This work presents the first known implementation of elliptic curve cryptography for sensor networks, motivated by those networks’ need for an efficient, secure mechanism for shared cryptographic keys’ distribution and redistribution among nodes. Through instrumentation of UC Berkeley’s TinyOS, this work demonstrates that secret-key cryptography is already viable on the MICA2 mote. Through anal...

We develop distributed algorithms for sensor networks that respond by directing a target (robot or human) through a region. The sensor network models the event levels sensed across a geographical area, adapts to changes, and guides a moving object incrementally across the network. We describe a device we call a Flashlight for interacting with the sensor field. This interaction includes collecti...

In this paper, we describe the design and implementation of a new security protocol based on Elliptic Curve Cryptosystems (ECC) for securing Wireless Sensor Networks (WSNs). Some public-key-based protocols such as TinyPK and EccM 2.0 have already been proposed in response. However, they exhibit poor performance. Moreover, they are vulnerable to man-in-the-middle attacks. We propose a cluster-ba...

This paper introduces the application of a sensor network to navigate a flying robot. We have developed distributed algorithms and efficient geographic routing techniques to incrementally guide one or more robots to points of interest based on sensor gradient fields, or along paths defined in terms of Cartesian coordinates. The robot itself is an integral part of the localization process which ...

MIT Technology Review lists sensor networks as one of “Ten Emerging Technologies That Will Change the World” [1]. This paper describes three lab exercises that are suitable for activity-driven teaching of sensor networks to undergraduate students. The exercises are derived from the TinyOS tutorial, and MicaZ motes were used. The first exercise is about uploading a simple blink program to one mo...

We present SOS, a new operating system for mote-class sensor nodes that supports run-time reconfiguration of the embedded software. The architecture of SOS consists of dynamically-loaded modules and a statically compiled kernel (ref. figure 1). An application in SOS is composed of one or more modules interacting via asynchronous messages or function calls. Modules are position independent binar...

This paper is a comparative study of gestural interaction with musical sound, designed to gain insight into the notion of musical affordance on interactive music systems. We conducted an interview base user study trialing three accelerometer based devices, an iPhone, a Wii-mote, and an Axivity Wax prototype, with four kinds of musical sound, including percussion, stringed instruments, and voice...

SMEPP Light is a middleware for Wireless Sensor Networks (WSNs) based on mote-class sensors. It is derived from the specification developed under the framework of the SMEPP project, to deal with the hardware and software constraints of WSNs. SMEPP Light features group management, grouplevel security policies, mechanisms for query injection and data collection based on a subscribe/event mechanis...

The devices developed for applications in the internet of things have evolved technologically improvement hardware and software components, area optimization life time to increase capacity save energy. This paper shows development a fuzzy logic algorithm power propagation neural network wireless mote (IoT end device). changes transmission frequency according battery voltage solar cell voltage. ...