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Increased AP density in enterprise WLANs leads to increasing RF interference and decreasing performance. An important step towards mitigating this problem is to construct precise RF maps in the form of a conflict graph. Prior work on conflict graph construction, mostly using bandwidth tests [17], suffers from two problems: a) It is limited to static(More)
Rural Internet kiosks typically provide weak security guarantees and therefore cannot support secure web access or transaction-oriented applications such as banking and bill payment. We present a practical, unobtrusive and easy-to-use security architecture for rural Internet kiosks that uses a combination of physical and cryptographic mechanisms to protect(More)
In this paper, we describe a wireless testbed for centralized control. Centralized WLAN systems make use of a central controller that dynamically configures the network based on measured environmental conditions. Such networks are becoming increasingly common in many enterprise and campus deployments today. However, many aspects of centralized WLAN(More)
Rural Internet kiosks in developing countries can cost-effectively provide communication and e-governance services to the poorest sections of society. Unfortunately, a variety of technical and non-technical issues have caused most kiosk deployments to be unsustainable. KioskNet addresses the key technical problems underlying kiosk failure by using robust(More)
Internet kiosks typically provide weak security guarantees and therefore cannot support secure web access or transaction-oriented applications such as banking and bill payment. We present the design and implementation of a practical, unobtrusive and easy-to-use security architecture for KioskNet, a system for low-cost rural Internet kiosks. Our system uses(More)
Enterprises are increasingly deploying Wireless LANs to provide mobile access to users in corporate offices. However, existing enterprise WLANs are far from being truly mobile. In particular, they do not adequately support continuous mobility, where users access the network on-the-go. Furthermore, WLANs that do provide continuous mobility support require(More)
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