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Simple Method for Realizing Weil Theorem in Secure ECC Generation

Tsinghua Science and Technology 2017年第5期22卷 511-519页

作者： Feng Hu Chao Wang Huanguo Zhang Jie Wu the Key Laboratory of Specialty Fiber Optics and Optical Access Networks School of Communication and Information EngineeringShanghai University the Department of Computer and Information Sciences Temple University the Key Lab of Aerospace Information Security and Trusted Computing Wuhan University

How to quickly compute the number of points on an Elliptic Curve （EC） has been a longstanding challenge. The computational complexity of the algorithm usually employed makes it highly inefficient. Unlike the general EC, a simple method called the Weil theorem can be used to compute the order of an EC characterized by a small prime number, such as the Kobltiz EC characterized by two. The fifteen secure ECs recommended by the National Institute of Standards and Technology （NIST） Digital Signature Standard contain five Koblitz ECs whose maximum base domain reaches 571 bits. Experimental results show that the computation speed decreases for base domains exceeding 600 bits. In this paper, we propose a simple method that combines the Weil theorem with Pascals triangle, which greatly reduces the computational complexity. We have validated the performance of this method for base fields ranging from 2l^100 to 2^1000. Furthermore, this new method can be generalized to any ECs characterized by any small prime number.

关键词： Elliptic Curves (ECs) Pascal's triangle Weil theorem

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MoMi: Model-based diagnosis middleware for sensor networks

MoMi: Model-based diagnosis middleware for sensor networks

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MidSens'09 - 4th International Workshop on Middleware Tools, Services and Run-Time Support for Sensor networks, Co-located with the 10th ACM/IFIP/USENIX International Middleware Conference

作者： De Jong, Adriaan Woehrle, Matthias Langendoen, Koen Embedded Software Group Delft University of Technology Netherlands Computer Engineering and Networks Lab. ETH Zurich Switzerland

ISBN: (纸本)9781605588513

Numerous deployments of Wireless Sensor networks (WSNs) have shown that intricate problems are introduced by deploying sensor nodes in an unknown and dynamic environment. Consequently, a vital part of a WSN deployment is the supervision of the sensor nodes and detection of abnormalities in their operation. Previous approaches have devised hand-crafted solutions to detect application-specific problems. This work proposes a generic middleware component, named MoMi, to detect such problems in a systematic way. Given a description of normal system behavior MoMi uses a Model-Based Diagnosis (MBD) framework to present the likely causes of system abnormalities to an administrator. This paper demonstrates a proof of concept implementation of MBD on sensor nodes and presents examples of its applicability for typical WSN applications. Copyright 2009 ACM.

关键词： Sensor nodes

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On the potential of software rejuvenation for long-running sensor network deployments

On the potential of software rejuvenation for long-running s...

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2010 ICSE Workshop on Software engineering for Sensor Network Applications, SESENA 2010, in Conjunction with the 32nd ACM/IEEE International Conference on Software engineering, ICSE 2010

作者： Woehrle, Matthias Meier, Andreas Langendoen, Koen Computer Engineering and Networks Lab. ETH Zurich Switzerland Embedded Software Group Delft University of Technology Netherlands

ISBN: (纸本)9781605589695

Many sensor network systems encounter considerable problems after deployment despite extensive simulation and testing during the development. A fundamental issue is unforeseen problems that rarely occur, which makes them hard to reproduce. This work focuses on a class of problems that occur due to so-called software aging: The classical software engineering approach to handle software aging effects is software rejuvenation, i. e., the proactive reset of software components. In this positioning paper we discuss whether software rejuvenation can be applied to resource scarce sensor nodes, which are tightly coupled distributed system. We detail why and how software rejuvenation techniques are applicable to sensor networks and presents the basic building blocks required. © 2010 ACM.

关键词： Software testing

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A comparison of Wireless Fidelity (Wi-Fi) fingerprinting techniques

A comparison of Wireless Fidelity (Wi-Fi) fingerprinting tec...

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2011 International Conference on ICT Convergence, ICTC 2011

作者： Del Mundo, Lersan B. Ansay, Rafael Lean D. Festin, Cedric Angelo M. Ocampo, Roel M. Networks and Distributed Systems Lab. Department of Computer Science University of the Philippines Diliman Quezon City 1101 Philippines Computer Networks Lab. Electrical and Electronics Engineering Institute University of the Philippines Diliman Quezon City 1101 Philippines

ISBN: (纸本)9781457712678

Among several techniques proposed for indoor positioning using IEEE 802.11 Wireless Fidelity (Wi-Fi) based networks, those that rely on fingerprinting have been demonstrated to outperform those based on lateration, angulation, and cell of origin in terms of accuracy. We compare and evaluate three Wi-Fi fingerprinting techniques that use the K-Nearest Neighbor (k-NN), Naive Bayes Classifier (NBC) and Support Vector Machine (SVM) algorithms. Our experiments show that SVM-based fingerprinting outperformed both k-NN and NBC-based fingerprinting, achieving accuracies of 2 meters or better within our testbed. © 2011 IEEE.

关键词： Indoor positioning systems

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Chamaeleon - Exploiting multiple channels to mitigate interference

Chamaeleon - Exploiting multiple channels to mitigate interf...

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International Conference on Networked Sensing Systems

作者： Iyer, Venkatraman Woehrle, Matthias Langendoen, Koen Embedded Software Group Delft University of Technology Netherlands Computer Engineering and Networks Lab. ETH Zurich Switzerland

ISBN: (纸本)9781424479108

Due to their embedding into an unknown environment, wireless sensor networks are susceptible to adverse environmental conditions. A prime example is external interference, typically caused by 802.11, electric devices or co-located sensor networks, which can drastically influence communication. However, radios on sensor nodes provide multiple channels, which can help to alleviate interference problems on a particular channel. In this work, we introduce Chamaeleon, a novel lean, cross-layer protocol extension that helps to overcome external interference problems. Chamaeleon switches an affected set of nodes to a new channel based on key network parameters e.g., packet loss and channel backoffs. Initial simulation-based experiments show that Chamaeleon effectively handles the jamming of isolated channels. © 2010 IEEE.

关键词： Sensor nodes

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Global Optimal Output Regulation of Partially Linear Systems via Robust Adaptive Dynamic Programming

Global Optimal Output Regulation of Partially Linear Systems...

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作者： Gao, Weinan Jiang, Zhong-Ping Control and Networks Lab Department of Electrical and Computer Engineering Polytechnic School of Engineering New York University BrooklynNY11201 United States

A non-model-based robust adaptive dynamic programming (RADP) approach is developed to solve the global optimal output regulation problem (GOORP) of partially linear systems with nonlinear dynamic uncertainties. By converting the output regulation problem into a global robust optimal stabilization problem, a robust optimal controller is designed by means of the RADP for the transformed system. Nonlinear small-gain theory is applied to conclude the global asymptotic stability for the closed-loop system and thus solves the original GOORP. Simulation results illustrate the effectiveness of the proposed methodology. © 2015

关键词： Linear systems

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Optimization of Cube Storage Warehouse Scheduling Using Genetic Algorithms 19

Optimization of Cube Storage Warehouse Scheduling Using Gene...

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19th IEEE International Conference on Automation Science and engineering, CASE 2023

作者： Ha, Won Yong Jiang, Zhong-Ping Tandon School of Engineering New York University The Control and Networks Lab Department of Electrical and Computer Engineering BrooklynNY11201 United States

ISBN: (纸本)9798350320695

In this paper, a new scheduling model is presented to speed up the logistics processing in an automatic cube storage warehouse. Automated guided vehicles (AGV) are used to move all items in the warehouse according to the computer's instructions. The tasks to be performed by the AGV are optimally distributed using Genetic Algorithms (GA). The goal of our research is to optimize order scheduling in automatic warehouses to reduce human resources and lower the cost of logistics. The proposed GA's fitness function reflects removing the stacked bin, a cube storage warehouse characteristic, and getting the designated bin. Through extensive computer simulations, it is shown that the higher the generation of the GA we design, the lower the logistics processing time. As compared with other meta-heuristic optimization algorithms, our proposed GA algorithm demonstrates a maximum of 21% reduction in delivery time. © 2023 IEEE.

关键词： Genetic algorithms

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A QoS-aware routing algorithm based on ant-cluster in wireless multimedia sensor networks

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Science China(Information Sciences) 2014年第10期57卷 77-92页

作者： HUANG HaiPing CAO Xiao WANG RuChuan WEN YongGang College of Computer Nanjing University of Posts and Telecommunications Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Key Lab of Broadband Wireless Communication and Sensor Network Technology of Ministry of Education Nanjing University of Posts and Telecommunications School of Computer Engineering Nanyang Technological University

QoS-aware routing algorithm is important in wireless multimedia sensor networks. This paper formulates a generalized QoS-aware routing model on the basis of multiple routing metrics and priorities of packets. We first introduce a 2D plain-based routing algorithm IPACR which improves the standard ant colony algorithm by optimizing the initial distribution of artificial pheromone in order to accelerate the algorithm convergence rate. Then a clustering-based routing algorithm ICACR is presented which can be well applied in a large scale network. ICACR is a variation of IPACR because it can be suitable for clustering cases to satisfy the larger scale situations. Both the numerical algorithm performance analysis and simulation of IPACR and ICACR are given. The results show that ICACR outperforms IPACR in terms of both network lifetime and QoS-aware routing metrics in large scale wireless multimedia sensor networks. Moreover, the simulation based on the real video traces shows that by extending the multi-path to ICACR for different priorities of video frames better performance can be achieved.

关键词： ant colony clustering-based multi-path QoS-aware routing algorithm wireless multimedia sensor networks

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Spectrum sensing algorithms for cognitive MIMO channels 15

Spectrum sensing algorithms for cognitive MIMO channels

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15th International Multi-Conference on Systems, Signals and Devices, SSD 2018

作者： Souid, Imen Chikha, Haithem Ben Attia, Rabah University of Carthage SERCOM Lab Tunisia Polytechnic School Tunisia Aljouf University College of Computer and Information Sciences Department of Computer and Networks Engineering Saudi Arabia

ISBN: (纸本)9781538653050

The algorithms used in spectrum sensing have an important impact on the detection performance. Thus, in this paper, by exploiting the mathematical structure and physical properties of the signal's eigenvalues under correlated multiple-input multiple-output (MIMO) channels in cognitive radio (CR) networks, we propose two new spectrum sensing algorithms. Firstly, by applying the Torgerson theory of matrix majorization, we propose a new algorithm which is especially suitable for correlated CR-MIMO channels as in practical circumstances: Maximum-geometric mean eigenvalues detector (MGM). Besides, we derive the expressions for both false alarm probability and threshold corresponding to MGM. Secondly, by applying the Gershgorin theorem on MGM, we propose a low-complexity detector based on MGM which reduces the computation complexity especially for high dimensional matrices. Simulation results show the effectiveness of the proposed algorithms, compared to other existing sensing methods even in low signal-to-noise ratios (SNR). © 2018 IEEE.

关键词： Cognitive radio

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Adaptive dynamic programming for finite-horizon optimal control of linear time-varying discrete-time systems

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Control Theory and Technology 2019年第1期17卷 73-84页

作者： Bo PANG Tao BIAN Zhong-Ping JIANG Control and Networks (CAN) Lab Department of Electrical and Computer Engineering Tandon School of Engineering New York University Brooklyn NY 11201 U.S.A. Bank of America Merrill Lynch One Bryant Park New York NY 70036 U.S.A.

This paper studies data-driven learning-based methods for the finite-horizon optimal control of linear time-varying discretetime systems. First, a novel finite-horizon Policy Iteration (PI) method for linear time-varying discrete-time systems is presented. Its connections with existing in finite-horizon PI methods are discussed. Then, both data-drive n off-policy PI and Value Iteration (VI) algorithms are derived to find approximate optimal controllers when the system dynamics is completely unknown. Under mild conditions, the proposed data-driven off-policy algorithms converge to the optimal solution. Finally, the effectiveness and feasibility of the developed methods are validated by a practical example of spacecraft attitude control.

关键词： Optimal control time-varying system adaptive dynamic programming policy iteration (PI) value iteration(VI)

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