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美国陆军战术互联网的现状与发展 总被引:1,自引:0,他引:1
王喜焱 《光电对抗与无源干扰》2001,(4):44-47
随着通讯网络技术的迅速发展,军用互联网技术也得到了重大的发展,本文从无线电通讯网络和计算机通讯网络两方面讲述了美国现役战术互联网的情况。 相似文献
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战术互联网是AdHoc网络技术在军事领域的重要应用,广播是战术互联网中基本的信息发布方式,也是AdHoc网络技术研究的一个重要问题。首先把AdHoc网络广播算法分为邻居决定转发和自身决定转发,然后仿真分析几种典型的广播算法;最后根据战术互联网的特点,结合现有的AdHoc网络广播,提出一种新的战术互联网广播协议(TIBP)。仿真结果表明:TIBP在战术互联网环境下具有较高的效率。 相似文献
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战术互联网是互联的战术无线电台的集合,在战术通信方面有着广阔的应用前景。本文阐述了战术互联网的概念和组成;介绍了战术联网的主要装备和业务需求,并阐述了战术互联网的信道接入控制、路由、组网以及信息处理方式。最后,探讨了战术互联网的发展趋势。 相似文献
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战术互联网建模与仿真 总被引:10,自引:0,他引:10
战术互联网(TI-TacticalInternet)是移动通信环境下的战术通信网络,是实现战场前沿态势感知(SA-SituationalAwareness)数据和指挥控制(C2-CommandandControl)数据传输的主要通道,也是战术通信的骨干网络。在简单介绍美军战术互联网系统功能与构成的基础上,重点剖析了战术互联网系统建模与仿真的多种设计方案与实现技术,最后,针对我军未来战术通信系统的仿真研究和应用问题,提出了几点思考和建议。 相似文献
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为了解决战术互联网拓扑模型生成问题,分析了现有的拓扑构建方法的不足,从拓扑模型建立、约束条件、拓扑分析等几方面对战术互联网网络模型进行了研究.通过构建多约束下的节点模型、边模型,进而构建网络拓扑模型,并从节点度、平均路径长度、网络效率等方面对拓扑模型进行了特性分析.仿真结果表明,提出的多约束的战术互联网拓扑模型生成方法能够很好地满足新一代战术互联网的拓扑结构. 相似文献
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分析了战术互联网的体系架构、特点及组成,基于EXata仿真框架引入半实物仿真思想,构建了虚实结合的战术互联网仿真场景,实现了真实信息流在仿真网络中的传输,验证了存在干扰时对网络节点信息传输的影响.仿真结果表明,基于EXata构建的半实物仿真平台可有效模拟战术互联网作战场景,为研究战术互联网网络性能提供了试验平台,提高了... 相似文献
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针对现有的虚拟网络重构算法对物理网络中产生的碎片资源考虑不够周到,导致其对在线虚拟网络映射算法的性能改善不够显著的问题,该文定义了一种网络资源碎片度度量方法,并提出一种碎片感知的安全虚拟网络重构算法。该算法通过周期性考虑物理网络中节点的碎片度,选择出待迁移虚拟节点集合;通过综合考虑物理网络的碎片度减小量和虚拟网络的映射开销减少量,选择出最佳的虚拟节点迁移方案。仿真结果表明,该算法的请求接受率和收益开销比均优于当前的重构算法,特别是在收益开销比方面的优势更加明显。
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Many state-of-the-art wireless sensor networks have been equipped with reprogramming modules, e.g., those for software/firmware
updates. System migration tasks such as software reprogramming, however, will interrupt normal sensing and data processing
operations of a sensor node. Although such tasks are occasionally invoked, the long time of such tasks may disable the network
from detecting critical events, posing a severe threat to many sensitive applications. In this paper, we present the first
formal study on the problem of downtime-free migration. We demonstrate that the downtime can be effectively eliminated, by
partitioning the sensors into subsets, and let them perform migration tasks successively with the rest still performing normal
services. We then present a series of effective algorithms, and further extend our solution to a practical distributed and
localized implementation. The performance of these algorithms have been evaluated through extensive simulations, and the results
demonstrate that our algorithms achieve good balance between the sensing quality and system migration time.
Yangfan Zhou is a PhD student in the Computer Science and Engineering Department at The Chinese University of Hong Kong. He received the B.Sc. (2000) degree in electronics from Peking University and the M.Phil (2005) degree in computer science and engineering from the Chinese University of Hong Kong. He also worked in industrial area as hardware engineer and later software engineer in China from 2000 to 2003. His research interests are in wireless ad hoc and sensor networks. Michael R. Lyu received the B.S. (1981) in electrical engineering from National Taiwan University, the M.S. (1985) in computer engineering from University of California, Santa Barbara, and the Ph.D. (1988) in computer science from University of California, Los Angeles. He is a Professor in the Computer Science and Engineering Department of the Chinese University of Hong Kong. He worked at the Jet Propulsion Laboratory, Bellcore, and Bell Labs; and taught at the University of Iowa. His research interests include software reliability engineering, software fault tolerance, distributed systems, image and video processing, multimedia technologies, and mobile networks. He has published over 200 papers in these areas. He has participated in more than 30 industrial projects, and helped to develop many commercial systems and software tools. Professor Lyu was frequently invited as a keynote or tutorial speaker to conferences and workshops in U.S., Europe, and Asia. He initiated the International Symposium on Software Reliability Engineering (ISSRE), and was Program Chair for ISSRE’1996, Program Co-Chair for WWW10 and SRDS’2005, and General Chair for ISSRE’2001 and PRDC’2005. He also received Best Paper Awards in ISSRE’98 and in ISSRE’2003. He is the editor-in-chief for two book volumes: Software Fault Tolerance (Wiley, 1995), and the Handbook of Software Reliability Engineering (IEEE and McGraw-Hill, 1996). He has been an Associate Editor of IEEE Transactions on Reliability, IEEE Transactions on Knowledge and Data Engineering, and Journal of Information Science and Engineering. Professor Lyu was elected to IEEE Fellow (2004) and AAAS Fellow (2007) for his contributions to software reliability engineering and software fault tolerance. He was also named Croucher Senior Research Fellow in 2008. Jiangchuan Liu received the BEng degree (cum laude) from Tsinghua University, Beijing, China, in 1999, and the PhD degree from The Hong Kong University of Science and Technology in 2003, both in computer science. He was a recipient of Microsoft Research Fellowship (2000), a recipient of Hong Kong Young Scientist Award (2003), and a co-inventor of one European patent and two US patents. He co-authored the Best Student Paper of IWQoS’08. He is currently an Assistant Professor in the School of Computing Science, Simon Fraser University, British Columbia, Canada, and was an Assistant Professor in the Department of Computer Science and Engineering at The Chinese University of Hong Kong from 2003 to 2004. His research interests include multimedia systems and networks, wireless ad hoc and sensor networks, and peer-to-peer and overlay networks. He is an Associate Editor of IEEE Transactions on Multimedia, and an editor of IEEE Communications Surveys and Tutorials. He is a Senior Member of IEEE and a member of Sigma Xi. 相似文献
Jiangchuan LiuEmail: |
Yangfan Zhou is a PhD student in the Computer Science and Engineering Department at The Chinese University of Hong Kong. He received the B.Sc. (2000) degree in electronics from Peking University and the M.Phil (2005) degree in computer science and engineering from the Chinese University of Hong Kong. He also worked in industrial area as hardware engineer and later software engineer in China from 2000 to 2003. His research interests are in wireless ad hoc and sensor networks. Michael R. Lyu received the B.S. (1981) in electrical engineering from National Taiwan University, the M.S. (1985) in computer engineering from University of California, Santa Barbara, and the Ph.D. (1988) in computer science from University of California, Los Angeles. He is a Professor in the Computer Science and Engineering Department of the Chinese University of Hong Kong. He worked at the Jet Propulsion Laboratory, Bellcore, and Bell Labs; and taught at the University of Iowa. His research interests include software reliability engineering, software fault tolerance, distributed systems, image and video processing, multimedia technologies, and mobile networks. He has published over 200 papers in these areas. He has participated in more than 30 industrial projects, and helped to develop many commercial systems and software tools. Professor Lyu was frequently invited as a keynote or tutorial speaker to conferences and workshops in U.S., Europe, and Asia. He initiated the International Symposium on Software Reliability Engineering (ISSRE), and was Program Chair for ISSRE’1996, Program Co-Chair for WWW10 and SRDS’2005, and General Chair for ISSRE’2001 and PRDC’2005. He also received Best Paper Awards in ISSRE’98 and in ISSRE’2003. He is the editor-in-chief for two book volumes: Software Fault Tolerance (Wiley, 1995), and the Handbook of Software Reliability Engineering (IEEE and McGraw-Hill, 1996). He has been an Associate Editor of IEEE Transactions on Reliability, IEEE Transactions on Knowledge and Data Engineering, and Journal of Information Science and Engineering. Professor Lyu was elected to IEEE Fellow (2004) and AAAS Fellow (2007) for his contributions to software reliability engineering and software fault tolerance. He was also named Croucher Senior Research Fellow in 2008. Jiangchuan Liu received the BEng degree (cum laude) from Tsinghua University, Beijing, China, in 1999, and the PhD degree from The Hong Kong University of Science and Technology in 2003, both in computer science. He was a recipient of Microsoft Research Fellowship (2000), a recipient of Hong Kong Young Scientist Award (2003), and a co-inventor of one European patent and two US patents. He co-authored the Best Student Paper of IWQoS’08. He is currently an Assistant Professor in the School of Computing Science, Simon Fraser University, British Columbia, Canada, and was an Assistant Professor in the Department of Computer Science and Engineering at The Chinese University of Hong Kong from 2003 to 2004. His research interests include multimedia systems and networks, wireless ad hoc and sensor networks, and peer-to-peer and overlay networks. He is an Associate Editor of IEEE Transactions on Multimedia, and an editor of IEEE Communications Surveys and Tutorials. He is a Senior Member of IEEE and a member of Sigma Xi. 相似文献
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提高供电的质量,保证其在供电过程中的稳定性以及运行的安全,就需要进行配电网络重构。解决这个问题所涉及的方面非常复杂,需要一系列的非线性优化组合,并且这些组合的优化过程也是一个非常庞大的工程。本文对配电网重构的相关问题进行了介绍,同时对智能优化算法在配电网重构中的相关运用也进行了详细介绍,提出了在对电网进行重构过程中需要注意的一些问题。 相似文献
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Application of Global Dynamic Reconfiguration in Artificial Neural Network System based on Field Programmable Gate Array 总被引:1,自引:1,他引:0
Presented is a global dynamic reconfiguration design of an artificial neural network based on field programmable gate array (FPGA). Discussed are the dynamic reconfiguration principles and methods. Proposed is a global dynamic reconfiguration scheme using Xilinx FPGA and platform flash. Using the revision capabilities of Xilinx XCF32P platform flash, an artificial neural network based on Xilinx XC2V30P Virtex-Ⅱ can be reconfigured dynamically from back propagation (BP) learning algorithms to BP network testing algorithms. The experimental results indicate that the scheme is feasible, and that, using dynamic reconfiguration technology, FPGA resource utilization can be reduced remarkably. 相似文献
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针对战术数据链无线网络典型入侵事件,基于演化算法和神经网络提出了一种基于演化神经网络的入侵检测方法。通过仿真实验和性能对比验证了该方法的有效性,对战术数据链系统的安全设计有一定的指导意义。 相似文献
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在动态局部可重构设计过程中,系统级设计到现场可编程门阵列(FPGA)硬件实现,还需要大量的寄存器传输级(RTL)硬件语言编写,导致设计效率下降的问题。针对该问题,以Xilinx公司最新提出的动态局部重构设计流程———早期获取部分可重构(EAPR)为基础,利用System Generator软件,提出一种动态局部重构的设... 相似文献
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野战地域通信网可靠性的评价方法 总被引:36,自引:1,他引:35
本文针对野战地域通信网网络拓扑复杂并随战场环境发生变化的特点,提出了一种快速评价野战地域通信网可靠性的方法,给出了可靠性定量计算的数学解析式,该方法简单、直观,能反映网络拓扑的可靠性和抗毁性。 相似文献