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Demo abstract: An energy harvesting nonvolatile sensor node and its application to distributed moving object detection

Demo abstract: An energy harvesting nonvolatile sensor node ...

引用

international Symposium on Information Processing in sensor Networks (IPSN)

作者： Yongpan Liu Yiqun Wang Hongyang Jia Shan Su Jinghuan Wen Wenzhu Zhang Lin Zhang Huazhong Yang Dept. of Electronic-Engineering Tsinghua National Laboratory for Information Science and Technology Beijing P. R. China

Energy harvesting sensor nodes based on real nonvolatile processors are demonstrated to show the desirable characteristics of those systems, such as no battery, zero standby power, microsecond-scale sleep and wake-up time, high resilience to random power failures and fine-grained power management. Furthermore, we show its applications to a distributed moving object detection system, one of novel nonvolatile computing systems.

关键词： Nonvolatile memory Program processors Energy harvesting Power supplies Photovoltaic cells Object detection Graphical user interfaces

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Real-Time distributed sensor-Assisted mHealth Applications on the Internet-of-things

Real-Time Distributed Sensor-Assisted mHealth Applications o...

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ieee international conference on Trust, Security and Privacy in computing and Communications (TrustCom)

作者： Stefan Forsström theo Kanter Olle Johansson Department of Information Technology and Media Mid Sweden University Sundsvall Sweden Department of Computer and System Sciences Stockholm University Kista Sweden Acreo AB Hudiksvall Sweden

ISBN: (纸本)9781467321723

Existing sensor-assisted mHealth applications would benefit from large-scale sharing of sensor information in real-time. Existing communication solutions are however limited in this respect, because of centralized application-level communication. In response to this, we presents a distributed communication solution for mHealth applications which circumvents these limitations. Our Internet-of-things architecture enables mHealth applications to utilize information from sensors and wireless sensor networks via a peer-to-peer overlay, where sensor information is organized in an information model which is stored in the overlay itself. We present a proof-of-concept application and evaluation results regarding the architecture's real-time capabilities. the results indicate that a fully distributed architecture can support real-time sensing in mHealth applications and the support is available as an open source platform, MediaSense. Current work is focused on evaluating scalability in very large scale scenarios using field trials.

关键词： Smart phones Real time systems Peer to peer computing Cognition Hospitals Context Computer architecture

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A Hybrid Wireless Network Approach to Support QoS Data Transmission

A Hybrid Wireless Network Approach to Support QoS Data Trans...

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international conference on Parallel and distributed systems (ICPADS)

作者： Ying-Hong Wang Hung-Jen Mao Chih-Hsiao Tsai Jeang-You Lai Department of Computer Science and Information Engineering Tamkang University Taipei Taiwan

Wireless sensor networks are emerging as a popular research issue and tool for many applications. However, nodes in a sensor network are severely constrained by energy, storage capacity and computing power. In this paper, we propose an integrated network environment (sensor and ad hoc network) with ieee 802.15.4a, ultra-wideband (UWB) and two-tier data dissemination (TTDD) routing protocol. We wish that sensor network could support fast dynamic location-tracking, information gathering and response. And base station use theses information to compute an optimal path for ad hoc mobile devices to offer good QoS level and reliable data transmission according to different requests

关键词： Wireless networks Data communication Wireless sensor networks Capacitive sensors Energy storage Computer networks Ad hoc networks Ultra wideband technology Routing protocols Base stations

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A Hierarchical Authentication Scheme in Wireless sensor Networks

A Hierarchical Authentication Scheme in Wireless Sensor Netw...

引用

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

作者： Bing Wu Department of Mathematics and Computer Science Fayetteville State University Fayetteville NC

ISBN: (纸本)9781479960378

A wireless sensor network (WSN) refers to a group of autonomous sensors capable of collecting environmental conditions such as temperature, humidity, and pressure. In addition, WSNs may be deployed in a risky region where sensor nodes are equipped to track suspicious targets and monitor harmful activities. In such scenarios, security is crucial and challenging. Such applications require top security, such as authentication, confidentiality, and integrity. In this paper, we focus on the authentication service in wireless senor network. Authentication is validity of entities and is considered the first line of defense against malicious attacks. With high security requirements, we assume sensor nodes are equipped with sufficient resources and are capable of performing advanced cryptographic operations. We propose a simple authentication protocol for wireless sensor networks based on distributed clustering and asymmetric cryptographic algorithms.

关键词： Authentication Peer-to-peer computing Protocols Wireless sensor networks Public key

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A distributed flow control for mission-oriented wireless multimedia networks using cooperative communications

A distributed flow control for mission-oriented wireless mul...

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11th international conference on Wireless Communications, Networking and Mobile computing (WiCOM 2015)

作者： Yi Chen Ge Gao Shengbin Liao Huaxiong Yao School of Computer Science Huazhong Normal University Wuhan China School of Computer Science Wuhan University China National Engineering Research Center Huazhong Normal University China

ISBN: (纸本)9781510821279

this paper proposes a novel and efficient distributed flow control for wireless multimedia networks using cooperative communications, based on the Proportional Integral (PI) controllers. the control parameters can be designed to ensure the stability of the control loop in terms of source rate. the distributed explicit rate controller is located at the wireless multimedia sensor source to regulate the transmission rate for mission. We further analyse the theoretical aspects of the proposed algorithm. Simulation results demonstrate the efficiency of the proposed scheme in terms of system stability, fast response, and high efficiency for mission-oriented multimedia systems. Simulation results show that the performance of our scheme is improved more than 10% when compared with other method.

关键词： Cooperative Communication Flow Control Mission-Oriented Stability Wireless Multimedia Networks flow control multimedia network cooperative communication control ring control parameter source rate wireless Communication Research

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A Comprehensive Ontology for Knowledge Representation in the Internet of things

A Comprehensive Ontology for Knowledge Representation in the...

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ieee international conference on Trust, Security and Privacy in computing and Communications (TrustCom)

作者： Wei Wang Suparna De Ralf Toenjes Eike Reetz Klaus Moessner Centre for Communication Systems Research University of Surrey Guildford UK Faculty of Engineering and Computer Science University of Applied Sciences Osnabruck Germany

ISBN: (纸本)9781467321723

Semantic modeling for the Internet of things has become fundamental to resolve the problem of interoperability given the distributed and heterogeneous nature of the "things". Most of the current research has primarily focused on devices and resources modeling while paid less attention on access and utilisation of the information generated by the things. the idea that things are able to expose standard service interfaces coincides with the service oriented computing and more importantly, represents a scalable means for business services and applications that need context awareness and intelligence to access and consume the physical world information. We present the design of a comprehensive description ontology for knowledge representation in the domain of Internet of things and discuss how it can be used to support tasks such as service discovery, testing and dynamic composition.

关键词： Ontologies Quality of service sensor phenomena and characterization Testing Semantics Unified modeling language

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An efficient placement and routing technique for fault-tolerant distributed embedded computing

An efficient placement and routing technique for fault-toler...

引用

ieee international conference on Embedded and Real-Time computing systems and Applications (RTCSA)

作者： R. Jafari F. Dabiri M. Sarrafzadeh Computer Science Department University of California Los Angeles CA USA

this paper presents an efficient technique for placement and routing of sensors/actuators and processing units in a grid network. the driver application that we present is a medical jacket which requires an extremely high level of robustness and fault tolerance. the power consumption of such jacket is another key technological constraint. Our proposed interconnection network is a mesh of wires. A jacket made of fabric and wires would be susceptible to accidental damage via tears. By modeling the tears, we evaluate the probability of having failures on every segment of wires in our mesh interconnection network. then we study two problems of placement and routing in the sensor networks such that the fault tolerance is maximized while the power consumption is minimized. We develop efficient integer linear programming (ILP) formulations to address these problems and perform both placement and routing simultaneously. this ensures that the solution is a lower bound for both problems. We evaluate the effectiveness of our proposed techniques on a variety of benchmarks.

关键词： Routing Fault tolerance Embedded computing Wires Energy consumption Multiprocessor interconnection networks Actuators Robustness Fabrics Integer linear programming

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WASP: a radio geolocation system on highly resource constrained mobile platforms

WASP: a radio geolocation system on highly resource constrai...

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international conference and Workshop on Engineering of Computer-Based systems

作者： Kumar Chhokra T. Bapty J. Scott S. Winberg J. Sztipanovits D. van Rheeden B. Abbott Vanderbilt University USA Southwest Research Institute USA Southwest Research Institute

In recent years, there has been an increased need for surveillance capabilities in both civilian and military arenas. Mobile unmanned sensor fleets have long been envisioned as a tool for acquiring such intelligence. We describe a geolocation system as a payload for unmanned aerial vehicles. In particular, we address the issues that arise in designing an inexpensive, distributed, mobile, RF sensor processing system: low payload cost; power-limited components; real-time constraints; absence of common clocks; and varying environmental conditions. We also target, qualitatively, the tradeoff decisions across the dimensions of accuracy (of time of arrival estimates and the final geolocation), computational effort, physical dimensions, and operational logistics. the final system architecture, algorithms, and accuracy figures are also described.

关键词： Intelligent sensors Payloads Surveillance Unmanned aerial vehicles Radio frequency sensor systems Costs Real time systems Clocks Physics computing

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Effects of IDSs on the WSNs Lifetime: Evidence of the Need of New Approaches

Effects of IDSs on the WSNs Lifetime: Evidence of the Need o...

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ieee international conference on Trust, Security and Privacy in computing and Communications (TrustCom)

作者： Krishna Doddapaneni Enver Ever Orhan Gemikonakli Leonardo Mostarda Alfredo Navarra School of Engineering & Information Sciences Middlesex University London UK Dipartimento Di Informatica University of Perugia Perugia Italy

ISBN: (纸本)9781467321723

A Wireless sensor Network (WSN) consists of spatially distributed autonomous sensors that monitor environmental data such as temperature, humidity, light, speed and sound. WSNs pose new security challenges because of their unattended nature and limited resources. Although prevention measures such as encryption and firewalls have been successfully applied, the attacker can physically access the node and modify it. Intrusion Detection systems (IDSs) are a second line of defence that can be used to mitigate this problem. Building IDSs for WSNs is a new challenge because of the limited resources of the WSN nodes. IDS solutions for sensor networks should try to minimise the use of battery of the sensor nodes in order to prolong the network lifetime. In this paper we analyse different solutions that have been proposed for intrusion detection in wireless sensor networks. More specifically we analyse the impact of popular intrusion detection systems on the life time of the WSNs. Our study is quite general since we consider IDSs that are distributed on the sensor nodes and continuously monitor the networks for evidence of attacks. We also consider IDSs that are event triggered, which means that they require agreement between nodes when a suspicious activity is detected. the agreement is used to detect the attack and isolate the attacker. We analyse the effects of IDSs on battery life. the results show that, popular oral message algorithm of Byzantine generals problem should be considered for small scale WSNs because of the overhead introduced in terms of messages exchanged for decision. We conclude our paper with properties and recommendations for IDSs working for WSNs and some future works.

关键词： Wireless sensor networks Intrusion detection Temperature sensors Ad hoc networks Wireless communication

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Performance of distributed Compressive Sensing Channel Feedback in Multi-User Massive MIMO

Performance of Distributed Compressive Sensing Channel Feedb...

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ieee international conference on Wireless and Mobile computing, Networking and Communications

作者： Khaled S. Hassan Martin Kurras Lars thiele Faculty of Information Engineering and Technology German University in Cairo (GUC) Cairo Egypt Wireless Communications and Networks Fraunhofer Heinrich Hertz Institute Berlin Germany

ISBN: (纸本)9781467377027

Large scale multiple-input multiple-output (MIMO) system is draining attention for its huge spectral efficiency. However, this is only applicable if the base-station is provided with an accurate channel-state information (CSI). In practical cases, the feedback channel is limited, especially when a large antenna array is used making CSI compression mandatory. therefore, compressive sensing (CS) can be applied to massive MIMO systems, where spatial correlation between the antenna array elements is exploited to obtain sparse representations of the downlink channel. Moreover, the correlation among nearby users seeing similar scatterers can be utilized to recover the CSI at the base-station using distributed compressive sensing (DCS) with a limited amount of errors. Our unique link-level simulation shows the suitability of CS and DCS to reduce the amount of channel feedback to less than 37% and still achieves a very low symbol-error ratio (SER) error floor and high per-user capacity.

关键词： MIMO amount errors multiple input multiple output systems BASE STATION Antenna arrays Compressed sensing Array Element feedback channel

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