The research of Self-adaptive Quality of Experience based on MPEG-DASH Mechanism

• Main Authors: Yao-Teng Zheng, 鄭燿騰
• Other Authors: Wei-Tsong Lee
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/82797725910213956505

碩士 === 淡江大學 === 電機工程學系碩士在職專班 === 102 === In recent years, the popularity of portable devices making high-definition video streaming growing rapidly. So the mobile devices may move through TCP / IP from 4G LTE / Gigabit Ethernet / Wi-Fi and many other different characteristics networks to access multimedia content by HTTP. Many audio and video formats, the use of adaptive compression SVC format with MPEG-DASH architecture, will be able to make a single source of transmission network to provide different services, when the devices have the ability to determine quality of service which can improve the state of adaptation to be the better network bandwidth to provide a better end user quality of experience. This article by the user terminal for QoS state analysis, a method is proposed as a self-adaptive QoE mechanism. In order to achieve self-management methods of QoE, quality of service can be made when the network quality and status changes by the MPEG-DASH MPD select the appropriate service profiles. The SVC adaptive coding techniques can adaptive bandwidth dynamically to make the service quality and user experience improved. TCP / IP protocol can deliver multimedia formats from text, images or continuous video packets through different transport architecture and technologies, such as 4G/LTE, Wi-Fi, or FTTx and other entities. Most network users can be satisfied with a limited bandwidth. Nowadays everything are digitized, the network services is far than text messages, gradually applied to various fields such as audio and video which demand higher bandwidth, and the high definition video services push up limits more than ever before. It is the reason why the streaming service becomes the primary loading of network services. Although Multimedia streaming services can be provided by various networks, such as Internet, Intranet IPTV or mobile networks, there is appropriate agreement for heterogeneous network of digital audio and video transmission. Thus this paper is to research how the SVC compression format with MPEG-DASH as the transfer method, and have self-quality adjustment in order to maintain QoE (Quality of Experience).