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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...
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...
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...
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