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研究生:林俞成
研究生(外文):Yu-ChenLin
論文名稱:基於正交分頻多重接取技術支援網內與私有資料傳輸品質保證之混合式乙太被動光纖網路架構
論文名稱(外文):A Novel OFDMA-based Hybrid EPON Architecture Enabling Inter/Private Networking with QoS Support
指導教授:林輝堂林輝堂引用關係
指導教授(外文):Hui-Tang Lin
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電腦與通信工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:127
中文關鍵詞:乙太被動式光纖網路網內傳輸正交分頻多重接取服務品質
外文關鍵詞:EPONstriple-play servicesP2POFDMAQoS
相關次數:
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  • 下載下載:7
  • 收藏至我的研究室書目清單書目收藏:0
近年來,大部分的網路業者都採用乙太被動式光纖網路架構來做為解決接取網路與都會網路間,因為傳輸速率不對等而產生的”最後一哩”問題。然而,由於網路使用者的大幅增加,與多元化的網路多媒體服務的普及化,使網路業者面臨高頻寬需求的問題。此外使用者使用網路的習慣日漸改變,造就點對點的網內傳輸行為的興起。然而,傳統的樹狀乙太被動式網路架構並不直接支援點對點的網內傳輸,亦無法對涉及隱私或具有即時性需求的點對點傳輸資料,提供相對應的保障與品質服務。而近年來已有多篇研究論文指出,使用正交分頻多重接取技術可以達到更有效率的頻寬使用。因此,本碩士論文基於正交分頻多重接取技術所具有的優勢以及上述的議題討論,提出一個創新的網路架構,稱為混合式乙太被動式光纖網路。此混合式網路架構,利用光元件陣列波導光柵達到網內傳輸,並且利用環狀拓樸的優點達到了私有資料傳輸的目的。再者,為了達到保證服務品質的目的,亦在此混合式網路架上提出一個混合式服務品質演算法,藉由中央和分散控制的合作搭配,滿足即時性資料的服務品質需求,與達到頻寬的高使用率。最後模擬結果亦證實本論文所提出的混合式網路架構與頻寬分配演算法不但具有支援網內與私有資料傳輸的能力,亦能提供良好服務品質保證。
Although Ethernet Passive Optical Networks (EPONs) have been regarded as a promising solution for overcoming the bandwidth bottleneck problem in local area networks, they may not be able to meet the ever-growing bandwidth demand from end users and the emerging triple-play services in the near future. Additionally, Peer-to-Peer (P2P) communications are more general among the end users. However traditional EPON architecture could not support directly P2P communication and provide privacy for some private data. Many studies proposed recently show that Orthogonal Frequency Division Multiple Access (OFDMA) technologies can achieve better network utilization and provide Qualtiy of Service (QoS). As a result, this study presents a novel OFDMA-based hybrid EPON architecture to meet the rapidly increasing bandwidth demand and various transmissions. The use of an Arrayed-Waveguide-Grating (AWG) optical device and ring topology enable the proposed EPON architecture to provide inter and private communications simultaneously. Additionally, in order to provide truly differentiated Quality of Services (QoS) in the proposed EPON system, a hybrid Centralized and Decentralized Dynamic Bandwidth Allocation (CED-DBA) scheme is proposed to satisfy the QoS requirements of triple-play services. The simulation results demonstrate the efficiency and effectiveness of the proposed DBA approach.
摘要 i
英文摘要 ii
誌謝 iv
目錄 v
表目錄 viii
圖目錄 ix
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機 3
1.3 研究目的及論文架構 6
1.3.1 研究目的 6
1.3.2 論文架構 7
第二章 相關文獻探討 8
2.1 支援直接點對點網內傳輸之乙太被動式光纖網路架構 9
2.1.1以陣列波導光柵模組之分波多工乙太被動光纖網路架構 9
2.1.2布拉格光纖光柵正交分頻多重接取被動光纖網路架構 12
2.2於乙太被動式光纖網路上之正交分頻多重接取技術應用 14
2.2.1正交分頻多重接取環狀乙太被動光纖網路架構 15
2.2.2 正交分頻多重接取環狀乙太被動光纖網路架構之通訊協定 17
2.3三合一整合型網路應用之品質服務傳輸保證 19
第三章 基於正交分頻多重接取技術支援網內與私有資料傳輸品質保證之混合式乙太被動光纖網路架構 23
3.1基於正交分頻多重接取技術之混合式乙太被動光纖網路架構 24
3.1.1 網路拓樸概觀 24
3.1.2 陣列波導光柵模組 25
3.1.3 光纖線路終端器 29
3.1.4各類型光纖網路單元 31
3.1.5 各類型光纖網路單元內部構造 32
3.2 傳輸行為探討 39
3.2.1下行傳輸模式 39
3.2.2上行傳輸模式 41
第四章 支援服務品質混合式乙太被動光纖網路架構通訊協定之設計 45
4.1框架式循環分波多工交錯輪詢頻寬分配機制 46
4.1.1 基於保證服務品質之框架設計 46
4.1.2 中央控制頻寬分配機制 47
4.1.3 分散控制頻寬分配機制 59
4.1.4 私有網路資料公平傳輸機制 69
4.2 混合式框架正交分頻多重接取頻寬分配機制 71
4.2.1基於保證服務品質之框架設計 72
4.2.2 正交分頻多重接取技術上之頻寬分配演算法 79
4.2.3 控制訊息 83
第五章 結果模擬與效能分析 87
5.1 模擬環境與設定 87
5.1.1框架式循環分波多工交錯式輪詢頻寬分配機制下參數設定 88
5.1.2混合式框架正交分頻多重接取頻寬分配機制下參數設定 89
5.2 模擬結果與分析 91
5.2.1變動公開資料與網內資料的比例的效能評比 92
5.2.2變動三合一整合型網路服務的資料類型比例 97
5.2.3對稱與不對稱的網路環境下兩機制間的效能評比 102
5.2.4框架式循環分波多工交錯式輪詢頻寬分配機制下變動TIdle-Max的效能評比 104
5.2.5在框架式正交分頻多重接取頻寬分配機制下變動AWG模組的階數(Degree) 105
5.2.6在框架式正交分頻多重接取頻寬分配機制下變動傳送資料所使用的波長數目 110
第六章 結論及未來工作 115
參考文獻 117
附錄 124

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