A Practical Characterization of 802.11 Access Points in Paris
A Practical Characterization of 802.11 Access Points in Paris
复制标题
巴黎 802.11 接入点的实际特征
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Christophe Berger
中科院分区：
文献类型：
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作者：
Guillaume Valadon;F. L. Goff;Christophe Berger
与其他无线技术不同，802.11网络的部署并不局限于运营商：终端用户可以轻松安装接入点以供家庭使用。这种独特的部署类型是802.11网络在我们的城市景观中无处不在的原因。事实上，在大都市地区，笔记本电脑经常检测到来自同一位置的数十个802.11接入点。在这项工作中，我们描述了两个巴黎区在2007年8月至10月的广泛实验中获得的接入点的简单和更复杂的数据。我们介绍了一个轻量级的扫描平台，在常见的智能手机上运行。使用获得的数据，我们检查了各种参数：（1）SSID，（2）制造商，（3）安全模式，（4）密度，（5）数据速率和（6）信道利用率。例如，我们发现，在我们绘制的两个地区，只有7%的Wi-Fi网络不安全。同样，我们提供了一个实际的证据，90%的检测到的接入点安装沿着DSL互联网接入。
Unlike other wireless technologies, the deployment of 802.11 networks is not limited to operators: access points can easily be installed by end-users for domestic use. This singular type of deployment is the reason why 802.11 networks are omnipresent in our urban landscapes. Indeed, in metropolitan areas, laptops frequently detect tens of 802.11 access points from the same location. In this work, we describe both simple and more complex data about access points obtained in two Paris districts during an extensive experiment from August to October 2007. We introduce a lightweight scanning platform that runs on common smartphones. Using the obtained data, we examine various parameters: (1) SSID, (2) manufacturers, (3) security modes, (4) density, (5) data rates, and (6) channels utilization. For example, we show that in the two districts that we mapped as few as 7% of the Wi-Fi networks are not secured. Similarly, we provide a practical evidence that 90% of detected access points where installed along with DSL Internet access.