本論文建置一個基於HTTP Live Streaming (HLS)的多媒體串流服務平台，探討使用者以自助式方式來調整網路頻寬，調整時，可動態提高網路頻寬、提高即時串流觀賞品質與不中斷即時串流服務之研究。其原理是利用軟體定義網路(Software-Defined Networking, SDN)可程式化設計與網路流量控制，搭配HTTP自適性串流(Adaptive Bitrate Streaming)的技術，能夠依照使用者的網路頻寬來動態調整影音串流的品質。另外建立後台管理平台，同樣利用SDN可程式化設計與網路流量控制方式，管理者可提高使用者的網路頻寬，動態提高使用者的即時串流觀賞品質。實驗結果顯示，本論文所提出之概念能正確運作。 This paper builds a multimedia streaming service platform based on HTTP Live Streaming (HLS), to explore how users can adjust the network bandwidth in a self-help way, dynamically increase the network bandwidth、improve the quality of live streaming、without interruption of live streaming service research.The principle is to use Software-Defined Networking (SDN) programmable design and flow control, with HTTP Adaptive Bitrate Streaming technology, according to the user''s network bandwidth to dynamically adjust the quality of audio and video streaming. In addition, established the background management platform, the same use of SDN programmable design and network traffic control, managers can change the user''s network bandwidth, dynamically improve the user''s live streaming viewing quality. The experimental results show that the concept proposed in this paper can operate correctly.
