通信技术对作战样式发展的影响

不管是古代的简易信号通信还是现代以信息技术为基础的通信网络,通信技术的发展对战争形态的发展变化和战争胜负的影响都是至关重要的。本文主要介绍通信技术对战争形态发展的影响,初步探究通信技术在联合作战样式的形成与发展中起到的作用,窥探未来一体化联合作战样式发展的特点和趋势,分析我国建设信息化军队面临的机遇和挑战。     

计算机网络通信技术应用前景

信息技术的应用与推广对现代经济发展具有不可替代的作用,尤其是在当前通信技术快速增长的过程中,各种类型的活动对信息技术的依赖都比较高,在此基础上形成了具有针对性的信息交流平台。随着技术水平的提高,未来计算机网络通信技术呈现出高速化、小型化、核心技术智能化的发展趋势,以智能信息为代表的未来计算机网络通信技术的应用必将在现代社会发展中起到积极的作用,未来的计算机技术的发展的在减少人机之间的沟通的障碍过程中会进一步发挥积极作用,进而拉近人机之间的时空距离。     

现代通信与信息技术在电力移动指挥中的应用研究

随着信息化、网络化的不断深入,通信与信息技术的应用领域更加广泛,逐渐融入到电力移动指挥系统的各个方面。本文主要分析了现行电力移动指挥系统中通信与信息技术应用的实际状况,以及通信工具、通信结构在应急系统使用中的不同作用,并简单阐述了电力移动指挥系统中未来通信信息技术的未来前景和发展趋势,希望为后期电力移动指挥的发展有所助益。     

论未来通信技术和广播电视的融合

伴随社会科技的迅猛发展,我们迎来了信息时代,人们获取信息的途径、手段和习惯也随之不断地发生着变换。近几年,基于信息技术而快速发展的通信技术,也在广播电视中被广泛的应用。面对当前通信技术与广播电视的发展现状,并结合未来时间内通信技术的发展趋势,如何做好二者间的有效融合,成为了当前的研究重点。文章以未来通信技术的发展趋势为依据,就其与广播电视的融合进行简单分析。     

2000年以后世界通信环境及邮政通信展望

本文从世界人口、经济及社会的发展趋势,概述了世界进入信息化社会时的通信环境及通信技术。从电信的发展与传统邮政的动向出发,展示出计算机及通信网络技术在信息技术中的核心作用。未来的邮政将与电信融合,到下一世纪电子邮政将与信息通信、电话、电报及数据业务一起纳入ISDN的业务范围,发展成为统一的、理想的多功能、智能化通信网。     

指挥信息系统中通信分系统未来发展探讨

现代战争已进入信息化时代,指挥信息系统不仅拉开了信息化战争的帷幕,并主导着战争的整个过程,而获取的信息优势已成为决定战争胜负的关键,指挥信息系统中的通信分系统是整个系统运转的中枢。传统的通信系统由于局限性,已不能满足新式指挥信息系统的需求,文章对未来通信分系统应具备的能力及实现提出了设想,以便更好的满足未来发展的需要。     

军事通信抗干扰技术的发展现状及趋势

未来的战争是复杂电磁环境下的信息化联合作战,军事通信系统面临着日益复杂的干扰威胁。为了对抗各种通信干扰,夺取信息优势,世界军事强国纷纷研究和发展多种军事通信抗干扰技术。首先介绍了军事通信抗干扰技术的概念、原理、途径、特点和类别等基本知识,接着对正在发展的军事通信抗干扰技术进行了详细阐述,最后对军事通信抗干扰技术的发展趋势进行了预测和展望。     

有线传输技术在通信工程中的应用及发展趋势

随着我国信息化社会建设进程的不断加快,通信工程对于国家经济和社会发展具有特别的重要性。当前通信技术有很多形式,其中有线传输技术作为传统的通信技术,在我国通信工程技术中占有很大的比例。随着通信工程领域的技术发展,未来通信工程中的有线传输技术也必将朝着商业化、经济化、多元化发展。本文通过分析有线传输技术,探讨了其当前的应用情况及未来的发展前景。     

2020年前后我国面临的主要威胁和对抗目标分析

未来战争是信息化的战争，信息作战将成为主要的作战形式，不但贯穿战争的始终。而且主导战争的进程。分析了2020年前后我国面临的主要军事威胁。我军信息作战的目标和世界军事电子信息技术的发展趋势。     

论短波电台在人防指挥通信系统中的应用

在信息技术不断发展的背景下,高科技信息化战争使人防指挥通信面临着严峻的挑战,对人防指挥通信工作提出了更高要求,促使人防部门必须提高人防通信工作的标准。为此,地方人防指挥通信部门需要结合信息化战争的特点,加强人防通信事业的发展,而短波通信作为人防指挥通信系统中的一种重要通信方式,具有其他通信方式不可替代的优势,大力发展短波电台对完善人防指挥通信系统建设具有非常重要的意义。     

Book Reviews

Book reviewed in this article:
Tobacco War: Inside the California Battles . By Stanton A. Glantz and Edith D. Balbach.
The Art of Facilitating Participation: Releasing the Power of Grassroots Communication . Edited by Shirley A. White.
Technology and Scholarly Communication . Edited by Richard Ekman and Richard E. Quandt.
Technoromanticism: Digital Narrative, Holism, and the Romance of the Real . By Richard Coyne.
The Anglo-American Media Connection . By Jeremy Tunstall and David Machin.
Hollywood Planet: Global Media and the Competitive Advantage of Narrative Transparency . By Scott Robert Olson.
The Information Society in Europe: Work and Life in an Age of Globalization . Edited by Ken Ducatel, Juliet Webster, & Werner Herrmann.
Tabloid Tales: Global Debates Over Media Standards . Edited by Colin Sparks and John Tulloch.
Exporting Communication Technology to Developing Countries: Sociocultural, Economic and Educational Factors . By Emmanuel K. Ngwainmbi.
In the Event: Reading Journalism, Reading Theory . By Deborah Esch.
Capital Moves: RCA's Seventy-Year Quest for Cheap Labor . By Jefferson Cowie.
Against Race: Imagining Political Culture Beyond the Color Line . By Paul Gilroy.
Image Makers: Advertising, Public Relations and the Ethos of Advocacy . By Robert Jackal and Janice Hirota.
Snap to Grid: A User's Guide to Digital Arts, Media, and Cultures . By Peter Lunenfeld.
The Digital Dialectic: New Essays on New Media . Edited by Peter Lunenfeld.
net_condition: art and global media Edited by Peter Weibel and Timothy Druckrey.
The Internet and Society . By James Slevin.
Democracy in the Digital Age: Challenges to Political Life in Cyberspace . By Anthony G. Wilhelm.     

Books

Book reviewed in this article: Keeping America Uninformed: Government Secrecy in the 1980's by Donna A. Demac with a preface by Ben H. Bagdikian. The Language of Advertising by Torben Vestergaard and Kim Schrøder. The BBC: The First Fifty Years by Asa Briggs. Creating Rosie the Riveter: Class, Gender, and Propaganda during World War II by Maureen Honey. The Real Terror Network: Terrorism in Fact and Propaganda by Edward S. Herman. Television Myth and the American Mind by Hal Himmelstein. TV, Science, and Kids: Teaching Our Children to Question edited by Kim Hays. Communications for National Development: Lessons from Experience by Robert D. Telecommunications Access and Public Policy edited by Alan Baughcum and Gerald R. Faulhaber. Information Technology and a New International Order edited by Jörg Becker. Transnational Data Flows in the Information Age by Cees J. Hamelink. Interpreting Television: Current Research Perspectives edited by Willard D. Rowland, Jr., and Bruce Watkins. Códigos deontológicos de los medios de comunicación: Prensa, Radio, Televisión, Cine, Públicidad y Relaciónes Publicas [Ethical codes of mass media] by Porfirio Barroso. Communication and Persuasion by G. H. Jamieson. The Structure of Television by Peter Gould, Jeffrey H. Johnson, and Graham R. Processing the News: How People Tame the Information Tide by Doris A. Information, Ideology and Communication: The New Nations’Perspectives on an Intellectual Revolution by Arnold Gibbons. Many Voices, One World (The MacBride Report) (abridged edition) by Sean MacBride et al. The Imperative of Responsibility: In Search of an Ethics for the Technological Age by Hans Jonas. Studies in Mass Communication and Technology edited by Sari Thomas. Cultural Indicators: An International Symposium edited by Gabriele Melischek, Karl Erik Rosengren, and James Stappers. Politics and Television Re-Viewed by Gladys Engel Lang and Kurt Lang.     

The Diffuse project - single sourcing IT standards information

The European Commission's Information Society Technologies (IST) programme created the Diffuse project to provide a single value-added entry point to up-to-date reference and guidance information on available and emerging standards and specifications. This neutral reporting on standards and specifications aims to facilitate the electronic exchange of information. Diffuse supports the IST's Key Action II (New Methods of Work and Electronic Commerce) and Key Action III (Multimedia Content and Tools), which are two of the European Commission's main work areas for its IST programme. While emphasizing the needs of research and technology development communities, the project has a broader perspective of serving the information requirements of the whole of industry, and of the public sector in general. Diffuse builds on the accomplishments of the European Commission's Open Information Interchange initiative, which concluded in December 1999. The Finnish Information Technology Development Centre (TIEKE) leads the project. The other partners, IC Focus (electronic commerce specialists) and The SGML Centre (structured information management specialists), are both based in the UK     

Books

Book reviews in this article
Taking turns
Face-to-Face Interaction: Research, Methods and Theory by Starkey Duncan, Jr. and Donald W. Fiske.
Inside CBS
CBS: Reflections in a Bloodshot Eye by Robert Metz.
Clive: Inside the Record Business by Clive Davis with James Willwerth.
Conceptual Basis
Educational Telecommunications by Donald Wood and Donald Wylie.
Needs more focus
The Most Important Art: East European Film After 1945 by Mira Liehm and Antonin J. Liehm.
Foreign language teaching
The Challenge of Communication edited by Gilbert A. Jarvis.
Irreverent, radical
Investigative Social Research: Individual and Team Field Research by Jack D. Douglas.
Speaking and judgment
Speech Style and Social Evaluation by Howard Giles and Peter E. Powesland.
Unraveling the mysteries
Premises for Propaganda: The United States Information Agency's Operating Assumptions in the Cold War by Leo Bogart.
Intellectual srnorgasbord
Explorations in Interpersonal Communication edited by Gerald R. Miller.
"Self-defining species"
Explorations in Language and Meaning: Towards a Semantic Anthropology by Malcolm Crick.
"Period piece"
The View from Language: Selected Essays 1948–1974 by C. F. Hockett.
Going beyond the data
Growing Up to Be Violent: A Longitudinal Study of the Development of Aggression by Monroe M. Lefkowitz, Leonard D. Eron, Leopold O. Walder, and L. Rowell Huesmann.
Sophisticated treatment
Communicating and Organizing by Rich, ard V. Farace, Peter R. Monge, and Hamish M. Russell.     

Optimization and Performance Analysis of Zero Forcing Decision Feedback Detector for MIMO Block-Fading Channels with Per-Antenna Power Control

In multiple-input multiple-output (MIMO) antenna systems, the zero forcing decision feedback detector (ZF-DFD) is used to recover transmit signals. In this paper, we propose a per-antenna power control (PAPC) scheme based on ZF-DFD for MIMO block-fading channels. The optimal power controlled ZF-DFD can minimize the block error rate (BLER) and maximize the lower bound of the channel’s free distance at high signal-to-noise ratio (SNR) region subject to a power constraint. Additionally, the optimal power controlled ZF-DFD can achieve this BLER performance without any ordering operation at the receiver. The performance analysis among the conventional ZF-DFD without feedback, the optimal power controlled ZF-DFD with power feedback, and the ZF-DFD with full channel state information feedback shows that the optimal ZF-DFD achieves a tradeoff between performance and feedback overhead. We compare the bit error rate (BER) and BLER performance of the optimal ZF-DFD with other detectors without power feedback by simulation. In simulations, the execution times required by these detectors are also reported to compare their complexity. It comes straight that the optimal power controlled ZF-DFD proposed in this paper can achieve good performance with small feedback overhead and have low complexity. Kun Zhao was born in Hefei, China, on 9 October 1979. He received his BS and MS degrees from University of Science and Technology of China (USTC), in 2001 and 2003, all in Electrical Engineering. He is now a Ph.D. candidate at USTC.His research interests are in the area of spread spectrum and CDMA communications, radio resource management in mobile communications, space-time signal processing and multiuser MIMO. Ling Qiu received her BS degree from Southeast University, P. R. China, in 1990. She also received MS and Ph.D. degrees from University of Science and Technology of China (USTC), in 1997 and 1999, all in Electrical Engineering.From 1990 to 1994, she was an engineer in the Institute of Nanjing Electronic Technology. In 1999, she joined the Department of Electronic and Engineering and Information Science, USTC as a lecturer. Since 2002, she has been an Associate Professor. She is a coauthor of two books and over 40 conference/journal papers. Her research interests are in the area of wireless communications, spread spectrum and CDMA communications, wireless access networks and protocols, radio resource management in mobile communications, space-time signal processing and multiuser MIMO. Jinkang Zhu is a professor of Department of Electronic Engineering & Information Science of University of Science and Technology of China (USTC). Now he is director of Personal Communication Network and Spread Spectrum Lab. of USTC, Chair of the Academic Committee of School of Information Science & Technology of USTC, Vice-Chiar of the Academic Committee of USTC.He was Permanent V-President of School of Information Science & Technology of USTC, Chairman of PCN Experts Group of Communication Project of National R & D on High-Technology Programme of China, Member of Information Technology Expert Group of the Chinese Academy of Sciences, Member (Representation of China Mainland) of Technical Forum on Wireless Communications of Asia Pacific Region, Member of Technical Advisory Committee of IEEE VTC'99 Fall, Member of Technical Program Committee of IEEE VTC'2000, Member of Technical Program Committee of SCI'2001.His research area is Wireless and Mobile Communications, CDMA and Spread Spectrum Communications, Signal Process of Communications, and Wireless Networks. He got two awards of Ministry of Science & Technology of China, three awards of Chinese Academy of Science. He published five books and 100 papers, where synchronous CDMA method proposed is used in TD-SCDMA Standard of 3G as basic technology.     

Performance evolution of trellis coding in Multiple Input Multiple Output communication systems—A review

In recent years, it has been realized that the Multiple Input Multiple Output (MIMO) communication system is inevitable in accelerating the evolution of high data rate applications. Also the latest research in Information and Communication Technology has told that considerable gains in capacity of wireless communication are feasible in MIMO systems. MIMO with Space Time Trellis Code (STTC) offers both diversity gain and coding gain. This paper discusses the evolutional variants of Space Time Trellis Code developed over a decade. The performance of New Trellis code for STTC, STTC for 4-PSK, Space Frequency Trellis code (SFTC), Space Time Bit Trellis Code, and Silver STTC have been studied and discussed. STTC with Trellis Coded Modulation creates a bandwidth efficient system with coding gain.     

Performance Analysis of Distributed-Antenna Communication Systems Using Beam-Hopping Under Strong Directional Interference

In order to efficiently mitigate the interference of directional jammers, we investigate a beam-hopping (BH) communication scheme, which includes slow beam-hopping (SBH) and fast beam-hopping (FBH) schemes. In the BH communication scheme, only one pair of the beams is used for transmission and it hops from one to the next according to an assigned BH pattern. In this contribution, a range of expressions in terms of the symbol error rate (SER) performance of the BH and conventional single-beam (SB) schemes have been derived, when both the downlink and uplink are considered. The SER performance of the BH scheme is compared with that of the SB scheme, for M-ary phase-shift keying (MPSK) and M-ary quadrature amplitude modulation (MQAM) signals under composite log normal shadowing/Nakagami-m fading channels. Our analysis and results show that the proposed BH scheme is suitable for communications, when several distributed antenna arrays are available around a mobile.Honglin Hu received his Ph.D in Communications and Information System from the University of Science and Technology of China, 2004. Currently he is with Future Radio, Siemens AG Communications in Munich, Germany. In Siemens, he makes researches mainly on SDMA and OFDM techniques, also on the cross-layer design and optimization for future wireless communication systems. Dr. Hu is a member of IEEE.Jinkang Zhu is a professor of Department of Electronic Engineering & Information Science of University of Science and Technology of China (USTC). Now he is director of Personal Communication Network and Spread Spectrum Lab. of USTC, Chair of the Academic Committee of School of Information Science & Technology of USTC, Vice-Chair of the Academic Committee of USTC.He was Permanent V-President of School of Information Science & Technology of USTC, Chairman of PCN Experts Group of Communication Project of National R&D on High-Technology Programme of China, Member of Information Technology Expert Group of the Chinese Academy of Sciences, Member (Representation of China Mainland) of Technical Forum on Wireless Communications of Asia Pacific Region, Member of Technical Advisory Committee of IEEE VTC99 Fall, Member of Technical Program Committee of IEEE VTC2000, Member of Technical Program Committee of SCI2001.His research area is Wireless and Mobile Communications, CDMA and Spread Spectrum Communications, Signal Process of Communications, and Wireless Networks. He got two awards of Ministry of Science & Technology of China, three awards of Chinese Academy of Science. He published five books and 100 papers, where synchronous CDMA method proposed is used in TD-SCDMA Standard of 3G as basic technology.     

DATA BYPASSING ARCHITECTURE AND CIRCUIT DESIGN FOR 32-BIT DIGITAL SIGNAL PROCESSOR

This paper presents a design method of ByPassing Unit（BPU） in 32-bit Digital Signal Processor（DSP）-MD32. MD32 is realized in 0.18 μm technology, 1.8V and 200 MHz working clock. It focuses on the Reduced Instruction Set Computer（RISC） architecture and DSP computation capability thoroughly, extends DSP with various addressing modes in a customized DSP pipeline stage architecture. The paper also discusses the architecture and circuit design of bypassing logic to fit MD32 architecture. The parallel execution of BPU with instruction decode in architecture level is applied to reduce time delay. The optimization of circuit that serial select with priority is analyzed in detail, and the result shows that about half of time delay is reduced after this optimization. Examples show that BPU is useful for improving the DSP＇s performance. The forwarding logic in MD32 realizes 8 data channels feedback and meets the working clock limit.     

Book Reviews

Book reviewed in this article:
Science of Coercion: Communication Research and Psychological Warfare 1945-1960 By Christopher Simpson.
On Social Research and Its Language By Paul F. Lazarsfeld. Raymond Boudon (Ed.)
American Folklore and the Mass Media By Linda Dégh
Blasphemy by David Lawton By David Lawton
The Imperial Archive: Knowledge and the Fantasy of Empire . By Thomas Richards
The War of Desire and Technology at the Close of the Mechanical Age . By Allucquére Rosanne Stone
Hyper/text/Theory / By George P. Landow (Ed.)
The Electronic Eye: The Rise of Surveillance Society By David Lyon
Accounting as Social and Institutional Practice . By Anthony G. Hopwood and Peter Miller (Eds.)     

Exploring Temporal Analytics in Fog-Cloud Architecture for Smart Office HealthCare

Mobile Networks and Applications - Ever since the boost realized in Information and Communication Technology (ICT), market is flooded with high-end multi-tasking devices, presenting a real-time...