多速率WLAN中一种新的Web浏览关联策略
A Novel Association Policy for Web Browsing in a Multirate WLAN
摘要：
我们获得了一个关联策略STA在IEEE 802.11 WLAN考虑明确的两个方面的实际重要性：（a）TCP控制的短文件下载穿插与读取时间（由网页浏览的动机），以及（b）不同的STA与AP可能不同的速率（取决于距离AP）。我们的方法基于两个步骤。首先，我们考虑一个分析模型，以获得聚合AP吞吐量的长期TCP控制的文件下载时，STA相关联的k个不同的速率r1，r2，：，rk，这扩展了文献中的早期工作。第二，我们提出了一个2节点的封闭式网络模型，以近似预期的平均大小的文件下载时间的用户共享AP与其他用户相关联的多重速率。这些分析结果激发了拟议的关联策略，称为基于估计延迟的关联（EDA）策略：与AP关联的预期文件下载时间最少。仿真结果表明，对于Web浏览类型的流量情况下，EDA优于其他政策，已经提出了较早的改善范围从12.8%到46.4%的9-AP网络的程度。据我们所知，这是第一个提出专门为Web浏览量身定制的关联策略的工作。除此之外，我们的分析结果可能是独立的利益
英文摘要：
We obtain an association policy for STAs in an IEEE 802.11 WLAN by taking into account explicitly two aspects of practical importance: (a) TCP-controlled short file downloads interspersed with read times (motivated by web browsing), and (b) different STAs associated with an AP at possibly different rates (depending on distance from the AP). Our approach is based on two steps. First, we consider an analytical model to obtain the aggregate AP throughput for long TCP-controlled file downloads when STAs are associated at k different rates r1, r2, : : :, rk; this extends earlier work in the literature. Second, we present a 2-node closed queueing network model to approximate the expected average-sized file download time for a user who shares the AP with other users associated at a multiplicity of rates. These analytical results motivate the proposed association policy, called the Estimated Delay based Association (EDA) policy: Associate with the AP at which the expected file download time is the least. Simulations indicate that for a web-browsing type traffic scenario, EDA outperforms other policies that have been proposed earlier; the extent of improvement ranges from 12.8% to 46.4% for a 9-AP network. To the best of our knowledge, this is the first work that proposes an association policy tailored specifically for web browsing. Apart from this, our analytical results could be of independent interest
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
