Projects

tiny15four

This project aims to be a cross-platform implementation of the IEEE 802.15.4 communication standard.

Api-do

Api-do is a collection of tools inspired by and extending Joshua Wright's original KillerBee. It is a martial art aspect of ZigBee networking apiculture: the Way of the Bee. The goal is to produce methods and tools for accessing security of ZigBee and other IEEE 802.15.4 deployments and/or ... [More] implementations. Specifically, the project seeks to advance the state-of-the-art in device discovery and enumeration, geographical mapping, fingerprinting, and exploitation, while providing recommendations for remediation. “Security will not get better until tools for practical exploration of the attack surface are made available.” ("Wright's law", Joshua Wright) This project originated from the ZigBee/802.15.4 security research at the Dartmouth Trust Lab. [Less]

cumotive

CUmotive entails a small wearable mesh network which interfaces with a computer. The nodes of the mesh network gather data from accelerometers on the user's body and independently relay that information to the computer, which analyzes the data and translates it into commands for music ... [More] , computing, or gaming. This project contains AVR code for the microcontrollers running the nodes along with flext code for custom modules for Pure Data and Max/MSP. [Less]

ieee802154-mobility

Simulador de mobilidade em IEEE 802.15.4O padrão de rede IEEE 802.15.4 vem sendo utilizado como solução adequada para redes de sensores sem fio em muitos ambientes e áreas de atuação. Este tipo de rede tem características específicas que a diferem de outros tipos de rede sem fio. Este ... [More] trabalho visa avaliar o impacto da mobilidade de elementos na rede IEEE 802.15.4. Para isso, foi desenvolvida uma plataforma de simulação que contem os requisitos específicos necessários para avaliar e comparar ambientes com e sem mobilidade. Os resultados vão mostrar que a mobilidade dos elementos nos cenários avaliados provocou degradação do sinal em pequenas distâncias, mas em distâncias entre 30 e 40 metros a mobilidade causou uma melhora na taxa de transmissão dos elementos, assim como em distâncias maiores que 60 metros. Isso se deve pelo fato de que em distâncias intermediárias a rede apresentou alta taxa de colisão entre os pacotes, fazendo com que a técnica CSMA/CA melhore o desempenho da rede em ambientes com maior variabilidade do sinal. IEEE 802.15.4 mobility simulatorThe IEEE 802.15.4 network standard is being used as a suitable solution for wireless sensor networks in many environments and areas of expertise. This kind of network has specific characteristics that differ from others types of wireless network. This work intends to analyse the mobility impact on IEEE 802.15.4 elements. For this reason it was developed a simulation platform that contains specific requirements necessary to evaluate and compare environments with and without mobility. The results will show that the mobility of elements in the scenarios evaluated caused degradation of the signal at short distances, but for distances between 30 and 40 meters in mobility caused an improvement in the rate of transmission of elements, as well as at distances greater than 60 meters.This is due to the fact that at intermediate distances the network presents high rate of collisions , making the technique CSMA/CA improve network performance in environments with more variability of the signal. [Less]

lowpan

LoWPAN is a networking stack for Linux aiming for the IEEE 802.15.4-2003 and (partially) for the IEEE 802.15.4-2006 compatibility. As a part of this stack we do also providide several