本文選題：性能評估 + 視頻服務　； 參考：《北京郵電大學》2014年碩士論文

【摘要】：如今我們已經(jīng)進入信息共享時代,伴隨而來的是網(wǎng)絡流量的飛速增長和用戶對高清流媒體服務日益增長的需求。依托于智能光網(wǎng)絡所提供的巨大帶寬和智能管控能力,結合了視頻服務的特性及其實現(xiàn)機制,面向視頻服務的智能光網(wǎng)絡正在如火如茶地進行中。 目前的網(wǎng)絡性能評估方法是基于視頻服務性能評估和光網(wǎng)絡性能評估這兩個方面進行的。視頻服務性能評估主要是基于主觀層面的流媒體視頻質量評估和客觀層面的視頻流傳輸質量測試進行的；光網(wǎng)絡性能評估則是基于已有的測試標準進行的,它主要關注的是光網(wǎng)絡的底層性能參數(shù),如眼圖、鏈路損耗、業(yè)務建拆路時延等。然而,這兩個方面是兩個相對平行的研究對象,并不能對一套面向視頻服務的智能光網(wǎng)絡系統(tǒng)進行綜合性能的評估。由此帶來的直接影響是對所建設的網(wǎng)絡不能得到綜合性能評估數(shù)據(jù),這進一步將導致大量資源的浪費而且不能為以后的網(wǎng)絡建設提供指導依據(jù)。 為了有效地解決這一問題,本論文提出了一套面向視頻服務的、基于智能光網(wǎng)絡架構的性能評估方法。課題通過對傳統(tǒng)視頻服務性能評估和傳統(tǒng)光網(wǎng)絡性能評估的研究,結合面向視頻服務的智能光網(wǎng)絡的特性、體系架構和實現(xiàn)機制,借鑒0SI/IS0模型,提出了一種綜合性能評估方法。該評估方法由五個層面組成,可以達到從多個層次、多個角度分析網(wǎng)絡性能的效果。 最后,基于實驗室課題組搭建完成的面向視頻服務的智能光網(wǎng)絡平臺,本論文運用所提出的綜合性能評估方法對其展開了評測實施,以實現(xiàn)對該性能評估方法的驗證,并期望對其他網(wǎng)絡系統(tǒng)的評估提供參考依據(jù)。
[Abstract]:Now we have entered the era of information sharing, accompanied by the rapid growth of network traffic and the growing demand of users for HD streaming media services. Relying on the huge bandwidth and intelligent control ability provided by the intelligent optical network, and combining the characteristics of the video service and its implementation mechanism, the intelligent optical network for the video service is in progress as hot as tea. Current network performance evaluation methods are based on two aspects: video service performance evaluation and optical network performance evaluation. The performance evaluation of video service is mainly based on the subjective quality evaluation of streaming media and the quality test of video streaming transmission on the objective level, while the performance evaluation of optical network is based on the existing test standards. It mainly focuses on the underlying performance parameters of optical networks, such as eye diagram, link loss, delay in building and disconnecting services, and so on. However, these two aspects are two relatively parallel research objects, which can not evaluate the comprehensive performance of a video service-oriented intelligent optical network system. The direct impact is that the constructed network can not get the comprehensive performance evaluation data, which will further lead to the waste of a large number of resources and can not provide guidance for the future network construction. In order to solve this problem effectively, this paper proposes a performance evaluation method based on intelligent optical network architecture for video service. Through the research of traditional video service performance evaluation and traditional optical network performance evaluation, combining the characteristics, architecture and implementation mechanism of video service-oriented intelligent optical network, a comprehensive performance evaluation method is proposed based on 0SI/IS0 model. The evaluation method is composed of five layers and can be used to analyze the network performance from multiple levels and angles. Finally, based on the intelligent optical network platform for video service set up by the lab team, this paper uses the proposed comprehensive performance evaluation method to evaluate and implement it to realize the verification of the performance evaluation method. It is expected to provide reference for the evaluation of other network systems.
【學位授予單位】：北京郵電大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TP393.06

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