abstract --- p.i / 摘要 --- p.iii / Acknowledgments --- p.iv / Contents --- p.v / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- CTDMA for Multicarrier Communication Systems --- p.2 / Chapter 1.2 --- Contributions of This Thesis --- p.4 / Chapter 1.3 --- Outline of This Thesis --- p.6 / Chapter Chapter 2 --- Multicarrier Communication Systems --- p.8 / Chapter 2.1 --- Multicarrier Modulation (MCM) Scheme versus Single Carrier Modulation (SCM) Scheme --- p.9 / Chapter 2.2 --- Orthogonal Frequency Division Multiplexing (OFDM) Systems --- p.12 / Chapter 2.3 --- Multicarrier CDMA --- p.16 / Chapter Chapter 3 --- Data Rate Guaranteed CTDMA for Multicarrier Communication Systems --- p.21 / Chapter 3.1 --- Code Time Division Multiple Access (CTDMA) --- p.22 / Chapter 3.2 --- Mathematical Programming --- p.28 / Chapter 3.3 --- Near Optimal CTDMA Approach --- p.32 / Chapter 3.4 --- Ad Hoc CTDMA Approach --- p.48 / Chapter 3.5 --- Lower Bound on Optimization --- p.61 / Chapter 3.6 --- Performance Evaluation --- p.64 / Chapter Chapter 4 --- Code Assignment for Multicarrier Communication Systems with Quantized Feedback --- p.73 / Chapter 4.1 --- Code Assignment for Fully Loaded Systems --- p.74 / Chapter 4.2 --- Random Orthogonal Codes --- p.76 / Chapter 4.3 --- Wireless Fading Channel Model --- p.78 / Chapter 4.4 --- Performance Evaluation of One-to-one Assignment --- p.80 / Chapter 4.5 --- Code Assignment for Non-fully Loaded Systems --- p.89 / Chapter 4.6 --- Performance Evaluation of Multiple-to-one Assignment --- p.90 / References --- p.97