… the data should be collected from all the sensors … data gathering problem. We present
polynomial–time algorithms to solve the data gathering problem, with and without data aggregation…

… Before analysing the performance of data aggregation, the network context and the energy
consumption model in this work should be prescribed. Some important technical terms …

… work for data aggregation. We study network support for the basic data aggregation operators…
on top of our clustered multi-hop network to provide query processing capabilities and data …

… of data aggregation in a densely deployed sensor network, we … data aggregation at all. That
is, DAA mitigates the redundant data at data aggregators by implementing data aggregation, …

… In this section, we propose a recoverable concealed data aggregation scheme named
RCDA-HOMO for homogeneous WSN. Table 1 lists the notations that we will use later. …

… security problem is still not sufficiently covered and the proposed data aggregation security
… the data aggregation security problem in heterogeneous wireless sensor networks and …

… In wireless sensor networks, the communication cost is often several orders of … data
aggregation, data-centric routing, and in-network processing are very important to extend the …

… by capturing a number of data aggregators that are positioned close to the … data aggregation
and security are critical for wireless sensor networks, achieving secure data aggregation …

… network lifetime, data aggregation protocols may degrade important quality of service metrics
in wireless sensor networks, such as data … of an efficient data aggregation protocol is an …

… In-network data aggregation is essential for wireless sensor networks where energy … diffusion
can achieve significant energy savings with in-network data aggregation [5]. This benefit of …