MIT Technology Review lists sensor networks as one of “Ten Emerging Technologies That Will Change the World” [1]. This paper extends our earlier paper [7], and describes three additional lab exercises, derived from the TinyOS tutorials and using MicaZ motes, that are suitable for activity-driven teaching of sensor networks to undergraduate students. One exercise includes some actual coding, and...

We demonstrate fabric and body-based gestural control of model-based sound synthesis for live musical expression by non-expert as well as trained performers. These softwear instruments are based on customized TinyOS wireless sensor platoforms and our realtime MSP synthesis methods. Our softwear instruments allow freehand, continuous and improvised gesture, and map such continuous gesture to rea...

Early researches focused on the security of homogenous sensor networks. However, recent works have demonstrated that the presence of heterogeneous sensor nodes gives better performance than homogenous ones in terms of energy consumptions, storage overhead, and network connectivity. In this paper, we propose a hierarchical key management scheme named HERO which is based on random key pre-distrib...

In previous work, we have designed a tracking protocol, Stalk, for wireless sensor networks and proved it to be self-stabilizing at the pseudo-code (I/O automata) level. However, it is very challenging to achieve and verify self-stabilization of the same protocol at the implementation (TinyOS) level due to the size of the corresponding program at the implementation level. In this paper, we pres...

We propose a power efficient system architecture that exploits the characteristics of sensor networks in order to decrease the power consumption in the network. The primary characteristic of sensor networks is that the destination of all the data packets in the network is a central data collector and this central data collector, which is usually denoted as access point(AP), has unlimited transm...

In this paper, we introduce TinyTermite. TinyTermite is a novel AI routing algorithm that is reliable and secure against selective forwarding and replay attacks. TinyTermite is fully implemented on TinyOS based Intel Mote 2 platform and the experiments were done to compare its performance with that of the traditional Termite algorithm. Our results show that the TinyTermite reduces the energy co...

We propose a sensor network system design in which a VM is the OS kernel, and viral propagation is the norm. User applications are concise virtual programs; virtual land replaces user-land, providing similar guarantees while conserving energy and not requiring hardware support. VMs run viral programs, self-propagating code that retasks networks simply and efficiently. Maté, Pushpin computing, a...

In the last decade, the landscape of wireless sensor network (WSN) applications has been extending rapidly in many fields such as factory and building automation, environmental monitoring, security systems and in a wide variety of commercial and military areas. Advancements in microelectro-mechanical systems and wireless communication have motivated the development of small and low power sensor...

كان لسياسة النظام البعثي في ​​العراق أثر كبير ظهور وتوسع الأحزاب والحركات المعارضة للنظام ، خاصة بعد الغزو العراقي للكويت وقيام الانتفاضة الشعبانية والأساليب القمعية التي مارسها مع الشعب المعارض. كانت ضعيفة داخليا ولم تكن موحدة بل هناك اتجاهات مختلفة مما أضعف موقفها الداخل، وعلى الصعيد الدولي فضلا عن رفض لأي شكل من أشكال المعارضة، لذلك عامل الاحزاب بقسوة ووحشية، اضعفها بشكل كبير، ناهيك تدخل دور...