本文關(guān)鍵詞：移動視頻體驗質(zhì)量的量化評價模型　出處：《計算機工程與應用》2017年12期 　論文類型：期刊論文

  更多相關(guān)文章： 移動視頻 體驗質(zhì)量 量化評價模型 層次分析法

【摘要】：移動視頻體驗質(zhì)量(QoE)的研究正變得日益重要,現(xiàn)有的QoE評價模型缺少相應的量化方法。結(jié)合移動視頻業(yè)務(wù)的特點,提出了兩層權(quán)值的QoE量化評價模型,即QoE由六種"影響層面"按各自的一級權(quán)值疊加而成;進一步地,每個"影響層面"又由多個"影響因素"構(gòu)成。除了丟包和抖動兩個"影響因素"外,其他"影響因素"均具有獨立的二級權(quán)值。提出通過層次分析法(AHP)計算出所有的一級權(quán)值,并且進一步計算出除了丟包、抖動外的其他二級權(quán)值。由于丟包和抖動這兩個影響因素相互依賴,無法計算各自的二級權(quán)值,因此通過網(wǎng)絡(luò)模擬實驗,找出兩者的雙變量函數(shù)f(丟包,抖動),由此得到完整的兩層權(quán)值QoE量化評價模型。所提QoE量化評價模型通過測評人員的QoE評分進行驗證,實驗結(jié)果表明該模型獲得了較高的準確度,證明了上述模型量化方法的可靠性。
[Abstract]:The research of mobile video experience quality (QoS) is becoming more and more important, and the existing QoE evaluation model lacks the corresponding quantization method, which combines the characteristics of mobile video service. This paper puts forward a quantitative evaluation model of QoE with two levels of weights, that is, QoE consists of six kinds of "influence layers" which are superimposed according to their first-order weights. Further, each "influence layer" is composed of a plurality of "influence factors." in addition to packet loss and jitter two "influence factors". Other "influencing factors" have independent second-order weights. It is proposed that all first-order weights can be calculated by Analytic hierarchy process (AHP) and further calculated except packet loss. Other secondary weights outside the jitter. Because the two influencing factors, packet loss and jitter, can not calculate their secondary weights, we can find out the bivariate function f (loss of packets) by network simulation experiments. A complete two-layer weight QoE quantitative evaluation model is obtained. The proposed QoE quantitative evaluation model is verified by the QoE score of the evaluator. The experimental results show that the model is accurate and reliable.
【作者單位】： 東華大學信息科學與技術(shù)學院;
【基金】：上海市自然科學基金(No.14ZR1400500)
【分類號】：TN919.8
【正文快照】： 1引言多媒體通信的發(fā)展令人類社會進入了一個新的信息時代,通過移動網(wǎng)絡(luò)提供高品質(zhì)的視頻服務(wù)成了運營商研究的熱點。移動視頻業(yè)務(wù)是通過移動網(wǎng)絡(luò)和移動終端為用戶傳送視頻內(nèi)容的新型業(yè)務(wù),其特點之一是需要傳送比文本和語音數(shù)據(jù)量更大的視頻數(shù)據(jù)[1],它是以流媒體格式為基礎(chǔ)、，

本文編號：1406730