Sensing coverage and network connectivity are two of the most fundamental problems in
wireless sensor networks. Finding an optimal node deployment strategy that would minimize …

In the last years, wireless sensor networks (WSNs) have gained increasing attention from
both the research community and actual users. As sensor nodes are generally battery …

The wireless sensor network (WSN) technology spawns a surge of unforeseen applications.
The diversity of these emerging applications represents the great success of this technology …

Topology issues have received more and more attentions in Wireless Sensor Networks
(WSN). While WSN applications are normally optimized by the given underlying network …

Duty-cycle MAC protocols have been proposed to meet the demanding energy requirements
of wireless sensor networks. Although existing duty-cycle MAC protocols such as S-MAC are …

Duty cycling is a widely used mechanism in wireless sensor networks (WSNs) to reduce
energy consumption due to idle listening, but this mechanism also introduces additional …

Nowadays energy crisis and global warming problems are hanging over everyone's head,
urging much research work on energy saving. In the ICT industry, which is becoming a major …

Sleep/wake-up scheduling is one of the fundamental problems in wireless sensor networks,
since the energy of sensor nodes is limited and they are usually unrechargeable. The …

Fueled by the widespread adoption of sensor-enabled smartphones, mobile crowdsourcing
is an area of rapid innovation. Many crowd-powered sensor systems are now part of our …

A large number of ractical sensing and actuating applications require immediate notification
of rare but urgent events and also fast delivery of time sensitive actuation commands. In this …