臺灣博碩士論文加值系統

隨著無線通訊技術的進步與無線終端設備(如：行動電話、PDA、筆記型電腦)價格的低廉，使用者便可隨時隨地，甚至在交通工具上連結資訊網路，自在地存取所需的網際網路服務，以帶來莫大的便利性。一直以來如何達成無所不在(Ubiquitous Computing)的網路環境，為目前多數人所關切的發展議題；但建置此環境仍需多方面技術上的整合，因此透過整合WiMAX無線技術之特性，使得多方面與環境媒合(如：傳輸距離長、高頻寬)，便能促進無所不在的網路環境之相關發展。

本研究論文之主要目的在於WiMAX無線網路環境下，研究嵌入式之行動應用系統與WiMAX架構相關之車載網路應用，並結合於智慧型行動載具上。本研究論文之內容包含下列三個部分：研發嵌入式WiMAX模組、提出行動應用系統之架構(Framework)，以及整合WiMAX模組與智慧型行動系統。透過本研究論文之成果，將可應用WiMAX通訊協定及行動式網路之相關服務，並將現有行動載具提升為智慧型無線存取之行動載具，同時結合嵌入式系統開放架構特性與優點，提供使用者除享有無線網路接取環境外，還能具備高效能以及自動化服務等優點。

本研究論文所提出行動應用系統之架構中，Session Configuration及A/V OpenCORE為自行研發之模組。透過Session Configuration模組，在發生Session Lost時，可降低5.24%之平均延遲時間。透過A/V OpenCORE模組之處理，在執行單一影音串流服務時，可以提升23.29%之效能；另一方面，測試依序執行三種影音串流服務時，透過A/V OpenCORE模組可以提升15.95%之效能。本研究論文除整合WiMAX模組與智慧型行動系統外，也驗證了所提出行動應用系統之Session Configuration及A/V OpenCORE模組，可提升整體效能，達到高效能之運作。

With the advances in wireless technology and the wireless terminal devices (such as: mobile phone, PDA, laptop) low price, the user can access anywhere, even in the transportation, to links to the information network, and freely access to the necessary Internet service in order to bring a great convenience. Has been how to achieve network Ubiquitous Computing environment for the majority of people are concerned about the current development issues, but it still has the needs of the integration of various technologies to build this environment, so the integration of the characteristics (such as: long distance, high bandwidth) of WiMAX wireless technology can accommodate to the wireless environment to promote related development of the ubiquitous network.

The main purpose of this thesis was aimed at WiMAX wireless network environment, and researches the embedded pervasive systems and vehicular applications of related WiMAX network architecture, and combines to intelligent transportations. The content of this research contains the following three parts: research and development of embedded WiMAX modules, proposition of pervasive system framework, and the integration of WiMAX system modules and intelligent pervasive system. With this study achievement, it will apply the WiMAX protocols and the related services of pervasive network, and upgrades existing transportations to intelligent wireless access transportations, and combines with characteristics and the advantages of open architecture of the embedded system to provide the users with the enjoyment of the wireless access network environment, and also has the advantages of high performance and automatic services.
Session Configuration and A/V OpenCORE modules of the pervasive system are proposed by this thesis. When the event of Session Lost occurred, the average delay time can be reduced 5.24% with the Session Configuration module. Through the A/V OpenCORE module processing, in the implementation of a single video streaming service, the A/V OpenCORE module can enhance the 23.29% throughput; On the other hand, in testing the implementation of the three video streaming services in turn, the A/V OpenCORE module can enhance the 15.95% throughput. This research not only integrates the WiMAX modules and intelligent pervasive system, but also verifies that the proposed Session Configuration and A/V OpenCORE modules of pervasive system will enhance the overall effectiveness and the execution to achieve high performance.

摘要 I
ABSTRACT III
LIST OF FIGURES VII
LIST OF TABLES IX
CHAPTER 1 INTRODUCTION 1
1.1 MOTIVATION 1
1.2 ORGANIZATION OF THIS THESIS 4
CHAPTER 2 BACKGROUND KNOWLEDGE 5
2.1 USER AGENT SCOPE 5
2.1.1 Global Position System (GPS) 6
2.1.2 3G Telecommunication System 7
2.1.3 The Core of 3G 9
2.2 EMBEDDED OPERATING SYSTEM 11
2.2.1 Windows CE Platform 11
2.2.2 Embedded Linux 13
2.2.3 Environment Test-bed – ARM 16
2.3 WIMAX 20
2.3.1 WiMAX Network Architecture 23
2.3.2 Mobile WiMAX Architecture 27
2.4 VEHICULAR NETWORK 30
2.4.1 Network Mobility (NEMO) 32
2.4.2 Session Initiation Protocol (SIP) 36
CHAPTER 3 EMBEDDED WIMAX-BASED PERVASIVE SYSTEM 43
3.1 SYSTEM OVERVIEW 43
3.2 HARDWARE LAYER 44
3.3 OS LAYER 46
3.3.1 Device Drivers of OS Layer 47
3.3.2 Kernel of OS Layer 47
3.4 FRAMEWORK LAYER 48
3.4.1 The Integrated Planes of Pervasive Framework 49
3.4.2 Library of Pervasive Framework 60
3.5 APPLICATION LAYER 62
CHAPTER 4 SYSTEM DESIGN AND PERFORMANCE ANALYSIS 65
4.1 SCENARIO ENVIRONMENT 65
4.2 SYSTEM IMPLEMENTATION 66
4.3 PERFORMANCE ANALYSIS 71
CHAPTER 5 CONCLUSION AND FUTURE WORK 75
5.1 CONCLUSION 75
5.2 FUTURE WORK 76
REFERENCES 77

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