This project enables connectivity on everyday objects by transforming them into FM radio stations. To do this, we show for the first time that ambient FM radio signals can be used as a signal source for backscatter communication. Our design creates backscatter transmissions that can be decoded on any FM receiver Read More ...
We show for the first time that commodity devices can be used to generate wireless data transmissions that are confined to the human body. Specifically, we show that commodity input devices such as fingerprint sensors and touchpads can be used to transmit information to only wireless receivers that are in Read More ...
We introduce inter-technology backscatter (Interscatter), a novel approach that transforms wireless transmissions from one technology to another, on the air. Specifically, we show for the first time that Bluetooth transmissions can be used to create Wi-Fi and ZigBee-compatible signals using backscatter communication. Since Bluetooth, Wi-Fi and ZigBee radios are widely Read More ...
FingerIO is a novel fine-grained finger tracking solution that transforms any space around off-the-shelf smartphones or smartwatches into an interactive surfaces. FingerIO does not require instrumenting the finger with sensors and works even in the presence of occlusions between the finger and the device. We achieve this by transforming the Read More ...
We introduce Passive Wi-Fi that demonstrates for the first time that one can generate 802.11b transmissions using backscatter communication, while consuming 3 – 4 orders of magnitude lower power than existing Wi-Fi chipsets. Passive Wi-Fi transmissions can be decoded on any Wi-Fi device including routers, mobile phones and tablets. Building Read More ...
RF-powered computers are small devices that compute and communicate using only the power that they harvest from RF signals. While existing technologies have harvested power from ambient RF sources (e.g., TV broadcasts), they require a dedicated gateway (like an RFID reader) for Internet connectivity. We present Wi-Fi Backscatter, a novel Read More ...
People with tetraplegia have either partially or completely lost their abilities to move their arms or legs. We want technologies to help those patients to interact with their surroundings. Fortunately, many of those patients are able to move their tongues on command. Researchers have thus asked if it is possible Read More ...
Existing gesture-recognition systems consume significant power and computational resources that limit how they may be used in low-end devices. We introduce AllSee, the first gesture-recognition system that can operate on a range of computing devices including those with no batteries. AllSee consumes three to four orders of magnitude lower power Read More ...
uProxy is a browser extension that lets users share alternative more secure routes to the Internet. It’s like a personalised VPN service that you set up for yourself and your friends. uProxy helps users protect each other from third parties who may try to watch, block, or redirect users’ Internet Read More ...
Strong User Isolation for Scalable Web Applications PDF Web applications are a frequent target of successful attacks. The damage is amplified by the fact that application code is responsible for security enforcement in most web frameworks. In this paper we design and implement Radiatus, a web framework where all application-specific Read More ...