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 …

Recently sink mobility has been exploited in numerous schemes to prolong the lifetime of
wireless sensor networks (WSNs). Contrary to traditional WSNs where sensory data from …

Wireless sensor networks (WSNs) have emerged as an effective solution for a wide range of
applications. Most of the traditional WSN architectures consist of static nodes which are …

Several studies have demonstrated the benefits of using a mobile sink to reduce the energy
consumption of nodes and to prevent the formation of energy holes in wireless sensor …

Recent work has shown that sink mobility along a constrained path can improve the energy
efficiency in wireless sensor networks. However, due to the path constraint, a mobile sink …

Over the last decade a large number of routing protocols has been designed for achieving
energy efficiency in data collecting wireless sensor networks. The drawbacks of using a …

In this paper we explore the mobility of a mobile sink in a wireless sensor network (WSN) to
prolong the network lifetime. Since the mechanical movement of mobile sink is driven by …

The longevity of wireless sensor networks (WSNs) is a major issue that impacts the
application of such networks. While communication protocols are striving to save energy by …

Data collection is usually performed in wireless sensor networks by the sensors relaying
data towards a static control center (sink). Motivated by important applications (mostly …

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 …