【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(jì)了相應(yīng)的流量管理策略和預(yù)取訪問(wèn)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(huì)話請(qǐng)求的到達(dá)過(guò)程為泊松過(guò)程,然后通過(guò)系列仿真實(shí)驗(yàn)?zāi)M了車-地寬帶互聯(lián)的流量分布,并構(gòu)建實(shí)驗(yàn)床采集實(shí)測(cè)流量進(jìn)行驗(yàn)證,結(jié)果表明基于泊松到達(dá)過(guò)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(jìn)一步引入了預(yù)取策略,大幅降低了車-地寬帶互聯(lián)系統(tǒng)的請(qǐng)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(xué)信息科學(xué)與工程學(xué)院;福建工程學(xué)院下一代互聯(lián)網(wǎng)應(yīng)用技術(shù)研究中心;
【基金】：國(guó)家自然科學(xué)基金(61101139) 福建省杰出青年科技人才培養(yǎng)基金(JA10212)
【分類號(hào)】：TP393.06

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 姜明;吳春明;張e，

本文編號(hào)：2417705