臺灣博碩士論文加值系統

為了滿足行動用戶在不同異質性網路能夠接收及播放多媒體多點群播的資料，在本篇論文中提出Hierarchical Synchronized Multimedia Multicast (HSMM)的架構，透過HSMM兩層式的架構，改善舊有的Synchronized Multimedia Multicast (SMM)的架構，支援每個異質性網路業者個別採取不同的管理策略，如Routing Protocol、Access Control Protocol等。更可以自行設定自己無線網路下Guarantee Region (GR)的大小，符合不同網路的需求。相較於SMM架構，除了能在需要最少額外的網路頻寬下，仍能提供MH無限多次的換手並且能夠比SMM架構更有效的節省在FA所配置的Synchronization Buffer，並達到較好的多媒體串流播放品質！

For supporting handoff mobile users on heterogeneous wireless networks to synchronously receive and play out multicast multimedia stream data, we propose a two-layer Hierarchical Synchronized Multimedia Multicast (HSMM) architecture to enhance capabilities of the single-layer Synchronized Multimedia Multicast (SMM) . In HSMM, each wireless network operator can adapt its own management mechanism, such as routing protocol, access control, etc., and further define the range of Guarantee Region to satisfy different management requirements. Compared to SMM, HSMM will significantly reduce total amounts of synchronization buffer of foreign agents, and achieve a better playback quality.

中　文　摘　要 I
Abstract II
誌 謝 III
目　錄 IV
表　目　錄 VII
圖　目　錄 VIII
第一章　緒論 1
1.1 研究背景及目的 1
1.2 論文架構 10
第二章　文獻探討與相關研究 11
2.1 Mobile IP 11
2.2 IP Multicast 12
2.3 結合IP Multicast 與Mobile IP之相關文獻之探討 13
2.3.1 Remote subscription (RS) 13
2.3.2 Home subscription (HS) 14
2.3.3 加入額外multicast agent架構 14
2.3.4 階層式FA架構 15
2.4 媒體同步傳送的相關文獻之探討 15
2.5 異質性網路相關文獻 16
2.6 SMM架構與相關運作 19
2.6.1 SMM系統架構 19
2.6.2 SMM運作流程 21
第三章　HSMM架構設計與運作說明 34
3.1 HSMM系統架構 34
3.2 HSMM運作流程 39
3.2.1 Join Phase 41
3.2.2 Multicast phase 44
3.2.3 Handoff phase 55
第四章　模擬實驗與結果分析 69
4.1 系統模擬情境 69
4.2 系統模擬 72
4.2.1 模擬實驗一：MS不移動，單一MN進行特定時間點換手動作之效能分析與比較 72
4.2.2 模擬實驗二：MS不移動，MR在不同Handoff Interval ,MN Density與GR大小之效能分析與比較 79
4.2.3 模擬實驗三：MS,MR都會移動，且在不同Handoff Interval，MN Density下與GR大小之效能分析與比較 92
4.3 問題與討論 100
第五章　結論 107
參　考　文　獻 108
簡　歷 111

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