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Volume 5, Issue 4July 2009
Reflects downloads up to 28 Dec 2024Bibliometrics
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article
Distributed Phased Arrays and Wireless Beamforming Networks

Distributed phased arrays have advantages over conventional arrays in many radar and communication applications. Additional advantages are realized by replacing the microwave beamforming circuit by a wireless network, thus forming a wirelessly networked ...

article
Coverage and Reliability of Randomly Distributed Sensor Systems with Heterogeneous Detection Range

In this article, we examine the coverage and reliability of distributed sensor networks that are designed for surveillance applications. In particular, we examine a model of sensor network coverage based on Poisson processes, and illustrate how this ...

article
Data Gathering Schedule for Minimal Aggregation Time in Wireless Sensor Networks

Data aggregation promises a new paradigm for gathering data via collaboration among wireless sensors deployed over a large geographical region. Many real-time applications impose stringent delay requirements and ask for time-efficient schedules of data ...

article
Fault Tolerant Evaluation of Continuous Selection Queries over Sensor Data

We consider the problem of evaluating continuous selection queries over sensor-generated values in the presence of faults. Small sensors are fragile, have finite energy and memory, and communicate over a lossy medium; hence, tuples produced by them may ...

article
Energy-Efficient Dynamic Spatial Resolution Control for Wireless Sensor Clusters

In very large-scale dense sensor network applications, more sensor nodes may be deployed than are required to provide the initial desired spatial resolution. Such over-deployment can extend network life, improve robustness, and accommodate network ...

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