對於影音服務來說如何藉由預定排程的封包傳輸來最佳化的使用網路資源和頻寬是一個很重要的議題，尤其是當一群使用者們用移動式裝置透過異質結構的無線網路來上網的時候。因此，在本篇論文中，我們提出了一個透過Fixed Mobile Convergence (FMC)的技術來提供群組式的影音串流服務的三層結構的系統。最上層的伺服器負責Quality of Service (QoS)的運算以及處理排程來服務從異質網路收到的群組影音要求。中層結構則是負責各個影音片段的收集，打包，以及即時地傳輸。下層結構則通常位於大眾運輸系統上，除了負責解碼從中層結構傳過來的影音封包外，還負責轉發至發出要求的裝置。為了能夠在群組的影音服務中提供有效率的頻寬資源使用，我們發展了一套有效的MSE-based 的機制來分析和處理影音串流傳輸的編碼。而從跟傳統的端對端並且直接傳輸的方法來比較，我們可以由性能的比較結果上發現,我們所提出的平台可以減少幾乎40%變異度的頻寬需求,並成功提供了一套有效的方法來服務群組的影音串流要求

Well utilize bandwidth resource through scheduled packet transmission is an important issue for streaming service, especially when the mobile grouped passengers are over heterogeneous wireless networks. In this thesis, we proposed a three-tier VoD platform for providing group streaming service over mobile network environments with Fixed Mobile Convergence (FMC) techniques. The upper layer server takes responsibility of Quality of Service (QoS) computing and scheduling for serving heterogeneously grouped streaming requests. The middle layer servers take care of streaming packets’ collection, packetization, and transmission in real time. The low layer servers are allocated on public transportations for dealing with the multiplexed streaming packets’ dispacketization and distribution. In order to efficiently utilize bandwidth resource during group streaming services, we developed an efficient MSE-based multiplexing mechanism for analyzing and scheduling multiplexed streaming packets’ transmissions. Comparing with traditional method of establishing direct end-to-end connection for each streaming request, the performance results of the proposed platform demonstrate that the developed multiplexing mechanism can reduce almost 40% variation of required bandwidth, and it can successfully serve grouped streaming requests in an efficient way.

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