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Corrigendum to “Fast and scalab.e lock methods for video coding on many-core architecture” [J. Vis. Commun. 25 (7) (2014) 1758–1762]

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Journal of Visual communication and Image Representation 2015年 26卷 350-350页

作者： Weizhi Xu Hui Yu Dianjie Lu Fenglong Song Da Wang Xiaochun Ye Songwei Pei Dongrui Fan Hongtao Xie Institute of Microelectronics Tsinghua University Beijing China State Key Laboratory of Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing China Key Lab. of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing China School of Information Science and Engineering Shandong Normal University Jinan China Department of Computer Science and Technology Beijing University of Chemical Technology Beijing China Institute of Information Engineering Chinese Academy of Sciences National Engineering Laboratory for Information Security Technologies Beijing China

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26th Annual Computational Neuroscience Meeting (CNS*2017): Part 3 Antwerp, Belgium. 15-20 July 2017 Abstracts

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BMC NEUROSCIENCE 2017年第SUPPL 1期18卷 95-176页

作者： [Anonymous] Department of Neuroscience Yale University New Haven CT 06520 USA Department Physiology & Pharmacology SUNY Downstate Brooklyn NY 11203 USA NYU School of Engineering 6 MetroTech Center Brooklyn NY 11201 USA Departament de Matemàtica Aplicada Universitat Politècnica de Catalunya Barcelona 08028 Spain Institut de Neurobiologie de la Méditerrannée (INMED) INSERM UMR901 Aix-Marseille Univ Marseille France Center of Neural Science New York University New York NY USA Aix-Marseille Univ INSERM INS Inst Neurosci Syst Marseille France Laboratoire de Physique Théorique et Modélisation CNRS UMR 8089 Université de Cergy-Pontoise 95300 Cergy-Pontoise Cedex France Department of Mathematics and Computer Science ENSAT Abdelmalek Essaadi’s University Tangier Morocco Laboratory of Natural Computation Department of Information and Electrical Engineering and Applied Mathematics University of Salerno 84084 Fisciano SA Italy Department of Medicine University of Salerno 84083 Lancusi SA Italy Dipartimento di Fisica Università degli Studi Aldo Moro Bari and INFN Sezione Di Bari Italy Data Analysis Department Ghent University Ghent Belgium Coma Science Group University of Liège Liège Belgium Cruces Hospital and Ikerbasque Research Center Bilbao Spain BIOtech Department of Industrial Engineering University of Trento and IRCS-PAT FBK 38010 Trento Italy Department of Data Analysis Ghent University Ghent 9000 Belgium The Wellcome Trust Centre for Neuroimaging University College London London WC1N 3BG UK Department of Electronic Engineering NED University of Engineering and Technology Karachi Pakistan Blue Brain Project École Polytechnique Fédérale de Lausanne Lausanne Switzerland Departement of Mathematics Swansea University Swansea Wales UK Laboratory for Topology and Neuroscience at the Brain Mind Institute École polytechnique fédérale de Lausanne Lausanne Switzerland Institute of Mathematics University of Aberdeen Aberdeen Scotland UK Department of Integrativ

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RE-AODV: Improved AODV routing protocol for repairing efficiency

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Journal of Networks 2013年第11期8卷 2467-2472页

作者： Li, Xu Feng, Qijing Li, Shijie Ding, Haiyang School of Electronic and Information Engineering State Key Lab. of Rail Traffic Control and Safety Beijing Jiaotong University Beijing China School of Electronic and Information Engineering Beijing Jiaotong University Beijing China College of Information Engineering Beijing Institute of Graphic Communication National Beijing 102600 China Information Security Center Beijing University of Posts and Telecommunications Beijing 100876 China

Mobile Ad Hoc Network (MANET) is a self-organized, quickly configurable network, which does not have fixed infrastructure. Mobility is one of the most characteristic in MANET, but it may cause the failure of a valid link. There are two repair mechanisms-local repair and source repair in Ad hoc on demand distance vector protocol (AODV). The source repair mechanisms will bring higher overhead and packet loss ratio. Local Repair is an effective way to rebuild a route to destination, but its performance decline when the destination is unreachable from local repair node. This paper proposes an improved repair mechanism (RE-AODV) based on the local repair scheme, which distinguishes different route request messages and route reply messages with Local_Repair and Dst_Answer flags, and process them with different priorities. The simulation results demonstrate that the network delivery ratio can be significantly improved by using the proposed repair scheme. © 2013 ACADEMY PUBLISHER.

关键词： Repair

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Energy-efficient contact probing in opportunistic mobile networks

Energy-efficient contact probing in opportunistic mobile net...

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2013 IEEE 2013 22nd International Conference on Computer communication and Networks, ICCCN 2013

作者： Zhou, Huan Zheng, Huanyang Wu, Jie Chen, Jiming State Key Lab. of Industrial Control Technology Zhejiang University Hangzhou 310027 China Department of Computer and Information Sciences Temple University United States

ISBN: (纸本)9781467357746

In Opportunistic Mobile Networks (OppNets), data is opportunistically exchanged between nodes who encounter each other. In order to enable such data exchanges, nodes in the network have to probe their environment continually, so as to discover neighbor nodes. This can be an extremely energy-consuming process. If nodes probe very frequently, they will consume a lot of energy, and might be energy inefficient. On the other hand, infrequent contact probing might cause nodes to miss many of their contacts, and thus opportunities to exchange data are lost. Therefore, there exists a trade-off between energy efficiency and the contact opportunities in OppNets. In this paper, in order to investigate this trade-off, we first propose a model to quantify the detecting probability in OppNets, using the Random WayPoint (RWP) model. Then, extensive simulations are conducted to validate the correctness of our proposed model. Finally, based on the proposed model, we analyze the trade-off between energy efficiency and the total number of effective contacts under different situations. Our results show that the good trade-off points are obviously different when the speed of nodes is different. Moreover, the detecting probability increases as the speed of nodes decreases, while the total number of effective contacts increases as the speed of nodes increases. © 2013 IEEE.

关键词： Energy utilization

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False data attacks judgment based on consistency loop model in wireless sensor networks

False data attacks judgment based on consistency loop model ...

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4th International Conference on Advances in Swarm Intelligence, ICSI 2013

作者： Li, Ping Sun, Limin Yang, Wu Fang, Qing Xie, Jinyang Ma, Kui Computer and Communication Engineering Institute Changsha University of Science and Technology Hunan 410114 China State Key Lab. of Information Security Institute of Information Engineering Chinese Academy of Sciences Beijing 100093 China Wuxi Internet of Things Industry Research Institute Jiangsu 214000 China

ISBN: (纸本)9783642387142

Wireless sensor networks are usually deployed in complex environments;an attacker can easily inject false data by capturing nodes, causing serious consequences. The main work of this paper is as follows. Firstly, the logical loop model is created based on the estimated value of the source events of every wireless sensor network node. Secondly, each node based on RSSI find neighbor nodes by establishing consistency loop model. Finally, the malicious node is determined by comparing the similarities and differences of the nodes between the two loop models. The simulation shows that this mechanism is effective to inhibit the infringement of malicious nodes to the network, and improve network security performance. © 2013 Springer-Verlag Berlin Heidelberg.

关键词： Network security

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An study of indoor localization algorithm based on imperfect signal coverage in wireless networks

An study of indoor localization algorithm based on imperfect...

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4th International Conference on Advances in Swarm Intelligence, ICSI 2013

作者： Li, Ping Sun, Limin Fang, Qing Xie, Jinyang Yang, Wu Ma, Kui Computer and Communication Engineering Institute Changsha University of Science and Technology Hunan 410114 China State Key Lab. of Information Security Institute of Information Engineering Chinese Academy of Sciences Beijing 100093 China Wuxi Internet of Things Industry Research Institute Jiangsu 214000 China

ISBN: (纸本)9783642387142

Existing localization algorithms didn't consider the important factor of the antenna measuring angles. And most wireless indoor localization algorithms require a site survey process which is time-consuming and lab.r-intensive. This paper presents a featured region localization algorithm without site survey and discusses the measured angle in different intervals. According to the relationship among the fingerprints sets of the same angle interval, our proposed algorithm is used to find the featured points within the region. Regions of points are determined by calculating Euclidean distance between the points and APs (Access Points). Experiments are conducted in an 8m by 8m lab.ratory, and results show that this algorithm has superior performance compared with existing algorithms. © 2013 Springer-Verlag Berlin Heidelberg.

关键词： Antennas

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Improvement on Ahn et al.'s RSA P-homomorphic signature scheme

Improvement on Ahn et al.'s RSA P-homomorphic signature sche...

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8th International ICST Conference on security and Privacy in communication Networks, SecureComm 2012

作者： Wang, Zhiwei College of Computer Nanjing University of Posts and Telecommunications Nanjing Jiangsu 210003 China State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences Beijing 100190 China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing Jiangsu 210003 China Key Lab. of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications Ministry of Education Jiangsu Province Nanjing Jiangsu 210003 China

ISBN: (纸本)9783642368820

P-homomorphic signature is a general framework for computing on authenticated data, which is recently proposed by Ahn et al. With P-homomorphic signature, any third party can derive a signature on the object message m′ from a signature of m, if m′ and m satisfy P(m,m′) = 1 for some predicate P which denotes the authenticatable relationship between m′ and m. Ahn et al. proposed a RSA P-homomorphic signature scheme by using a RSA accumulator, which is very efficient in space. However, the computational cost of verification and derivation is very heavy. We present an improved P-homomorphic signature scheme based on factoring problem. In our construction, the time efficiency of both verification and derivation are much better than Ahn's scheme. © 2013 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering.

关键词： Authentication

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Direct multi-hop time synchronization with constructive interference

Direct multi-hop time synchronization with constructive inte...

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11th ACM/IEEE Conference on information Processing in Sensing Networks, IPSN'12

作者： Wang, Yin Pan, Gaofeng Huang, Zhiyu MOE Key Lab. for Information System Security School of Software TNLIST China Science and Technology on Communication Information Security Control Laboratory China Institute of Software Chinese Academy of Sciences China

ISBN: (纸本)9781450312271

Multi-hop time synchronization in wireless sensor networks (WSNs) is often time-consuming and error-prone due to random time-stamp delays for MAC layer access and unstable clocks of intermediate nodes. Constructive interference (CI), a recently discovered physical layer phenomenon, allows multiple nodes transmit and forward an identical packet simultaneously. By leveraging CI, we propose direct multi-hop (DMH) time synchronization by directly utilizing the time-stamps from the sink node instead of intermediate nodes, which avoids the error caused by the unstable clock of intermediate nodes. DMH doesn't need decode the flooding time synchronization beacons. Moreover, DMH explores the linear regression technique in CI based time synchronization to counterbalance the clock drifts due to clock skews. © 2012 ACM.

关键词： Synchronization

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A resource distribution algorithm based on node factors of transmission for ad hoc network

A resource distribution algorithm based on node factors of t...

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2012 2nd International Conference on Business Computing and Global Informatization, BCGIN 2012

作者： Xu, Xiaofeng Wei, Guohua Science and Technology on Communication Information Security Control Lab. JiaXing China China Electronic Technology Group Corporation No. 36 Institute JiaXing China

ISBN: (纸本)9780769548548

Wireless communication network has such features as limited bandwidth, changeful channel and dynamic topology, etc. Ad hoc network has lots of difficulties in accessing control, bandwidth distribution, resource assign and congestion control. Therefore, a wireless resource distributing algorithm based on communication transmission performance factors is proposed in the paper. The algorithm makes quantitative and qualitative analysis for influencing factors of transmission performance, as a result, node resource distribution "relative unfairness" is introduced to realize resource re-distribution while network resource is changing. At the same time, in order to ensure fairness of data transmission and timeliness of network packets, transmitting priority levels for each data packets are established based on latency time and its original priority level in the node. The simulation results show that the algorithm can ensure fairness and timeliness of network transmission, as well as improve ad hoc network resource integrated utilization efficiency. © 2012 IEEE.

关键词： Bandwidth

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Energy-efficient Contact Probing in Opportunistic Mobile Networks

Energy-efficient Contact Probing in Opportunistic Mobile Net...

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International Conference on Computer communications and Networks

作者： Huan Zhou Huanyang Zheng Jie Wu Jiming Chen State Key Lab. of Industrial Control Technology Zhejiang University Hangzhou China Department of Computer and Information Sciences Temple University USA

In Opportunistic Mobile Networks (OppNets), data is opportunistically exchanged between nodes who encounter each other. In order to enable such data exchanges, nodes in the network have to probe their environment continually, so as to discover neighbor nodes. This can be an extremely energy-consuming process. If nodes probe very frequently, they will consume a lot of energy, and might be energy inefficient. On the other hand, infrequent contact probing might cause nodes to miss many of their contacts, and thus opportunities to exchange data are lost. Therefore, there exists a trade-off between energy efficiency and the contact opportunities in OppNets. In this paper, in order to investigate this trade-off, we first propose a model to quantify the detecting probability in OppNets, using the Random WayPoint (RWP) model. Then, extensive simulations are conducted to validate the correctness of our proposed model. Finally, based on the proposed model, we analyze the tradeoff between energy efficiency and the total number of effective contacts under different situations. Our results show that the good trade-off points are obviously different when the speed of nodes is different. Moreover, the detecting probability increases as the speed of nodes decreases, while the total number of effective contacts increases as the speed of nodes increases.

关键词： Opportunistic Mobile Networks Energy consumption Contact probing Random WayPoint model

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