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WiMob 2010

WiMob 2010

引用

ieee international conference on Wireless and Mobile computing, Networking And Communications (WiMob)

the following topics are dealt with: vehicular networking; mobile networking; wireless networks; ad-hoc networks; sensor networks; vehicular communications; network assurance; security services; ubiquitous environments; cooperative mobile protocols; mobile computing; wireless computing; wireless sensor networks; actuator networks; MIMO-OFDM systems; air interfaces; smart systems; mobility; nomadicity; and next generation networks.

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Detecting border intrusion using wireless sensor network and artificial neural network

Detecting border intrusion using wireless sensor network and...

引用

ieee international conference on distributed computing in sensor systems Workshops (dcossW)

作者： Ashish Mishra Komal Sudan Hamdy Soliman Department of Computer Science and Engineering New Mexico Technology Socorro NM USA

Monitoring movement across national borders is a challenging problem due to several economic and technical issues. Due to the vast size, remoteness and other geographical confines of border regions, technical solutions are necessary to complement the limitations of manpower. In this paper we discuss our research in developing a system for detecting border intrusion activity by combining wireless sensor networks with artificial neural networks (ANNs). the key idea is to use ANN models to discover distinct patterns that describe an intrusion activity and use these patterns to train the ANN model which will then recognize intrusions and other abnormalities. We present a border intrusion detection system in which light and sound data from low-cost sensor motes spread out on the field is used to help ANNs make automated decisions and report intrusion activity. Our experimental results show that our border intrusion detection system can be used to monitor the borders without constant human supervision.

关键词： Artificial neural networks Biological neural networks Intrusion detection Monitoring Support vector machine classification Backpropagation Base stations

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QoS-aware Relay node Placement for connecting disjoint segments in wireless sensor networks

QoS-aware Relay node Placement for connecting disjoint segme...

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ieee international conference on distributed computing in sensor systems Workshops (dcossW)

作者： Sookyoung Lee Mohamed Younis Department of Computer Science and Electrical Engineering University of Maryland Baltimore MD USA

Wireless sensor networks (WSNs) often operate in severe surroundings and may suffer simultaneous failure of multiple nodes which gets the network partitioned into distinct segments. Restoring connectivity among these segments is crucial in order to prevent the negative effects on the application. this paper investigates effective approaches for recovering from the failure for scenarios where the distance between pairs of segments is longer than twice the communication range of a node and inter-segment quality of service (QoS) requirements have to be met. We model the deployment area as a grid. the optimization problem is then mapped to selecting the fewest cell count to populate relay nodes such that all segments are connected and their QoS requirements are fulfilled. Finding the optimal number and position of relay nodes with respect to length and QoS between segments is NP-hard and heuristics are thus pursued. We present a QoS-aware Relay node Placement (QRP) algorithm and validate the performance of QRP through extensive simulation experiments.

关键词： Quality of service Relays Wireless sensor networks Topology Optimized production technology Steiner trees Partitioning algorithms

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6LoWPAN Compressed DTLS for CoAP

6LoWPAN Compressed DTLS for CoAP

引用

international conference on distributed computing in sensor systems (dcoss)

作者： Shahid Raza Daniele Trabalza thiemo Voigt Swedish Institute of Computer Science Kista Sweden

Real deployments of the IoT require security. CoAP is being standardized as an application layer protocol for the Internet of things (IoT). CoAP proposes to use DTLS to provide end-to-end security to protect the IoT. DTLS is a heavyweight protocol and its headers are too long to fit in a single ieee802.15.4 MTU. 6LoWPAN provides header compression mechanisms to reduce the size of upper layer headers. 6LoWPAN header compression mechanisms can be used to compress the security headers as well. In this paper we propose 6LoWPAN header compression for DTLS. We link our compressed DTLS with the 6LoWPAN standard using standardized mechanisms. We show that our proposed DTLS compression significantly reduces the number of additional security bits. For example, only for the DTLS Record header that is added in every DTLS packet, the number of additional security bits can be reduced by 62%. Our compressed-DTLS is the first lightweight 6LoWPAN extension for DTLS.

关键词： Protocols Security Internet Standards Silicon Servers Tin

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An on-demand bluetooth scatternet formation and routing protocol for wireless sensor networks

An on-demand bluetooth scatternet formation and routing prot...

引用

6th international conference on Software Engineering, Artificial Intelligence, Networking and Parallel/distributed computing and 1st ACIS international Workshop on Self-Assembling Wireless Networks, SNPD/SAWN 2005

作者： Zhang, Xin Riley, George F. Department of ECE Georgia Institute of Technology Atlanta GA 30332-0250

ISBN: (纸本)0769522947

Bluetooth is a promising short-range wireless communication technology with the characteristics of interference resilience and power efficiency which are required by wireless sensor networks. As an enhanced sensor node platform, the Intel Mote uses Bluetoth as its radio scheme and MAC protocol. However, most of the existing scatternet formation protocols intend to connect all the nodes within the networks regardless of traffic pattern. For wireless sensor network applications with traffic of low duty cycle, on-demand scatternet formation and routing achieve significant power saving by avoiding to maintain the entire network connectivity. We propose in this paper an on-demand scatternet and route formation protocol for Bluetooth-based wireless sensor networks. It is able to cope with multiple sources initiating traffic simultaneously in densely deployed wireless sensor networks. We also introduce a modified Inquiry scheme using extended ID packet for power efficient propagation of route request messages. Furthermore, we propose a mechanism employing POLL packets in Page processes to transfer scatternet formation and route reply information without extra overhead. Simulation results show that our on-demand scatternet formation and routing protocol can provide multihop channels with reasonable delay for Bluetooth-base wireless sensor networks. © 2005 ieee.

关键词： Wireless telecommunication systems

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A hybrid sensor network for the real-time condition monitoring of rotating machinery

A hybrid sensor network for the real-time condition monitori...

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ieee international conference on distributed computing in sensor systems Workshops (dcossW)

作者： Rui P. N. Gomes Sérgio P. S. Faria José E. G. Oliveira Paulo M. R. Falcão Francisco J. A. Cardoso Physics Department Faculty of Science and Technology University of Coimbra Portugal Eneida Instrumentation Coimbra Portugal

In this demo we address an application of a Predictive Maintenance Industrial system, for the monitoring of rotating machinery, which integrates both wired and wireless sensors, which comprise a triaxial acceleration sensor and a temperature sensor, in an Hybrid Network of sensors. the emphasis of the demonstration will be in this dual existence of networks, all integrated in one monitoring system. the setup will consist on the installation of two temperature and vibration sensor networks: i) a Zigbee network, ii) a Controller Area Network (CAN) which, through a Gateway setup, will be transmitting sensor data remotely, via the Zigbee network. All the information will be monitored in a PC, which will allow sensor configuration and the request of different kinds of desired data.

关键词： Zigbee Wireless sensor networks Wireless communication Monitoring Temperature sensors Logic gates Vibrations

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Repeatable experiments with mobile nodes in a relocatable WSN testbed

Repeatable experiments with mobile nodes in a relocatable WS...

引用

ieee international conference on distributed computing in sensor systems Workshops (dcossW)

作者： Olof Rensfelt Frederik Hermans Per Gunningberg Lars-Åke Larzon IT Department University of Uppsala Sweden

We present Sensei-UU, a testbed that supports mobile sensor nodes. the design objectives are to provide wireless sensor network (WSN) experiments with repeatable mobility and to be able to use the same testbed at different locations, including the target location. the testbed is inexpensive, expandable, relocatable and it is possible to reproduce it by other researchers. Mobile sensor nodes are carried by robots that use floor markings for navigation and localization. the testbed is typically used to evaluate WSN applications when sensor nodes move in meters rather than millimeters, eg. when human carries a mobile data sink (mobile phone) collecting data while passing fixed sensor nodes. To investigate the repeatability of robot movements, we have measured the achieved precision and timing of the robots. this precision is of importance to ensure the same radio link characteristics from one protocol experiment to another. We find that our robot localization is accurate to ±1 cm and variations in link characteristics are acceptably low to capture fading phenomena in ieee 802.15.4. In the paper we show repeatable experiment results from three environments, two university corridors and from an anechoic chamber. We conclude that the testbed is relocatable between different environments and that the precision is good enough to capture fading effects in a repeatable way.

关键词： Robot sensing systems Mobile communication Wireless sensor networks Protocols Anechoic chambers Buildings

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Power-aware QoS geographical routing for wireless sensor networks — Implementation using Contiki

Power-aware QoS geographical routing for wireless sensor net...

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ieee international conference on distributed computing in sensor systems Workshops (dcossW)

作者： Djamel Djenouri Ilangko Balasingham Department of Electronics and Telecommunications NTNU Trondheim Norway CERIST Center of Research Algiers Algeria Interventional Center Rikshospitalet HF Rikshospitalet HF Oslo Norway

this paper presents the design and implementation of a new geographical quality of service (QoS) routing for wireless sensor networks. the protocol is based on traffic differentiation and provides customized QoS according to the traffic requirement. For each packet, the protocol attempts to fulfill the required data-related QoS metric(s) while considering power-efficiency. the data related metrics include packet latency and reliability, while power-efficiency has been considered for both power transmission minimization and residual energy maximization (load balancing). the protocol has been implemented in real sensor motes using Contiki operating system, which offers many modules and has many features that facilitate efficient communication protocol implementation. the protocol was then evaluated in a testbed. the experimental results show good QoS performance, and particularly, traffic-differentiation QoS as expected, i.e., QoS-sensitive packets were routed with better performances than regular packets. the protocol is generic and applies to any application with traffic requiring different QoS, such as in biomedical and vehicular applications.

关键词： Quality of service Routing Wireless sensor networks Routing protocols Reliability Delay

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6th ieee international Workshop on sensor Networks and systems for Pervasive computing PerSeNS 2010: Message from the workshop chairs

6th IEEE International Workshop on Sensor Networks and Syste...

引用

ieee Annual conference on Pervasive computing and Communications Workshops (PerCom)

作者： Daniele Puccinelli Giuseppe Anastasi Silvia Giordano University of Applied Sciences of Southern Switzerland (SUPSI) Switzerland University of Pisa Italy

We are pleased to present the Proceedings of the Sixth international Workshop on sensor Networks and systems for Pervasive computing (PerSeNS 2010), held in conjunction with PerCom 2010.

关键词： conferences sensor arrays Informatics Telematics Councils sensor systems Pervasive computing Protocols Computer architecture Information technology

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Efficient failure recovery in Wireless sensor Networks through active, spare designation

Efficient failure recovery in Wireless Sensor Networks throu...

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ieee international conference on distributed computing in sensor systems Workshops (dcossW)

作者： Ketaki Vaidya Mohamed Younis Department of Computer Science and Electrical Engineering University of Maryland Baltimore MD USA

In some applications a sensor network is composed of a set of mobile nodes deployed in an area of interest in order to collectively monitor suspicious activities, perform surveillance tasks, etc. Such collaboration needs frequent inter-node interaction and requires strong network connectivity. A sudden node failure may make nodes unreachable causing the network to partition. In addition, the loss of a node may result in a degraded coverage in certain area, and can thus negatively affect the network operation. Traditional recovery approaches pursue node repositioning upon the detection of the failure in order to reestablish connectivity. Unlike these reactive recovery approaches, this paper argues that some pre-failure planning would facilitate and expedite the recovery process. the idea is to find spare nodes inside a network, prior to the failure that can volunteer to replace the failed node. Identification of spare nodes is done based upon coverage overlap and node degree. A spare node is designated based on the contribution of a node to the network coverage and connectivity. When a failure is detected, the most suitable active spare is called to replace the dead node and the network topology is adjusted through a series of cascaded motion. the proposed approach is validated through simulation.

关键词： Availability Wireless sensor networks Network topology Topology sensors Measurement Planning

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