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標題: | 基於優先權R2CP之WSN多來源視訊串流 Priority-based R2CP for Multi-source Video Streaming on Wireless Sensor Network |
作者: | Shen-Ching Lin 林慎清 |
指導教授: | 張瑞益(Ray-I Chang) |
關鍵字: | 無線感測網路,多來源,優先權,視訊串流,通訊協定, wireless sensor network,multi-source,priority,video streaming,transport protocol, |
出版年 : | 2007 |
學位: | 碩士 |
摘要: | 動機:由於無線感測網路(Wireless Sensor Network, WSN)具有體積小、成本低、容易佈建、可動態組成等優點,近年來已被廣泛應用到各種領域,例如居家照護。然而感測器擁有的能力有限,加上無線網路的高錯誤率,發展視訊串流的應用必須克服諸多挑戰。
作法:本論文提出一個建構在無線感測網路的多來源視訊串流架構。此外,本論文提出的基於優先權R2CP為多對一通訊協定,能夠區分視訊中frames重要性的差異,並且具備來源互補的能力。 成果:本論文採用H.264/AVC編碼器與解碼器證明I-frame的重要性遠大於P-、B-frame,並且進一步分析封包大小與slice損壞數量之關聯;最後本論文採用自行開發的R2CP與P-R2CP模擬器,證明P-R2CP能夠提供較佳的傳輸品質。 Motivation: Because wireless sensor network has advantage of small-size, low-cost, densely-deployed and self-organizing, its applications has covered a lot of domains recently, such as home care. However, its applications to video streaming still need overcome high error-rate of wireless network and limited capabilities of sensors. Method: This thesis proposes not only the architecture of multi-source video streaming on wireless sensor network, but a multi-source transport protocol named priority-based R2CP, which is capable of distinguishing the critical frames and complementing the lack of multi-source. Achievement: This thesis adopts H.264/AVC encoder and decoder to prove that I-frame is most critical ones. Besides, we further analyze the relationship between packet size and the volume of damaged slice. This thesis finally adopts the R2CP and P-R2CP simulator to prove that P-R2CP is able to provide better transmission quality. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/28292 |
全文授權: | 有償授權 |
顯示於系所單位: | 工程科學及海洋工程學系 |
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ntu-96-1.pdf 目前未授權公開取用 | 1.64 MB | Adobe PDF |
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