Wireless sensor networks (WSN) consist of thousands of tiny and low cost nodes with very
limited energy, computing power and communication capabilities. We consider these issues …

In recent years, research on wireless sensor networks has been undergoing a revolution,
promising to have significant impact on a broad range of applications from military to health …

The expectations for sensor networks are growing. One of the most important issues in
sensor networks is to evaluate the fault tolerance and built technology to improve it, because …

Developments in wireless, mobile communications combined with advancements in
electronics have contributed to the emergence of a new class of networks: wireless ad-hoc …

The main concern of sensor networks is to maintain full coverage of the monitoring areas,
not to keep each node alive as long as possible. That is, it is not necessary to keep nodes …

How to prolong the lifetime of Wireless Sensor Networks (WSNs) is one of the primary
challenges when design and deploy WSNs. Following our previous theoretical and …

Testing of the range and radiation pattern of wireless sensors is often not fully documented.
In this paper, we perform a full characterization of the Tmote Sky motes from MoteIV …

Wireless sensor networks (WSN) are often applied to monitor the environment such as mine.
Due to the rapid attenuation of the wireless signals and the limited power of the WSN nodes …

A wireless sensor network consists of a large number of sensor nodes that are spread
densely to observe the phenomenon. The whole network lifetime relies on the lifetime of …

Energy efficiency is an important issue in wireless sensor networks. One available power
saving strategy is having only a portion of nodes work, but this would always compromise …