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Secure localization and location verification inwireless sensor networks

Secure localization and location verification inwireless sen...

引用

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

作者： Yingpei Zeng Jiannong Cao Jue Hong Li Xie State Key Laboratory of Novel Software Technology Nanjing University Nanjing China Department of Computing Hong Kong Polytechnic University Hong Kong China

sensors' locations are important to many wireless sensor networks (WSNs). When WSNs are deployed in hostile environments, two issues about sensors' locations need to be considered. First, the attackers may attack the localization process to make the estimated locations incorrect. Second, since sensor nodes may be compromised, the base station may not trust the locations reported by sensor nodes. Researchers have proposed two techniques, secure localization and location verification, to solve the two issues respectively. In this paper we describe the attacks against localization and location verification, and survey the state of research of both secure localization and location verification.

关键词： Wireless sensor networks Base stations Event detection Time measurement Laboratories Computer networks Costs Volcanoes Monitoring Surveillance

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Hop-Count Based Node-to-Anchor Distance Estimation in Wireless sensor Networks

Hop-Count Based Node-to-Anchor Distance Estimation in Wirele...

引用

Consumer Communications and Networking conference, CCNC ieee

作者： Di Ma Bang Wang Hock Beng Lim Meng Joo Er Intelligent Systems Center Nanyang Technological University Singapore

Localization is one of the most important research issues in wireless sensor networks (WSNs). Hop-count based localization has been proposed as a cost-effective alternative to the expensive hardware-based localization schemes. In this paper, we propose a new method to estimate distances between anchors and nodes based on hop-count information. Localization is then achieved using the estimated distances. Simulation results show that the performance of our proposed algorithm is much better than that of the DV-hop algorithm in terms of the node-to- anchor distance estimation and localization accuracy, and the improvement is proportional to the node density.

关键词： Wireless sensor networks Iterative algorithms distributed computing Phase estimation Partitioning algorithms Erbium Intelligent systems Intelligent networks Intelligent sensors Hardware

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distributed Rate Allocation for Network-coded systems

Distributed Rate Allocation for Network-coded Systems

引用

ieee Annual Communications Society sensor, Mesh and Ad Hoc Communications and Networks SECON Workshops

作者： Amin Jafarian Sang Hyun Lee Sriram Vishwanath Christina Fragouli Department of Electrical and Computer Engineering University of Texas Austin Austin TX USA School of Computer and Communication Sciences Ecole Polytechnique Federale de Lausanne Lausanne Switzerland

this paper addresses the problem of distributed rate allocation for a class of multicast networks employing linear network coding. the goal is to minimize the cost (for example, the sum rates allocated to each link in the network) while satisfying a multicast rate requirement for each destination in the network. In essence, this paper aims to achieve network capacity while ensuring that the cost of operation (equivalently, the rate allocated per link in the network) is minimal. this paper uses a belief propagation framework to obtain a distributed algorithm for the rate allocation problem. Simulation results are presented to demonstrate the convergence of this algorithm to the optimal rate allocation solution.

关键词： Costs Network coding Belief propagation Wireless communication Network topology Base stations Computer networks distributed computing Electronic mail distributed algorithms

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Adaptive and distributed scheduling in heterogeneous MIMO-based ad hoc networks

Adaptive and distributed scheduling in heterogeneous MIMO-ba...

引用

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

作者： Shan Chu Xin Wang Department of Electrical and Computer Engineering Stony Brook University Stony Brook NY USA

Multiple-input and multiple-output (MIMO) technique is considered as one of the most promising wireless technologies that can significantly improve transmission capacity and reliability. Many emerging mobile wireless applications require peer-to-peer transmissions over an ad hoc network, where the nodes often have different number of antennas, and the channel condition and network topology vary over time. It is important and challenging to develop efficient schemes to distributively coordinate transmission resource sharing among a heterogeneous group of nodes over an infrastructure-free mobile ad hoc network. In this work, we propose a holistic distributed scheduling algorithm that can adaptively select different transmission strategies based on the node types and channel conditions to effectively relieve the bottleneck effect caused by nodes with smaller antenna arrays, and avoid transmission failure due to violation of channel constraint. the algorithm also takes advantage of channel information to opportunistically schedule cooperative spatial multiplexed transmissions between nodes and provide special transmission support for higher priority nodes with weak channels, so that the data rate of the network can be maximized while user transmission quality requirement is supported. the performance of our algorithm is studied through extensive simulations and the results demonstrate that our algorithm is very effective in handling node heterogeneity and channel constraint, and can significantly increase the throughput while reducing the transmission delay.

关键词： Adaptive scheduling Ad hoc networks Peer to peer computing Transmitting antennas Scheduling algorithm Adaptive arrays MIMO Mobile antennas Network topology Resource management

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A force-driven evolutionary approach for multi-objective 3D differentiated sensor network deployment

A force-driven evolutionary approach for multi-objective 3D ...

引用

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

作者： Liang-Che Wei Chih-Wei Kang Jian-Hung Chen Department of Computer Science and Information Engineering Chung Hua University Hsinchu Taiwan

this paper describes a novel force-driven evolutionary approach for solving multi-objective 3D deployment problems in differentiated wireless sensor networks (WSNs). WSN is a wireless network consisting of spatially distributed autonomous sensors to monitor physical or environmental conditions. Deciding the location of sensor to be deployed on a terrain with the consideration of different criteria is an important issue for the design of wireless sensor network. A multi-objective genetic algorithm with a force-driven method is proposed to solve 3D differentiated WSN deployment problems with the objectives of the coverage of sensors, satisfaction of detection levels, and energy conservation. the preliminary experimental results demonstrated that the proposed approach is capable of obtaining a set of non-dominated solutions for multi-objective 3D differentiated WSN deployment problems.

关键词： Wireless sensor networks sensor phenomena and characterization Condition monitoring Genetic algorithms Energy conservation Terrain factors Underwater tracking Energy resources Event detection Search methods

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Optimum Power Allocation for distributed Antenna systems with Large-scale Fading-only Feedback

Optimum Power Allocation for Distributed Antenna Systems wit...

引用

6th international conference on Information Technology - New Generations (ITNG 2009)

作者： Lim, Dongho Choi, Kwonhue Liu, Huaping Yeungnam Univ Taegu South Korea Oregon State Univ Corvallis OR 97331 USA

ISBN: (纸本)9781424437702

We propose an optimum power allocation scheme for distributed antenna systems (DAS) in time-varying Rayleigh and Ricean fading channels. In the conventional power allocation schemes for DAS, channel state information (CSI) for feedback includes the fast small-scale fading. this causes two practical problems. First, tracking fast fading requires considerable extra bandwidth and processing, which becomes even larger as the number of the distributed antennas increases. Secondly, there is non-negligible power control latency due to the high Doppler of small-scale fading and the feedback loop delay. In this paper, we consider a DAS system which determines the transmission power at each distributed base stations (antennas) only based on the slowly varying large-scale fading excluding the fast small-scale fading and we derive the optimum power allocation (PA) rule for minimum BER under total power constraint. In case of even small variation in fast fading during feedback loop delay, the conventional optimum PA scheme, which includes fast small-scale fading in CS! feedback, degrades significantly and the proposed scheme achieves much lower bit error rates. Even in the case with no latency, the proposed scheme loses only about 1dB SNR compared to the optimum scheme, which includes fast fading feedback. Finally, though the proposed power allocation formula is derived assuming Rayleigh fading, we show that it can be employed to Ricean fading channels with a small line-of-sight (LOS) component with a negligible degradation.

关键词： DAS Optimum Power Allocation Large-scale fading Time-varying fading

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Coordinated Search with a Swarm of UAVs

Coordinated Search with a Swarm of UAVs

引用

ieee Annual Communications Society sensor, Mesh and Ad Hoc Communications and Networks SECON Workshops

作者： Sonia Waharte Niki Trigoni Simon Julier Computing Laboratory University of Oxford Oxford UK Department of Computer Science University College London London UK

Search is a fundamental task for wilderness search and rescue that can greatly benefit from the use of a swarm of autonomous UAVs to survey the environment. the benefits are maximised if the UAVs coordinate their search activities with one another. In this poster, we present our preliminary work on developing coordination strategies for multiple UAVs. It is based on a distributed, grid-based probabilistic environmental model. We discuss the practicalities of the search task, present a simplified mathematical model of the environment and sensors, and present some preliminary simulation-based results. these clearly illustrate, even in a highly simplified case, the great benefits of coordinated search.

关键词： Unmanned aerial vehicles Cameras sensor systems Payloads Mathematical model Control systems Helicopters Navigation Surveillance Educational institutions

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A new group key management scheme based on DMST for Wireless sensor Networks

A new group key management scheme based on DMST for Wireless...

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

作者： YingZhi Zeng Yan Xia JinShu Su School of Computer National University of Defense Technology ChangSha Hunan China School of Computer and Communication Hunan University ChangSha Hunan China

Communication via self-organization is a practical and most common model for wireless sensor network. Its security, efficiency and cost and corresponding key management are one of the key research topics on WSN security. this paper proposes a group key management scheme for WSN based on an original self-organized structure, grid-loop. the group which we called grid-loop is constructed on distributed minimum spanning tree. Our group key management scheme has many advantages over cluster-based scheme. the analysis and comparison demonstrates its feasibility, efficiency and security for key establishment and maintenance in wireless sensor networks.

关键词： Wireless sensor networks Data security sensor phenomena and characterization Computer network management Costs Public key cryptography Relays Network topology Technology management Computer networks

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Performance impact of and protocol interdependencies of ieee 802.15.4 security mechanisms

Performance impact of and protocol interdependencies of IEEE...

引用

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

作者： Feng Chen Xiaolong Yin Reinhard German Falko Dressler Industry Automation Division Siemens AG Germany Department of Computer Science University of Erlangen Germany

the use of wireless technology is continuously gaining interest in industrial automation. With the standardization of the ieee 802.15.4 protocol, low-power sensor network protocols have been introduced in this field. Recently, we investigated the real-time communication capabilities of this protocol. this study is now extended by incorporating the security mechanisms as provided by the protocol standard. In contrast to other papers, which studied the effectiveness of these security techniques, we are interested in whether the real-time capabilities are affected by encryption and message authentication and to which extend. Based on extensive simulations, we investigated the interdependency of protocol parameters and available security options. the results can be used for optimally selecting such parameters according to the quality of service requirements of the application scenario.

关键词： Data security Automation Wireless sensor networks Cryptography Network topology Peer to peer computing Wireless application protocol Computer industry Quality of service Costs

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Fast, Seamless Rekeying In Wireless sensor Networks

Fast, Seamless Rekeying In Wireless Sensor Networks

引用

international conference on distributed computing systems Workshop

作者： Subir Biswas Md Mahbubul Haque Saeed Rashwand Jelena Misic Department of Computer Science University of Manitoba Winnipeg MAN Canada

We extend the probabilistic key-based approach for wireless sensor networks concerning the slow rekeying and path key reestablishment processes. By introducing a novel, energy efficient, distributed, and faster scheme, we attempt to replace the existing ordinary rekeying method of probabilistic key management scheme through a deterministic algorithm that works on both the base station and on each communicating pair of sensor nodes. the node predetermines the backup link key for a future key revocation and switches to the backup key when needed without further interrupting the base station or the key server. this scheme assures high level of security in rekeying operation, and at the same time reduces the rekeying cost very significantly.

关键词： Wireless sensor networks Base stations Data security Communication system control distributed computing conferences Computer science Energy efficiency Energy management Switches

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