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Whirlpool Ad-hoc Routing Protocol (WARP) is a dynamic data collection protocol for wireless sensor networks. Compared to existing protocols, WARP offers order of magnitude improvements in reliability, efficiency, and routing stretch for a moving data sink. When the sink moves, nearby WARP nodes...
With the universal adoption of mobile communication devices for many common computing applications like email and web access, there is a growing demand to use these devices for richer applications that require high computing power. This paper looks at a way of enabling thin wireless clients to...
Mobile users face privacy risks when providing their locations to untrusted location based services (LBSs). We develop CacheCloak, a system that enables realtime anonymization of location data. A trusted anonymizing server receives the location of a user, processes it using CacheCloak, and...
IEEE 802.11-based devices employ rate adaptation algorithms to dynamically switch data rates to accommodate the fluctuating wireless channel conditions. In this paper, we design and implement a new Background traffic aware rate adaptation algorithm (BEWARE) in Linux-based device driver. The...
This paper studies the joint optimization of throughput and energy consumption in multi-hop wireless networks and associated scaling trends. We employ transmission range as the main control knob and forfeit the common, but often unrealistic, premise that communication energy is proportional to...
Wireless multicast is an important service primitive for emerging applications such as live video, streaming audio and content telecasts. Transmission rate in such a link layer multicast is bottlenecked by the rate of the weakest client, leading to channel under-utilization. Attempts to increase...
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