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We design and build a system we call mobiLivUp, that utilizes nearby smartphones to improve live wide-area video upstreaming. In mobiLivUp, to distribute the video to nearby devices, the video streaming device creates a small wireless network using Wi-Fi Direct. Other devices then connect to this network. Parts of the video stream are sent to these connected devices, which then upload their parts...
In this paper, our goal is to develop approaches to reduce the energy consumption in Radio Tomographic Imaging (RTI)-based methods for device free localization without giving up localization accuracy. Our key idea is to only measure those links that are near the current location of the moving object being tracked. We propose two approaches to find the most effective links near the tracked object....
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