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 …

In this paper we investigate the benefits of a heterogeneous architecture for wireless sensor
networks composed of a few resource rich mobile nodes and a large number of simple static …

Sensors are used to monitor and control the physical environment. In mobile sensor
networks, nodes can self-propel via springs, wheels, or they can be attached to transporters …

Wireless sensor networks that operate on batteries have limited network lifetime. There have
been extensive recent research efforts on how to design protocols and algorithms to prolong …

In a heterogeneous wireless sensor network (WSN), relay nodes (RNs) are adopted to relay
data packets from sensor nodes (SNs) to the base station (BS). The deployment of the RNs …

In multihop wireless sensor networks that are often characterized by many-to-one
(convergecast) traffic patterns, problems related to energy imbalance among sensors often …

Wireless Sensor Networks (WSNs) are increasingly used in data-intensive applications such
as microclimate monitoring, precision agriculture, and audio/video surveillance. A key …

While a lot of existing research attempts to extend the lifetime of a wireless sensor network
(WSN) by designing energy efficient networking protocols, the impact of random device …

Although many energy efficient/conserving routing protocols have been proposed for
wireless sensor networks, the concentration of data traffic towards a small number of base …

Transmission power control has paramount importance in the design of energy-efficient
wireless sensor networks (WSNs). In this paper, we systematically explore the effects of …