Throughput Improvement Method Exploiting Capture Effect in Densely Placed WLANs
Throughput Improvement Method Exploiting Capture Effect in Densely Placed WLANs
复制标题
密集放置的 WLAN 中利用捕获效应的吞吐量改进方法
DOI：
10.1145/2701126.2701146
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
and Kenji Ishida
中科院分区：
文献类型：
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作者：
Kenji Takahashi;Hiroyasu Obata;Tutomu Murase;and Kenji Ishida
使用移动的路由器和网络共享终端的便携式无线LAN（WLAN）系统已经增加。然后，预期许多WLAN系统密集地共存。在这种环境下，捕获效应是影响多个无线局域网吞吐量的重要因素之一。本研究的目的是提高吞吐量利用捕获效应时，多个无线局域网密集放置。特别是，为了达到这个目的，本文修改了退避时间的配置。首先，我们通过实验评估证明了竞争窗口（CW）的捕获效果的修改可以提高吞吐量。接下来，我们提出了一种方法，每个站动态地改变他们的CWmin。该方法不仅提高了多个无线局域网的吞吐量，而且避免了同一无线局域网内站点之间冲突造成的吞吐量下降。
Portable wireless LAN (WLAN) systems by using mobile routers and tethering terminals have been increasing. Then, it is expected that a lot of WLAN systems densely coexist. The capture effect is one of the most important factors that impact the throughput of multiple WLANs in such environment. This study aims to improve the throughput exploiting the capture effect when multiple WLANs are densely placed. Especially, in order to achieve the goal, this paper modifies the configuration of backoff time. First, we show the modification of Contention Window (CW) for the capture effect can improve the throughput by experimental evaluations. Next, we propose a method that each station dynamically changes their CWmin. The proposed method not only improves the throughput of multiple WLANs, but also avoids the throughput degradation caused by collision among stations belonging a same WLAN.