Wireless sensor networks (WSNs) are taking a big step forward to productive deployments. Heterogeneous WSNs are gaining importance. Complex problem settings consisting of different environmental conditions require specific sensor nodes for the individual tasks resulting in heterogeneous networks. As the different types of sensor nodes may be incompatible, a more general management architecture ...

Wireless sensor networks are often located in areas where access to them is difficult or dangerous. Today, in wireless sensor networks, cluster-based routing protocols by dividing sensor nodes into distinct clusters and selecting local head-clusters to combine and send information of each cluster to the base station and balanced energy consumption by network nodes, get the best performance ...

wireless sensor networks are composed of hundreds or thousands of small nodes called sensor that work together and are associated with a specific task or tasks to do. each of these nodes includes sensor, processor, communication components, a small memory and a source of energy. it is expected that wireless sensor networks will be used widely in many applications in near future. scalability and...

Wireless sensor networks are an emerging technology for monitoring physical domain. The energy limitation of wireless sensor networks makes energy sparing and augmenting the network lifetime turn into the most essential objectives of different routing protocols. Heterogeneous wireless sensor network (WSN) comprises of sensor nodes with distinctive capability, for example, diverse computing powe...

Wireless sensor networks are often located in areas where access to them is difficult or dangerous. Today, in wireless sensor networks, cluster-based routing protocols by dividing sensor nodes into distinct clusters and selecting local head-clusters to combine and send information of each cluster to the base station and balanced energy consumption by network nodes, get the best performance ...

Data aggregation processes aim to reduce the amount of exchanged data in wireless sensor networks and consequently minimize the packet overhead and optimize energy efficiency. Securing the data aggregation process is a real challenge since the aggregation nodes must access the relayed data to apply the aggregation functions. The data aggregation security problem has been widely addressed in cla...

With advances in sensor networking technology, new applications involving remote and real-time data collection are becoming popular and becoming increasingly deployed. For applications that are deployed in remote locations or deployed at a large scale, over-the-air remote programming may be needed to update the application code executing on the sensor nodes. Deluge is a protocol that provides t...

We present Geometric Broadcast for Heterogeneous Sensor Networks (GBS), a novel broadcasting protocol for heterogeneous wireless sensor and actor networks. While broadcasting is a very energy expensive protocol, it is also widely used as a building block for a variety of other network layer protocols. Therefore, reducing the energy consumption by optimizing broadcasting is a major improvement i...

Wireless Sensor Network is a field of research which is viable in every application area like security services, patient care, traffic regulations, habitat monitoring and so on. The resource limitation of small sized tiny nodes has always been an issue in wireless sensor networks. Various techniques for improving network lifetime have been proposed in the past. Now the attention has been shifte...