this paper presents schemes to generate effective feature vectors of low dimension, and also presents a cluster-based algorithm, where sensors form clusters on-demand for the sake of running a classification task base...
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ISBN:
(纸本)9784907764319
this paper presents schemes to generate effective feature vectors of low dimension, and also presents a cluster-based algorithm, where sensors form clusters on-demand for the sake of running a classification task based on the produced feature vectors. the features generated through our proposed schemes are evaluated using K-Nearest Neighbor (k-NN) and Maximum Likelihood (ML) classifiers. the proposed schemes are effective In terms of classification accuracy, and can even outperform previously proposed approaches, but, in addition, they are also efficient in terms of communication overhead.
the proceedings contain 182 papers. the topics discussed include: voting-based clustering algorithm with subjective trust and stability in mobile ad hoc networks;secure message distribution scheme with configurable pr...
ISBN:
(纸本)9780769534923
the proceedings contain 182 papers. the topics discussed include: voting-based clustering algorithm with subjective trust and stability in mobile ad hoc networks;secure message distribution scheme with configurable privacy for heterogeneous wireless sensor networks;user-directed privacy protection in the ubiquitous environment;provably secure trusted access protocol for WLAN mesh networks;research of a multi-dimension measurement trusting model based on Markov chain;convertible undeniable partially blind signature from bilinear pairings;a novel approach to hardware architecture design and advanced optimization techniques for time critical applications;advanced optimization and design issues of a 32-bit embedded processor based on produced order queue computation model;a systematic framework for structured object-oriented security requirements analysis in embeddedsystems;and scheduling aperiodic tasks using total bandwidth server on multiprocessors.
the proceedings contain 182 papers. the topics discussed include: voting-based clustering algorithm with subjective trust and stability in mobile ad hoc networks;secure message distribution scheme with configurable pr...
ISBN:
(纸本)9780769534923
the proceedings contain 182 papers. the topics discussed include: voting-based clustering algorithm with subjective trust and stability in mobile ad hoc networks;secure message distribution scheme with configurable privacy for heterogeneous wireless sensor networks;user-directed privacy protection in the ubiquitous environment;provably secure trusted access protocol for WLAN mesh networks;research of a multi-dimension measurement trusting model based on Markov chain;convertible undeniable partially blind signature from bilinear pairings;a novel approach to hardware architecture design and advanced optimization techniques for time critical applications;advanced optimization and design issues of a 32-bit embedded processor based on produced order queue computation model;a systematic framework for structured object-oriented security requirements analysis in embeddedsystems;and scheduling aperiodic tasks using total bandwidth server on multiprocessors.
We have been developing wireless communication technologies for industrial applications. In industrial plants, there art many radio obstacles such as metal pipes and walls. Even in the severe environment, wireless com...
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ISBN:
(纸本)9784907764319
We have been developing wireless communication technologies for industrial applications. In industrial plants, there art many radio obstacles such as metal pipes and walls. Even in the severe environment, wireless communication has to be reliable and time has to be scheduled to maintain plant stability. For easy-to-use management, features of ad-hoc construction and low power management are also required. Our research is to develop architecture and technologies that satisfy these features. In this demonstration, we will explain core technologies and industrial applications that we developed.
Network based wireless sensing has become an important area of research and various new applications for remote sensing are expected to emerge. One of the promising applications is structural health monitoring of buil...
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ISBN:
(纸本)9784907764319
Network based wireless sensing has become an important area of research and various new applications for remote sensing are expected to emerge. One of the promising applications is structural health monitoring of building or civil engineering structure and it often requires vibration measurement. For the vibration measurement via wireless network, time synchronization Is Indispensable. In this paper, we introduce a newly developed time synchronized wireless sensor network system. the system employs IEEE 802.11 standard based TSF counter and sends the measured data withthe counter value. It enables consistency on common clock among: different wireless nodes. We describe the accuracy evaluation by both mathematical analysis and simulation studies when the size of nodes Increased. the hardware and software specifications of the developed wireless sensing system are shown. the experiments were conducted In a three-story reinforced concrete building and results showed the system performs more than sufficiently.
In this poster we describe and detail a real life application of a wireless sensor network, using a new mesh topology model. this network model leads to a reliability improvement caused by the spatial diversity of the...
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ISBN:
(纸本)9784907764319
In this poster we describe and detail a real life application of a wireless sensor network, using a new mesh topology model. this network model leads to a reliability improvement caused by the spatial diversity of the propagation paths - the reception of multiple packets' copies over many paths, some of them possibly faded or disrupted. To prove the Inherently coordination-free capability, the poster describes the deployment and the operation of the network by personnel who was not trained for the task and the short (less than a day) deployment time. the main discussion is about the architecture of the system and the field test results, as they lead to a high probability that changes in the site are inherently handled by the system without human Intervention. the model, evaluations and results reported concern a commercial pilot of 100 nodes, conducted by the Israel Electric Company in a dense urban area and fully operational since its deployment.
Wireless sensor networks (WSNs) composed of a large number of cheap microsensor nodes with limited battery power and highly correlated collected data is intelligent and autonomous system for measure and management. To...
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ISBN:
(纸本)9780769532875
Wireless sensor networks (WSNs) composed of a large number of cheap microsensor nodes with limited battery power and highly correlated collected data is intelligent and autonomous system for measure and management. To reduce the redundant data among the nodes and consequently prolong networks' lifetime, clustering protocols which perform applicationspecific local data aggregation have been put forward. To balance energy consumption in the whole network, in this paper, we propose and analyze energy-balanced adaptive clustering hierarchy (EBACH) protocol, a novel approach adding a new kind node called relay-node besides cluster-head and cluster member node. Simulation results demonstrate that our energy balancing mechanism can obviously improve the system performance compared with general clustering protocols.
Intermittently connected Wireless sensor Networks (WSN) for scientific environmental monitoring raise the issue for reliable data gathering which is a key factor for having a consistent data stream as a result. First,...
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ISBN:
(纸本)9784907764319
Intermittently connected Wireless sensor Networks (WSN) for scientific environmental monitoring raise the issue for reliable data gathering which is a key factor for having a consistent data stream as a result. First, measurements must be taken and securely saved on a node. Per node local repository for measurements is a basic mechanism for making possible to retransmit any block of data towards a data sink if it has been lost or damaged. Second, high reliable data communication channels are established between nodes, including MAC-layer and application-layer "end-to-end" acknowledgments. the last, and tire most important aspect is using a multi-level data buffering mechanism based on an "aging"-factor for reducing power consumption taken by radio transmissions. We describe our solution, combining all these techniques which is intended for use in a permafrost monitoring project. In our case where half-/hourly measurements are collected over a whole year and nodes can become disconnected for several months, we still manage to provide loss-free and power efficient data delivery.
In this paper, we present an energy efficient, scalable, and distributed node disjoint multipath routing algorithm for Wireless sensor Networks (WSNs). the proposed algorithm, the Multipath Energy-aware Routing Protoc...
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ISBN:
(纸本)9784907764319
In this paper, we present an energy efficient, scalable, and distributed node disjoint multipath routing algorithm for Wireless sensor Networks (WSNs). the proposed algorithm, the Multipath Energy-aware Routing Protocol (MERP), adjusts traffic flows via a novel load balancing scheme. the MERP has a higher average node energy efficiency, lower control overhead, and a shorter average delay than those or well-known previous works. Moreover, since MERP takes Into consideration network reliability, it is useful for delivering data In unreliable environments.
the dynamic nature of wireless communication and the stringent energy constraints are major challenges for the design of low-power wireless sensor network applications. the link quality of a wireless link is known for...
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ISBN:
(纸本)9784907764319
the dynamic nature of wireless communication and the stringent energy constraints are major challenges for the design of low-power wireless sensor network applications. the link quality of a wireless link is known for its great variability, dependent on the distance between nodes, the antenna's radiation characteristic, multipath, diffraction, scattering and many more. Especially for indoor and urban deployments, there are numerous factors impacting the wireless channel. In an extensive experimental study contained In the first part of this paper, we show the magnitude of this problem for current Wireless sensor Networks (WSNs) and that based on the overall connectivity graph of a typical multihop WSN, a large portion of the links actually exhibit very poor characteristics. We present a pattern based estimation technique that allows assessing the quality of a link at startup and as a result to construct an optimal neighbor table right at the beginning using a minimum of resources only. Our estimation technique is superior compared to other approaches where protocols continue to decide on the fly which links to use expending valuable energy both for unnecessary retransmissions and recursive link estimation.
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