【摘要】：為支持旅客列車車-地寬帶互聯(lián)更為有效的流量管理,提出了一種基于ON/OFF模型的Internet流量模型,并設(shè)計了相應的流量管理策略和預取訪問算法。首先論證了旅客列車車-地寬帶互聯(lián)系統(tǒng)中用戶會話請求的到達過程為泊松過程,然后通過系列仿真實驗模擬了車-地寬帶互聯(lián)的流量分布,并構(gòu)建實驗床采集實測流量進行驗證,結(jié)果表明基于泊松到達過程的流量模型能較好地反映車-地寬帶互聯(lián)的流量特性,并較好地服從Inv Gaussian分布。然后進一步引入了預取策略,大幅降低了車-地寬帶互聯(lián)系統(tǒng)的請求拒絕率和流量損失,提高了系統(tǒng)的吞吐率。
[Abstract]:In order to support more effective flow management of passenger train vehicle-ground broadband interconnection, a Internet traffic model based on ON/OFF model is proposed, and the corresponding flow management strategy and prefetching access algorithm are designed. It is demonstrated that the arrival process of the user's session request in the passenger train vehicle-ground broadband interconnection system is a Poisson process, and then the flow distribution of the vehicle-ground broadband interconnection is simulated by a series of simulation experiments. The results show that the flow model based on Poisson's arrival process can better reflect the flow characteristics of vehicle-ground broadband interconnection, and it can be well distributed from Inv Gaussian. Furthermore, a prefetching strategy is introduced, which greatly reduces the request rejection rate and traffic loss of the vehicle-ground broadband interconnection system, and improves the throughput of the system.
【作者單位】： 中南大學信息科學與工程學院;福建工程學院下一代互聯(lián)網(wǎng)應用技術(shù)研究中心;
【基金】：國家自然科學基金(61101139) 福建省杰出青年科技人才培養(yǎng)基金(JA10212)
【分類號】：TP393.06

【參考文獻】

相關(guān)期刊論文 前8條

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本文編號：2417705