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Anti-jamming interference alignment (IA) can battle with the adversarial jamming signals for IA sensor networks effectively. In this letter, we design jamming signals to optimally disrupt the transmission of anti-jamming IA sensor networks. Specifically, with only the jamming channel information known for the jammer, we design the jamming signal to minimize the signal-to-jamming-plus-noise ratio (SJNR)...
Leaky coaxial cable (LCX) has long been used to cover blind and semi-blind zones in wireless communication. In this paper, we propose a novel system using a LCX. The key idea is to deploy LCX and use wireless information obtained through PHY layer wireless channel state information (CSI).The core application involves identifying multiple patients’ postures in bed in order to reduce the formation of...
We present a wearable system that uses ambient electromagnetic interference (EMI) as a signature to identify electronic devices and support proxemic interaction. We designed a low cost tool, called EMI Spy, and a software environment for rapid deployment and evaluation of ambient EMI-based interactive infrastructure. EMI Spy captures electromagnetic interference and delivers the signal to a user;s...
WristQue combines environmental and inertial sensing with precise indoor localization into a wristband wearable device that serves as the user's personal control interface to networked infrastructure. WristQue enables users to take control of devices around them by pointing to select and gesturing to control. At the same time, it uniquely identifies and locates users to deliver personalized automatic...
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