In last two decades, various monitoring systems have been designed and deployed in urban
environments, toward the realization of the so called smart cities. Such systems are based …

Sweep coverage plays an important role in many applications like data gathering, sensing
coverage, and devices control. In this paper, we deal with the sweep coverage problem with …

Heterogeneous sensor networks (HSNs) comprise of different types of sensors with varying
range and sensing quality. Coverage is one of the most important performance metrics for …

The development of engineering technology such as inspection robots (IR) for transmission
lines and wireless sensor networks (WSN) are widely used in the field of smart grid …

Barrier Coverage plays a vital role in wireless sensor networks. Research on barrier
coverage has mainly focused on the lifetime maximization and the critical conditions to …

Barrier coverage has been widely used to detect intrusions in wireless sensor networks
(WSNs). It can fulfill the monitoring task while extending the lifetime of the network. Though …

In the barrier resilience problem (introduced by Kumar et al., Wireless Networks 2007), we
are given a collection of regions of the plane, acting as obstacles, and we would like to …

Barrier coverage is attractive for many practical applications of directional sensor networks.
Power conservation is one of the important issues in directional sensor networks. In this …

To satisfy the coverage requirements in wireless sensor networks (WSNs), redundant
sensors are usually deployed, which may cause unnecessary energy consumption on …