In the sensor network the nodes which are nearer to the base station (BS) have additional
communication loads of forwarding data generated by distant nodes. Thus they lose their …

The positioning of nodes in a sensor network has an effect in its performance. In this paper,
two predefined configurations are compared to the random distribution to gauge the …

In this paper we focus on the energy optimization based on the incremental exploration of
the network. We perform one-hop neighborhood exploration of the neighborhood but the …

We investigate the effect of a directional antenna in wireless sensor networks from the
perspective of network lifetime extension. Previous studies on wireless sensor networks …

Connectivity is a crucial requirement for wireless sensor network deployments. Without
being able to guarantee a reasonable level of connectivity, many critical network operations …

Sensor networks are becoming one of the most used technologies in our lives. Although
there are several surveys about sensor networks, almost all of them focus on theoretical …

Most of studies only consider that wireless sensor networks are equipped with only omni-
directional antennas, which can cause high collisions. It is shown that the per node …

Wireless sensor networks have become possible because of the on-going improvements in
sensor technology and VLSI. One issue in smart sensor networks is achieving efficient …

Sensor networking has emerged as a promising tool for monitoring and actuating the
devices of the physical world, employing self-organizing networks of battery-powered …

Wireless Sensor networks (WSN) have become a focus of research in the last few years.
WSN is composed of small battery-powered devices that has sensors and wireless …