We present Disco, an asynchronous neighbor discovery and rendezvous protocol that
allows two or more nodes to operate their radios at low duty cycles (eg 1%) and yet still …

Mobile sensor nodes can be used for a wide variety of applications such as social networks
and location tracking. An important requirement for all such applications is that the mobile …

As the use of wireless sensor networks (WSNs) becomes widespread, node density tends to
increase. This poses a new challenge for medium access control (MAC) protocol design …

Jamming is a very effective denial-of-service attack that renders most higher-layer security
mechanisms moot-yet it is often ignored in WSN design. We show that an interrupt jamming …

Railway systems are critical in many regions, and can consist of several tens of thousands of
bridges, being used over several decades. It is critical to have a system to monitor the health …

In wireless body area networks (WBANs), various sensors and actuators are placed
on/inside the human body and connected wirelessly. WBANs have specific requirements for …

Many multiple channel MAC protocols for wireless networks have been proposed to make
efficient use of multiple channels where each node has a single radio which allows it to send …

Medium access control (MAC) protocols have been studied under different contexts for
decades. In decentralized contexts, transmitter-receiver pairs make independent decisions …

In this paper, we consider the goal of achieving high throughput in a wireless sensor
network. Our work is set in the context of those wireless sensor network applications which …

Time synchronization remains as a challenging task in wireless sensor networks that face
severe resource constraints. Unlike previous work's aiming at pure clock accuracy, this …