The design of sustainable wireless sensor networks (WSNs) is a very challenging issue. On
the one hand, energy-constrained sensors are expected to run autonomously for long …

Compared with omni‐directional antennas, directional antennas have many merits, such as
lower interference, better spatial reuse, longer transmission range, and improved network …

One of the key challenges for research in wireless sensor networks is the development of
routing protocols that provide application-specific service guarantees. This paper presents a …

Energy efficiency is a primary requirement in a wireless sensor network (WSN). This is a
major design parameter in medium access control (MAC) protocols for WSN due to limited …

The eavesdropping attack is a serious security threat to a wireless sensor network (WSN)
since the eavesdropping attack is a prerequisite for other attacks. Conventional WSNs …

Being often deployed in remote or hostile environments, wireless sensor networks are
vulnerable to various types of security attacks. A possible solution to reduce the security …

In this paper, we investigate the network connectivity of wireless sensor networks with
directional antennas. In particular, we establish a general framework to analyze the network …

The unmanned aerial vehicle (UAV) networks have wide civil applications. However, due to
the 3D deployment and high mobility of UAVs, the neighbor discovery for UAV networks …

The use of smart directional antennas in ad-hoc networks has recently received much
attention since this technology offers a way to optimize power consumption, increase spatial …

The metrics play increasingly fundamental role in the design, development, deployment and
operation of telecommunication systems. Despite their importance, the studies of metrics are …