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Asia-Pacific network Operations and Management Symposium (APNOMS)

作者： Chia-Wei Tseng Sheue-Ji Chen Yao-Tsung Yang Li-Der Chou Ce-Kuen Shieh Sheng-Wei Huang Dept. of Computer Science and Information Engineering National Central University Taoyuan Taiwan Broadband Network Laboratory Chunghwa Telecom Laboratories Taoyuan Taiwan Narional Center for High-performance Computing Hsinchu Taiwan Dept. of Electrical Engineering National Cheng Kung University Tainan Taiwan

ISBN: (纸本)9781479957415

IPv6 is a technology that provides enormous address space and end-to-end communication, features that are required in the context of the device automation integration for future network. The transition to IPv6 holds the future of the internet infrastructure. Software-defined networking (SDN) defines a new concept for computer networks that can separate and provide abstract elements of network devices. IPv6 SDN has the potential to revolutionize the network design, construct and operate networks to achieve more efficient business network agility. In this paper, we will discuss the main architectures of SDN and illustrate how IPv6 can be deployed and integrated in SDN technologies using OpenFlow mechanisms. We will also discuss the IPv6 impact on link performance and deployment scenarios.

关键词： computer architecture Switches IP networks Internet Broadband communication Performance evaluation security

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Resource allocation and power control scheme for interference avoidance in an LTE-advanced cellular networks with device-to-device communication

International Journal of Control and Automation

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International Journal of Control and Automation 2013年第1期6卷 181-190页

作者： Kim, Tae-Sub Lee, Kwang-Hyung Ryu, Seungwan Cho, Choong-Ho Dept. of Computer and Information Science Korea University Chungnam Korea Republic of Dept. of Information Systems Chung-Ang University Gyeonggi Korea Republic of Dept. of Bio and Brain Engineering KAIST Daejeon Korea Republic of

In this paper, we propose a resource allocation and Tx power control scheme, called resource allocation and power control (RAPC) in an LTE-Advanced device-to-device (D2D) network. In the proposed scheme, the macro base station (mBS) and D2D senders (D2DSs) service macro user equipment (mUEs) and D2D receivers (D2DRs) use the different frequency bands and Tx power chosen as D2D links' locations in inner and outer zones to reduce interference substantially. We analyze and compare the proposed scheme and random resource allocation (RRA) scheme with fractional frequency reuse (FFR) systems in terms of the system throughput for DL and outage probability according to the number of D2D user's (D2DR) traffic density. Simulation results show that the RAPC scheme has better performance than the random resource allocation (RRA) scheme performance in terms of the system throughput and outage probability for mUEs and D2DRs.

关键词： Resource allocation

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OpenNet: A simulator for software-defined wireless local area network

OpenNet: A simulator for software-defined wireless local are...

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IEEE Conference on Wireless Communications and networking

作者： Min-Cheng Chan Chien Chen Jun-Xian Huang Ted Kuo Li-Hsing Yen Chien-Chao Tseng Dept. Computer Science National Chiao Tung University Hsinchu Taiwan R.O.C. Global Strategy Office D-Link Systems Inc. Santa Clara California U.S.A Dept. Computer Science and Information Engineering National University of Kaohsiung Kaohsiung Taiwan R.O.C

ISBN: (纸本)9781479930845

This study is motivated by a plan to install a software-defined wireless local area network (SDWLAN) on campus, which possesses a desired property that both data flow and device behaviors can be software-definable. Because the installation involves hundreds of access points, we must conduct simulations beforehand to verify the design and scalability of the target system. However, existing SDN simulator like Mininet does not support modeling of wireless channel and mobility. On the other hand, common network simulator like ns-3 only has limited support for software-defined controllers and does not fully implement handover process. We thus develop OpenNet, which connects Mininet to ns3 to enjoy both Mininet's advantage of controller compatibility and ns-3's ability in the wireless/mobility modeling. OpenNet also complements ns-3 by adding probe mechanism, which is missing in the current ns-3 implementation. Our simulation result demonstrates the effectiveness of OpenNet.

关键词： Handover Wireless communication IEEE 802.11 Standards Probes Signal to noise ratio Mobile nodes

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Design and implementation of the network electronic identity management system

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2nd International Conference on Opto-Electronics engineering and Materials Research, OEMR 2013

作者： Zou, Xiang Chen, Bing The 3rd research institute of ministry of public security Key laboratory of information network security Ministry of Public Security Shanghai China Dept. of computer engineering Tongji University Shanghai China

ISBN: (纸本)9783037857731

With the prompt evolution of Internet, network identity management is getting more and more basilica. Personal network electronic identity associated in reality has been the significant and urgent task when online life becomes real. So this paper designs the network electronic identity management system architecture, and discusses the key technology of the system implementation including electronic identity generation and verification of electronic identity, and electronic identity state transition. The network electronic identity management system also has been primary implemented and achieved good effects in actual applications. © (2013) Trans Tech Publications, Switzerland.

关键词： Authentication

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A study of vulnerabilities of wireless sensor network

A study of vulnerabilities of wireless sensor network

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作者： Lee, Young-Keun Lee, Malrey Hwang, Suchul Jeong, Gisung Department of Orthopedic Surgery Dason Orthopaedic Clinic Deock Jin Gu InhuDong Jeonju561-756 Korea Republic of Center for Advanced Image and Information Technology School of Electronics and Information Engineering ChonBuk National University 664-14 1Ga Deokjin-Dong Jeonju Chon Buk561-756 Korea Republic of Dept. of Computer Systems and Engineering Inha Technical College 100INHA-RO Nam-Gu Inchon402-752 Korea Republic of Department of Fire Service Administration WonKwang University 460 Iksandae-ro Iksan Jeonbuk570-749 Korea Republic of

The low computing power of sensors and especially their limited energy are obstacles to the deployment of advanced techniques, and many of the researchers are still searching for better solutions, which can accommodate security, would meld lifetime and a good latency of sensors. We have to remember that they are not the only secure solution in wireless sensor networks (WSNs). The level of security and the vulnerability of a wireless sensors network depend on the application that we have to deploy. We suggest a few techniques in this paper. In future work, we may research to prolong the lifetime of the battery in the WSN by applying a solar mate in order to provide backup to the energy of power supply when it comes to drain. Copyright © 2014 Inderscience Enterprises Ltd.

关键词： Wireless sensor networks

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Trustworthy selection of cloud providers based on security and privacy requirements: Justifying trust assumptions

Trustworthy selection of cloud providers based on security a...

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10th International Conference on Trust, Privacy and security in Digital Business, TrustBus 2013

作者： Pavlidis, Michalis Mouratidis, Haralambos Kalloniatis, Christos Islam, Shareeful Gritzalis, Stefanos School of Architecture Computing and Engineering University of East London United Kingdom Cultural Informatics Laboratory Dept. of Cultural Technology and Communication University of the Aegean Greece Laboratory of Information and Communication Systems Security Dept. of Information and Communications Systems Engineering University of the Aegean Greece

ISBN: (纸本)9783642403422

Cloud computing is a new paradigm with a promising potential. However, issues of security, privacy, and trust raise concerns and discourage its adoption. In previous work we presented a framework for the selection of appropriate cloud provider based on security and privacy requirements criteria. However, the adoption of cloud includes release of control over valuable assets, which constitutes trust in the cloud provider of paramount importance. In this paper we extend the framework by incorporating trust and control concepts in its language and adding a new activity to properly identify and reason about trust assumptions during the selection of appropriate cloud provider. Also, the CASE tool was extended to support the new activity. A case study is used to illustrate the usefulness of our approach. © 2013 Springer-Verlag.

关键词： Trusted computing

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Expressing Best Practices in (Risk) Analysis and Testing of Safety-Critical systems Using Patterns

Expressing Best Practices in (Risk) Analysis and Testing of ...

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IEEE International Conference on Software Reliability engineering Workshops (ISSRE Wksp)

作者： Wolfgang Herzner Sven Sieverding Omar Kacimi Eckard Böde Thomas Bauer Brian Nielsen Safety & Security Department AIT Austrian Institute of Technology Vienna Austria Transp. Dept. OFFIS - Inst. for Inf. Technol. Oldenburg Germany Transportation Department OFFIS - Institute for Information Technology Oldenburg Germany Dep. of Embedded Systems Quality Assurance Fraunhofer IESE Kaiserslautern Germany Department of Computer Science Aalborg University Denmark

The continuing pervasion of our society with safety-critical cyber-physical systems not only demands for adequate (risk) analysis, testing and verification techniques, it also generates growing experience on their use, which can be considered as important as the tools themselves for their efficient use. This paper introduces workflow patterns to describe such best practices in a systematic way that efficiently represents this knowledge, and also provides a way to relate different patterns, making them easier to identify and use, and cover as wide a range of experiences as possible. The value of the approach is demonstrated using some pattern examples from a collection developed in the Artemis-project MBAT. Finally, the paper presents a wiki-based approach for developing and maintaining the pattern collection.

关键词： Safety Analytical models information services Electronic publishing Internet Best practices Testing

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Structured coprime factorizations description of linear and time-invariant networks

Structured coprime factorizations description of linear and ...

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52nd IEEE Conference on Decision and Control, CDC 2013

作者： SabǍu, Şerban OarǍ, Cristian Warnick, Sean Jadbabaie, Ali Electrical and Computer Engineering Dept. Stevens Institute of Technology United States Faculty of Automatic Control Dept. University Politehnica Bucharest Romania Faculty of Computer Science Department Information and Decision Algorithms Laboratories Brigham Young University United States Faculty of Electrical and Systems Engineering Dept. University of Pennsylvannia United States

ISBN: (纸本)9781467357173

In this paper we study state-space realizations of Linear and Time-Invariant (LTI) systems. Motivated by biochemical reaction networks, Gonçalves and Warnick have recently introduced the notion of a Dynamical Structure Functions (DSF), a particular factorization of the system's transfer function matrix that elucidates the interconnection structure in dependencies between manifest variables. We build onto this work by showing an intrinsic connection between a DSF and certain sparse left coprime factorizations. By establishing this link, we provide an interesting systems theoretic interpretation of sparsity patterns of coprime factors. In particular we show how the sparsity of these coprime factors allows for a given LTI system to be implemented as a network of LTI sub-systems. We examine possible applications in distributed control such as the design of a LTI controller that can be implemented over a network with a pre-specified topology. ©2013 IEEE.

关键词： Factorization

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A framework for crowd-sourced data collection and context-aware services in Hajj and Umrah

A framework for crowd-sourced data collection and context-aw...

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ACS/IEEE International Conference on computer systems and Applications

作者： Akhlaq Ahmad Md. Abdur Rahman Faizan Ur Rehman Ahmed Lbath Imad Afyouni Abdelmajid Khelil Syed Osama Hussain Bilal Sadiq Mohamed Ridza Wahiddin College of Engineering and Islamic Architecture Umm Al Qura University Makkah Saudi Arabia Kulliyyah of Information and Communication Technology International Islamic University Malaysia College of Computer and Information Systems Umm Al-Qura University Makkah Saudi Arabia Science and Technology Unit Umm Al-Qura University Makkah Saudi Arabia Dept. of Computer Science University of Grenoble Alpes France Umm Al-Qura University Makkah SA TU Darmstadt Germany

We propose a context aware framework that offers a set of cloud-based services to support a very large Hajj and Umrah crowd by capturing their contexts using smartphones. The proposed framework captures the individual's context, provides a set of adapted services, and allows being in touch with a subset of one's community of interest. We leverage the spatiotemporal sensory data captured by our framework to define users' contexts for optimized services. Our proposed framework is also envisioned to assist the Hajj and Umrah authorities to (1) improve Hajj & Umrah documentation, (2) improve Hajj organization through better understanding of pilgrims' (individual and crowd) spatial and temporal behavior and needs, and (3) protect pilgrims' environment through environmental monitoring. In particular, the developed methods, techniques, and algorithms will support the pilgrimage quality of experience. We have tested our system through end-user subjects and due to apply for the upcoming Hajj events. We present our implementation details and the general impression of end users about our system.

关键词： Context Smart phones Social network services Communities Context-aware services Temperature sensors

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Efficient public key cryptosystem resilient to key leakage chosen ciphertext attacks 1

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Cryptographers' Track at the RSA Conference 2013, CT-RSA 2013

作者： Liu, Shengli Weng, Jian Zhao, Yunlei Dept. of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China Department of Computer Science Emergency Technology Research Center of Risk Evaluation and Prewarning on Public Network Security Jinan University China Software School Fudan University Shanghai 201203 China State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences Beijing 100093 China Shanghai Key Laboratory of Scalable Computing and Systems Shanghai China

ISBN: (数字)9783642360954

ISBN: (纸本)9783642360947

Leakage-resilient public key encryption (PKE) schemes are designed to resist "memory attacks", i.e., the adversary recovers the cryptographic key in the memory adaptively, but subject to constraint that the total amount of leaked information about the key is bounded by some parameter λ. Among all the IND-CCA2 leakage-resilient PKE proposals, the leakage-resilient version of the Cramer-Shoup cryptosystem (CS-PKE), referred to as the KL-CS-PKE scheme proposed by Naor and Segev in Crypto09, is the most practical one. But, the key leakage parameter λ and plaintext length m of KL-CS-PKE are subject to λ + m ≤ log q - ω(log κ), where κ is security parameter and q is the prime order of the group on which the scheme is based. Such a dependence between λ and m is undesirable. For example, when λ (resp., m) approaches to log q, m (resp., λ) approaches to 0. In this paper, we designed a new variant of CS-PKE that is resilient to key leakage chosen ciphertext attacks. Our proposal is λ ≤ log q - ω(log κ) leakage-resilient, and the leakage parameter λ is independent of the plaintext space that has the constant size q (exactly the same as that in CS-PKE). The performance of our proposal is almost as efficient as the original CS-PKE. As far as we know, this is the first leakage-resilient CS-type cryptosystem whose plaintext length is independent of the key leakage parameter, and is also the most efficient IND-CCA2 PKE scheme resilient to up to log q - ω(log κ) leakage. © 2013 Springer-Verlag.

关键词： Public key cryptography

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