Sensor networks, which consist of sensor nodes each capable of sensing environment and
transmitting data, have lots of applications in battlefield surveillance, environmental …

Network lifetime has become the key characteristic for evaluating sensor networks in an
application-specific way. Especially the availability of nodes, the sensor coverage, and the …

Abstract Recently, Wireless Sensor Networks (WSNs) are widely used for monitoring and
tracking applications. Sensor mobility adds extra flexibility and greatly expands the …

Network diagnosis, an essential research topic for traditional networking systems, has not
received much attention for wireless sensor networks. Existing sensor debugging tools like …

In this paper, we consider the connected target coverage (CTC) problem with the objective
of maximizing the network lifetime by scheduling sensors into multiple sets, each of which …

Unlike convectional omni-directional sensors that always have an omni-angle of sensing
range, directional sensors may have a limited angle of sensing range due to technical …

We investigate the benefits of a heterogeneous architecture for wireless sensor networks
(WSNs) composed of a few resource rich mobile relay nodes and a large number of simple …

Unlike convectional omnidirectional sensors that always have an omni-angle of sensing
range, directional sensors may have a limited angle of sensing range due to the technical …

Abstract Wireless Sensor Network (WSN) is an emerging technology that is gaining much
importance owing to its immense contribution in various day-to-day applications. A sensor is …

To achieve power efficient monitoring of targets by sensor networks, various coverage
algorithms have been proposed. These algorithms divide the sensor nodes into cover sets …