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研究生： 潘仁義
Jen-yi Pan
論文名稱： 新一代個人通訊自身路由核心網路與服務之展望
Self-routing core network and service provision in next generation personal communications
指導教授： 黃能富
Nen-Fu Huang
口試委員:
學位類別： 博士
Doctor
系所名稱： 電機資訊學院 - 資訊工程學系
Computer Science
論文出版年： 2002
畢業學年度： 90
語文別： 英文
論文頁數： 96
中文關鍵詞： 洗牌交換網路 、星狀偶合器 、核心網路 、核心無狀態 、光封包網路 、自身路由 、多方簡訊傳送 、群播
外文關鍵詞： Shuffle-exchange network, Star coupler, Core network, Core stateless, Optical packet network, Self-routing, Multiple-receivers short messages, Multi-destination multicast
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    • 時至今日，個人通訊開啟了電信產業的新紀元，並普及至每個角落。透過個人通訊系統取得資訊化服務已成為無線通訊業者未來必備的重要服務項目。顧客們不僅希望能在任何時間任何地點能享受語音通訊，同時也希望能得到豐富多樣的資訊服務。
    本篇論文主要考慮在新一代個人通訊下的核心網路架構與資訊化服務。首先，我們提出光波長多工元件構成的可擴充蜂巢式核心網路，以提供大量的頻寬。這個網路基於洗牌交換式的連結架構，具有自身路由的能力，可簡化群播及資源保留的運作。同時，此網路具有核心無狀態的特點，因此通訊端移動造成的網路暫態跟信號訊務得以減少。

    接下來，討論新一代個人通訊之多方短訊服務。我們將列舉數個機制，以維持短訊服務中心與家地點登記處的位置資訊維持一致性。同時，也介紹我們對於移動終端傳送多方簡訊的方式。最後，我們模擬並評估這些方式的效能。模擬的結果顯示，我們所提出的堅決一致性的方式，可藉由校調參數，而達到最好的效率。而我們所提出的核心網路架構，也能有效的提供群播的能力。

    本論文不僅深入探討新一代的個人通訊系統與服務，同時也提供了一個可參考的研究典範，促進行動通訊科技的發展。

    Today, almost everyone has a personal computing appliance. The rise of personal communications signals the start of a new era in telecommunication. Access to information services via personal communication system also becomes an essential part of future wireless operators’ service offerings. Everyone wants to enjoy not only voice communication but also rich data services at anytime and anywhere while owning mobility.
    This dissertation focuses on aspects of architecture and services of the next generation personal communications. At first, a scalable Wavelength Division Multiplexing cellular core network is proposed to provide plenty of bandwidth up to Giga-bits/sec, even to Tera-bits/sec. This shuffle-exchange network has self-routing capability, which simplifies multicasting and resource reservation. Meanwhile, the network is core stateless, and hence transition states and signaling traffic can be reduced. The network also supports atomic handoffs, whose transition time is bounded.

    Then, short message service of multi-receivers for the next generation personal communications is discussed. We demonstrate some approaches to maintain the location information of short message service center consistent to the home location register, and illustrate our scheme for mobile terminated short message transfer. Finally, we simulate and evaluate these multicasting solutions. The result of simulation indicates that the proposed strong consistency approaches have optimal efficiency by adjusting parameters, and the proposed architecture efficiently provides multicast functionality in our cellular backbone network.

    This work not only provide a further insight on the issues of next generation personal communication system, but also demonstrate a referable methodology to propose and analyze a future personal communication system, which can promote the technology of mobile computing.

    ABSTRACT I ACKNOWLEDGEMENT III CONTENTS IV LIST OF FIGURES VII LIST OF TABLES X CHAPTER 1 INTRODUCTION 1 1.1 OVERVIEW 1 1.2 NETWORK ARCHITECTURE 3 1.3 SHORT MESSAGE SERVICE ISSUES 7 1.4 ORGANIZATION OF THIS DISSERTATION 10 CHAPTER 2 SELF-ROUTING CORE NETWORK 11 2.1 SHUFFLE-EXCHANGE NETWORK AND CONSTRUCTION 11 2.1.1 Addressing method 11 2.1.2 Shuffle-exchange network concept 12 2.1.3 Basic unit of proposed network 14 2.1.4 Construction 16 2.1.5 Link complexity 17 2.2 PROPOSED ROUTING ALGORITHM 17 2.2.1 Exchange action 17 2.2.2 Shuffle action 18 2.2.3 A routing example 19 2.2.4 Some characteristics of the backbone network 20 2.2.5 Pseudo routing nodes 21 2.3 ORGANIZABLE MOBILE SWITCH ARCHITECTURE 22 2.4 MOBILITY MANAGEMENT AND ATOMIC HANDOFF 26 2.4.1 Location updating and paging 26 2.4.2 Handoffs and packet flows 27 2.4.3 Atomic handoff procedure 28 2.5 PERFORMANCE 31 2.5.1 Link complexity and number of star couplers 31 2.5.2 Average number of hops 32 2.5.3 Coupler/link load 33 2.5.4 Shuffle link load 33 2.5.5 Exchange link load 34 2.5.6 Delay and throughput 34 2.5.7 Atomic and fast handoff 39 CHAPTER 3 MULTICAST SHORT MESSAGES SERVICES 50 3.1 TRADITIONAL UNICAST SOLUTIONS 51 3.2 TRADITIONAL MULTICAST SOLUTIONS 51 3.3 PROPOSED MULTI-DESTINATION MULTICAST SOLUTIONS 52 3.4 GROUP MEMBER STATUS AND LOCATION TRACKING 53 3.5 MULTIDESTINATION MULTICAST 58 3.6 MULTICAST COST METRICS AND SIMULATIONS 60 3.6.1 Evaluation metrics 60 3.6.2 Simulation results for several group member status and location tracking approaches 62 3.6.3 Simulation result for multicast terminating 71 CHAPTER 4 CONCLUSION AND FUTURE WORKS 73 4.1 CONCLUSIONS 73 4.2 FUTURE WORKS 74 APPENDIX 76 BIBLIOGRAPHY 78

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