Proceedings ArticleDOI
Next century challenges: mobile networking for “Smart Dust”
Joseph M. Kahn,Randy H. Katz,Kristofer S. J. Pister +2 more
- pp 271-278
TLDR
This work reviews the key elements of the emergent technology of “Smart Dust” and outlines the research challenges they present to the mobile networking and systems community, which must provide coherent connectivity to large numbers of mobile network nodes co-located within a small volume.Abstract:
Large-scale networks of wireless sensors are becoming an active topic of research. Advances in hardware technology and engineering design have led to dramatic reductions in size, power consumption and cost for digital circuitry, wireless communications and Micro ElectroMechanical Systems (MEMS). This has enabled very compact, autonomous and mobile nodes, each containing one or more sensors, computation and communication capabilities, and a power supply. The missing ingredient is the networking and applications layers needed to harness this revolutionary capability into a complete system. We review the key elements of the emergent technology of “Smart Dust” and outline the research challenges they present to the mobile networking and systems community, which must provide coherent connectivity to large numbers of mobile network nodes co-located within a small volume.read more
Citations
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Journal ArticleDOI
A Novel Scheme for WSAN Sink Mobility Based on Clustering and Set Packing Techniques
TL;DR: A novel method, based on the set packing algorithm and traveling salesman problem, is proposed, to accomplish the goal of improving the efficiency as well as fairness of data gathering in WSANs.
Journal ArticleDOI
A 100 $\mu$ W 128 $\times$ 64 Pixels Contrast-Based Asynchronous Binary Vision Sensor for Sensor Networks Applications
TL;DR: An ultra-low power 128 times 64 pixels vision sensor is here presented, featuring pixel-level spatial contrast extraction and binarization, and the pixel-embedded binary frame buffer allows the sensor to directly process visual information, such as motion and background subtraction, which are the most useful filters in machine vision applications.
Journal ArticleDOI
Exact and heuristic methods to maximize network lifetime in wireless sensor networks with adjustable sensing ranges
TL;DR: Some heuristic approaches and an exact approach based on the column generation technique are presented that prove the advantage in terms of solution quality of using adjustable sensing ranges with respect to the classical single range scheme.
Proceedings ArticleDOI
Coverage issue in sensor networks with adjustable ranges
Jie Wu,Shuhui Yang +1 more
TL;DR: In this paper, the problem of maintaining sensing coverage by keeping a small number of active sensor nodes and a small amount of energy consumption in wireless sensor networks was studied, and two new energy-efficient models of different sensing ranges were proposed.
Proceedings ArticleDOI
Power-efficient data dissemination in wireless sensor networks
TL;DR: A new event-based communication model for wireless multi-hop networks of energy-constrained devices such as sensor networks that can be determined in both a centralized and distributed fashion, and is highly dynamic to suit the changing rates at which events are generated and distributed through the network.
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TL;DR: The Diamond Age as discussed by the authors is a major novel from one of the most visionary writers of our time, with a protagonist who breaks the rigorous moral code of his tribe, the powerful Neo-Victorians, by making an illicit copy of a state-of-the-art interactive device called a young lady's illustrated primer.
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Journal Article
Optical communication using micro corner cube reflectors
TL;DR: In this paper, surface micromachined corner cube reflectors made of 250 /spl mu/m square hinged polysilicon plates have been demonstrated to transmit digital signals over a range of 2 meters by reflecting an interrogating 5 mW laser.
Proceedings ArticleDOI
Optical communication using micro corner cube reflectors
TL;DR: Surface micromachined corner cube reflectors made of 250 /spl mu/m square hinged polysilicon plates have been demonstrated to transmit digital signals over a range of 2 meters by reflecting an interrogating 5 mW laser.