In this paper, we describe the development of a mobile butterfly-watching learning (BWL) system to realize outdoor independent learning for mobile learners. The mobile butterfly-watching learning system was designed in a wireless mobile ad-hoc learning environment. This is first result to provide a cognitive tool with supporting the independent learning by applying PDA with wireless communicati...

In distributed wireless sensing applications such as unattended ground sensor systems, remote planetary exploration, and condition based maintenance, where the deployment site is remote and/or the scale of the network is large, individual emplacement and configuration of the sensor nodes is difficult. Hence network self-assembly and continuous network self-organization during the lifetime of th...

Nowadays, the cross layer integration of the different elements composing a wireless sensor network is seen as the most effective approach towards the deployment of long-lasting operating and self-configuring networks. In this work, we undertake the task of developing and integrating a smart and power-aware protocol architecture. We focus our efforts on the physical, MAC protocol and self-confi...

In an effort to better guide research into self-configuring wireless sensor networks, we discuss a technical definition of the term self-organization. We define a selforganizing system as one where a collection of units coordinate with each other to form a system that adapts to achieve a goal more efficiently. We then lay out some conditions that must hold for a system to meet this definition a...

Recent research based on Internet traffic measurements shows that the traffic flows have a fractal nature (i.e., self-similarity property), which causes the underestimation of the network engineering parameters when using the Poisson model. Preliminary field measurements demonstrate that packet data traffic in wireless communications also exhibits self-similarity. In this research, we investiga...