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检索条件"任意字段=5th IEEE International Conference on Distributed Computing in Sensor Systems"

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KeyLED - transmitting sensitive data over out-of-band channels in wireless sensor networks

KeyLED - transmitting sensitive data over out-of-band channe...

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Rodrigo Roman Javier Lopez Computer Science Department University of Malaga Spain

An ldquoout-of-bandrdquo (OoB) channel can be defined as an extra channel, different from the main wireless channel, that has additional security properties. they are specially suitable for protecting spontaneous interactions and exchanging sensitive data between previously unknown devices. Due to the vulnerable nature of wireless sensor networks (WSN), these kind of channels might be useful for protecting certain sensor network operations. In this paper we analyze the applicability of ldquoout-of-bandrdquo channels to wireless sensor networks, and specify why an optical channel should be a good candidate for implementing an extra channel in sensor nodes. Also, we analyze how the existing security threats may affect this type of channel. Finally, the suitability and usability of optical channels for sensor networks is demonstrated by means of a prototype.

关键词： Receivers Light emitting diodes Wireless sensor networks Humans Security Optical sensors Communication channels

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An intrusion detection system for wireless process control systems

An intrusion detection system for wireless process control s...

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Tanya Roosta Dennis K. Nilsson Ulf Lindqvist Alfonso Valdes Department of Electrical Engineering and Computer Science UC-Berkeley Department of Computer Science and Engineering Chalmers University of Technology Sweden Computer Science Laboratory SRI International

A recent trend in the process control system (PCS) is to deploy sensor networks in hard-to-reach areas. Using wireless sensors greatly decreases the wiring costs and increases the volume of data gathered for plant monitoring. However, ensuring the security of the deployed sensor network, which is part of the overall security of PCS, is of crucial importance. In this paper, we design a model-based intrusion detection system (IDS) for sensor networks used for PCS. Given that PCS tends to have regular traffic patterns and a well-defined request-response communication, we can design an IDS that models normal behavior of the entities and detects attacks when there is a deviation from this model. Model-based IDS can prove useful in detecting unknown attacks.

关键词： Monitoring SCADA systems Wireless sensor networks Wireless communication Process control Security Intrusion detection

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Data quality driven sensor reporting

Data quality driven sensor reporting

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Doug Hakkarinen Qi Han Department of Mathematical and Computer Sciences Colorado Schml of Mines Golden USA

Within the field of event driven data reporting from wireless sensor networks, reducing energy consumption is an ongoing problem. Using an applicationpsilas tolerance toward data imprecision (or, data quality) allows energy savings, via fewer messages sent, through the selection of how and when to send sensor readings. this paper is an early work that examines pushing or pulling data depending on which approach is expected to send fewer messages, based upon the recent history of application requests for a sensor and the changes of the sensor values predicted by application specific models. the simulation results indicate that our method is more efficient relative to the push only or pull only methods for situations where application request frequency or data change rate is variable or unknown.

关键词： Base stations Data models Approximation methods Wireless sensor networks Predictive models Energy consumption History

来源：评论

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sensor Andrew: Ubiquitous wide campus sensing exploitation

Sensor Andrew: Ubiquitous wide campus sensing exploitation

引用

international conference on Networked Sensing systems (INSS)

作者： Jose M. F. Moura Department of Electrical and Computer Engineering Carnegie Mellon University USA

Summary form only given. Carnegie Mellon University has a long history of innovation in campus wide availability of networking infrastructures. In the early 80psilas, Andrew was inaugurated as a campus wide (wired) networking infrastructure that in a few years networked faculty, staff, and students (undergraduate and graduate) all across campus - offices, dormitories, room facilities. In 1995, Carnegie Mellon embarked on a similar effort with wireless Andrew that from 6 access points in 1995 went to hundreds and then thousands of access points in a couple of years providing global campus wireless coverage (see ieee Personal Communications Magazine, February 1996). Both infrastructures served as campus wide testbeds to experiment and develop emergent technologies at the time. In 2006, Carnegie Mellon, through CenSCIR, the newly formed Center for Sensed Critical Infrastructure Research, has launched sensor Andrew, a campus wide living laboratory to deploy thousands of sensing platforms of various types, providing campus wide instrumentation coverage, and supporting the breadth of applications users feel the need to develop. this keynote will overview sensor Andrew, and describe its hardware, software, and middleware infrastructure, as well as some of the applications that are being developed. We will also address the issues related to what to do with the large amounts of data collected by an application supported on sensor Andrew, how to process these data in a distributed fashion, and how to infer from the localized sensor information global understanding and global behaviors.

关键词： Wireless communication Wireless sensor networks distributed databases Awards activities sensors History Middleware

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SpyMon: Hidden network monitoring for security in wireless sensor Networks

SpyMon: Hidden network monitoring for security in wireless s...

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Lei Yu Jianzhong Li Department of Computer Science and Technology Harbin Institute of Technology Heilongjiang China

Network monitoring is a basic component for intrusion detection and also an energy-expensive task. However in the existing works the contradiction between energy efficiency and security of network monitoring isnpsilat well handled. In this paper, we propose SpyMon, a network monitoring mechanism for the sensor network. To achieve energy-efficiency and reliability, a subset of sensor nodes are randomly selected as monitors in the network and each sensor node is monitored by at least k nodes. For the resistance against the attacks, the monitors are protected from identity exposure to prevent them becoming the explicit targets of adversaries. A collective monitoring triggering scheme is also proposed to further improve the capability and reliability of monitoring. Our analysis shows that SpyMon is resilient against node compromise while attaining energy efficiency.

关键词： Monitoring Security Intrusion detection Energy efficiency Base stations Reliability Network topology

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Development of a bedsore prevention system based on LabVIEW

Development of a bedsore prevention system based on LabVIEW

引用

5th international conference on Information Technology and Applications in Biomedicine (ITAB) in conjunction with the 2nd international Symposium and Summer School on Biomedical and Health Engineering (IS3BHE)

作者： Hao Xiaoxia Zhou Runjing Inner Mongolia Univ Coll Elect Informat Engn Dept Automat Hohhot 010021 Inner Mongolia Peoples R China

ISBN: (纸本)9781424422548

A pressure measurement and analysis system was designed based on the conventional bedsore prevention mattress. the mattress is divided into four areas according to the characteristics of human body and the charging and deflating operations of the air chambers in each area are controlled separately by different pumps. Pressure signals in each area are detected by the system hardware, and then analyzed in the LabVIEW virtual instrument. the areas need to be massaged can be recognized by system, not only according to the magnitudes of pressure signals, but also according to the detected immovability duration of each part. the pressure changes can be visually displayed, and that is useful for clinic observation.

关键词： Instruments Humans Stress sensor systems Pressure measurement Circuits Immune system Head Hardware Signal analysis

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Wireless Less-Invasive Blood Pressure Sensing Microsystem for Small Laboratory Animal In Vivo Real-Time Monitoring

Wireless Less-Invasive Blood Pressure Sensing Microsystem fo...

引用

5th international conference on Networked Sensing systems

作者： Cong, Peng Ko, Wen H. Young, Darrin I. Case Western Reserve Univ Dept Elect Engn & Comp Sci Cleveland OH 44106 USA

ISBN: (纸本)9784907764319

A novel wireless less-invasive implantable blood pressure sensing system is developed for advanced biological research. the system employs a miniature instrumented elastic cuff, wrapped around a blood vessel, for small animal real-time blood pressure monitoring. the elastic cuff is made of bio-compatible soft silicone material by a molding process and is filled by insulating silicone oil with an immersed MEMS capacitive pressure sensor interfaced with low power integrated electronics. this technique avoids vessel penetration and substantially minimizes vessel restriction due to the soft cuff elasticity, thus attractive for long-term implant. the MEMS pressure sensor detects the coupled blond pressure waveform caused by the vessel expansion and contraction, followed by amplification, digitization, and wireless FSK data transmission to an external receiver. the integrated electronics are designed with capability of receiving RF power from an external power source and converting the RF signal to a stable 2V DC supply in an adaptive manner to power the overall implant system, thus enabling a realization of stand-alone battery-less implant microsystem. the electronics are fabricated in a 1.5 mu m CMOS process and occupies an area of 2 mm x 2 mm. the prototype monitoring cuff is wrapped around the right carotid artery of a laboratory rat to measure real-time blood pressure waveform. the measured in vivo blood waveform is compared with a reference waveform recorded simultaneously by using a commercial catheter-tip transducer inserted into the left carotid artery. Two measured waveforms are closely matched with a constant scaling factor. the ASIC is interfaced with a 5 mm-diameter RF powering coil and four surface-mount components (one inductor and three capacitors) over a thin flexible substrate via bond wires, followed by silicone coating and packaging with the prototype blood pressure monitoring cuff. the overall system exhibits a weight of 280 mg, representing an order

关键词： Microsystem MEMS pressure sensor Blood pressure monitoring RF powering Biomedical device

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GroupBeat: Wireless sensor networks made reliable

GroupBeat: Wireless sensor networks made reliable

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Sameh Gobriel Sherif Khattab Daniel Mosse Rami Melhem Corporate Technology Group Intel Corporation Computer Science Department University of Pittsburgh USA

In wireless sensor networks (WSN) node failures are typically detected using a heartbeat application, where a neighbor detects a failed node when it misses successive short messages (ldquoheartbeatsrdquo) that should have been sent by the failed node. However, wireless links are usually lossy, hence, to distinguish node failures from intermittent link failures, the threshold on the number of missed heartbeats is usually set to a large number, incurring in a long delay for declaring a node dead. In this paper we present ldquoGroupBeatrdquo an accurate node failure detection system for WSN and propose the ldquoCommunication By Signalingrdquo scheme as an energy-efficient low-overhead implementation of GroupBeat.

关键词： Heart beat Wireless sensor networks Receivers sensors Aggregates Signal to noise ratio Wireless communication

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DiCoR: distributed cooperative repair of multimedia broadcast losses

DiCoR: Distributed cooperative repair of multimedia broadcas...

引用

international conference on Broadband Networks (BroadNets)

作者： Saqib Raza Gene Cheung Chen-Nee Chuah Department of Computer Science University of California Davis USA Hewlett Packard Laboratories Tokyo Japan Department of Electrical & Computer Engineering University of California Davis USA

Multimedia Broadcast/Multicast Service (MBMS) allows a common broadcast channel to be shared by users interested in identical content. We explore the problem of enhancing MBMS resilience by repairing packets lost during broadcast. Since MBMS broadcast consumes expensive 3G resources, we leverage the ubiquity of multi-homed mobile devices i.e., devices having both cellular and ieee 802.11 wireless interfaces. We thus accomplish out-of-band repair of MBMS packet losses through an ad-hoc, peer-to-peer 802.11-based network. A fundamental challenge in scheduling repair transmissions is handling interference between distributed nodes. We present DiCoR, a fully distributed protocol for CPR. Our protocol does not assume any a priori knowledge of the network topology or peer losses, and is resilient to dynamic network changes due to node mobility or the continuous joining and leaving of peers. Detailed simulation experiments, under realistic loss models and network conditions, demonstrate that DiCoR presents a viable solution for timely out-of-band loss repair of MBMS real-time broadcast.

关键词： Digital multimedia broadcasting Multimedia communication Peer to peer computing Protocols Optimal scheduling Forward error correction distributed computing Interference Network topology Scheduling algorithm

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Enabling Accurate Node Control in Randomized Duty Cycling Networks

Enabling Accurate Node Control in Randomized Duty Cycling Ne...

引用

ieee international conference on distributed computing systems

作者： Kang-Won Lee Vasileios Pappas Asser Tantawi IBM T. J. Watson Research Center

ISBN: (纸本)9781424431748

In this paper, we propose a novel duty cycling algorithm for a large-scale dense wireless sensor networks. the proposed algorithm is based on a social behavior of nodes in the sense that individual node's sleep/wakeup decision is influenced by the state of its neighbors. We analyze the behavior of the proposed duty cycling algorithm using a stochastic spatial process. In particular, we consider a geometric form of neighborhood dependence and a reversible Markov chain, and apply this model to analyze the behavior of the duty cycling network. We then identify a set of parameters for the reversible spatial process model, and study the steady state of the network with respect to these parameters. We report that our algorithm is scalable to a large network, and can effectively control the active node density while achieving a small variance. We also report that the social behavior of nodes has interesting and non-obvious impacts on the performance of duty cycling. Finally, we present how to set the parameters of the algorithm to obtain a desirable duty cycling behavior.

关键词： Cycling Social Behavior Ganglia Markov chain Geometric forms IMPACT PROPERTIES algorithms procedural model Scalability Wireless sensor networks Network

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