| Driven by both high speed increase of IP service and vast bandwidth of WDM, conventional optical networks are evolving into next generation optical Internet (NGOI) based on IP over WDM. The evolution is expanding from backbone networks into metropolis area networks, and even into access networks. Taking full advantage of high speed optical switching and flexible electronic processing, optical burst switching (OBS) has been considered as a feasible and competitive core technology to construct NGOI. So far as we know now, most of researches are concentrated on improving the performances of an OBS network (OBSN) itself so as to provide quality of service (QoS) guarantees for conventional multimedia services. However, current technologies and schemes haven't considered the solution achieving QoS support for these special services, e.g., supermedia, teleoperation, etc, which will be carried on NGOI. On the other hand, there is still no universal performance analysis tools and design platform for the OBSN. Therefore, the works in this dissertation focus on proposing and studying in depth the mechanisms, algorithms and design for optical burst assembly, scheduling, resource configuration, contention solution, transmission and so on, oriented to special services. Moreover, the universal OBSN performance simulation and design platform has been constructed, and then simulation and detailed analyses for the demonstration networks have been given.In Chapter 1, the development and evolution of optical networks are reviewed systemically, and then it is given prominence to the importance of QoS guarantees for special services. Moreover, the current research status and related key techniques of OBS are summarized systemically.In Chapter 2, the conception for unit input bit rate is introduced for the first time. And then, based on self-similar process, the parallel multi-packet sources (PMPS) service traffic model is first presented and built at each ingress edge router (ER). The relations and influence of key parameters on the model are discussed synthetically. The simulation results show that the model and method presented in the chapter can unify quantified measures for the network performances, characterize accurately the service traffic entering an ER, and lay a foundation for building a universal OBSN performance simulation and design platform.The model of OBS ER is studied mainly in Chapter 3 in order to satisfy the requirements of special services, especially for the specific algorithm, mechanism and schemes about burst assembly and scheduling. New edge delay models are set up, and a novel burst assembly algorithm with a buffer safety space (BSS) is proposed for the first time. Moreover, for the BSS algorithm, it is the first time that a united stabilizing scheme for edge delay (USS-ED) is carried out to support strongly achieving stable time delay for special services. Besides, a previous reducing synchronization scheme (pRS), combined with BSS algorithm, is also put forward to improve burst scheduling at first time.Chapter 4 consentrates on the model of OBS core router (CR), oriented to special services. The buffer structures, specific algorithm, mechanism and schemes are all designed and their effects on burst transmission are estimated. Firstly, a set of novel models for burst traffic, burst contention and CR time delay is presented. Subsequently, the novel structure integrating buffer and switch is proposed with effective range extending to multi-fiber networks for the first time. And then, a multi-constraint and...
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