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Even though the wireless positioning in sensor networks has been extensively studied in the past decades, there is no contribution discussing positioning the receiver that belongs to another system, i.e., the third-party receiver. In this paper, we propose a new scheme to solve the problem by full-duplex rtechnique. In our scheme, we let the sensors conduct the full-duplex relay for the target receiver...
The tree-based routing topology is widely used in various Wireless Sensor Networks (WSNs) to provide periodic data gathering. Sensors gather data and then report to the sink after data aggregation. Since sensors are usually energy limited in WSNs, it is always important to conserve node energy and extend the network lifetime that defined as the time elapsed since the network starts until the first...
We consider a decentralized detection problem in a power-constrained wireless sensor networks (WSNs), in which a number of sensor nodes collaborate to detect the presence of a deterministic vector signal. The signal to be detected is assumed known a priori. Each sensor conducts a local linear processing to convert its observations into one or multiple messages. The messages are conveyed to the fusion...
We consider a decentralized detection problem in a power-constrained wireless sensor network (WSN), in which a number of sensor nodes collaborate to detect the presence of a deterministic vector signal. The signal to be detected is assumed known a priori. Each sensor conducts a local linear processing to convert its observations into one or multiple messages. The messages are conveyed to the fusion...
An enhanced ordered binary decision diagram (EOBDD) algorithm is proposed to evaluate the reliability of wireless sensor networks (WSNs), based on the considerations of the common cause failure (CCF) and a large number of nodes in WSNs. The EOBDD algorithm analyzes the common cause event (CCE) and the network structure when CCE takes place according to the stochastic graph and the CCF model of WSNs...
Recent research shows that the node energy in WSNs can be significantly saved by integrating mobile BS into the network, which is capable of collecting data from sensor nodes. However, the mobile BS may aggravate the latency problem of the network, and thus hinder its use. Rendezvous points are a subset of nodes that buffer data from other sensor nodes, and transfer the buffered data to mobile BS...
This paper addresses the QOS routing, key technology to provide differential services and utilize the whole resource effectively for wireless sensor networks. Based on the analyzing of QOS routing for wireless sensor networks, a new distributed QOS routing algorithm, according to the minimum node energies simulation model, is presented. Using OPNET we make some simulation of this model. By analyzing...
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