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W-CDMA: Mobile Communications System
The remarkable progress in information technology (IT) since the late 1990s continues to facilitate faster communications, broadband access and lower communication costs in the information and communications sector. Consequently, communications has penetrated not only the business scene but also every aspect in personal life, to the extent of dramatically changing people’s lifestyles. The widespread use of the Internet, which appeared in the...
426 p dtu 20/11/2012 189 3
Từ khóa: Mobile Communications System, thông tin liên lạc, broadband access, information communications, thông tin truyền thông, thông tin viễn thông
Signal processing for mobile communications
Signal processing (SP) is a key research area in mobile communications. The recent years have known a real explosion in research addressing different aspects of mobile communications signal processing. This area is continuously expanding with emerging applications and services such as interactive multimedia and Internet. SP has to meet the new challenges presented to future mobile communication systems such as very low bit error rates, very...
812 p dtu 20/11/2012 212 4
Từ khóa: Signal processing, mobile communications, xử lý tín hiệu, truyền thông di động, communication systems, thông tin liên lạc
Radio-Frequency and Microwave Communication Circuits: Analysis and Design
Wireless technology has been growing tremendously, with new applications reported almost every day. Besides the traditional applications in communication, such as radio and television, RF and microwaves are being used in cordless phones, cellular communication, local raea networks, and personal communication systems.
588 p dtu 15/11/2012 237 3
Từ khóa: Radio-Frequency, Communication Circuits, Wireless technology, communication systems, tần số vô tuyến, công nghệ không dây, kỹ thuật vô tuyến
Principles of Communication Systems Simulation with Wireless Applications
This book is a result of the recent rapid advances in two related technologies: communications and computers. Over the past few decades, communication systems have increased in complexity to the point where system design and performance analysis can no longer be conducted without a significant level of computer support. Many of the communication systems of fifty years ago were either power or noise limited. A significant degrading effect in...
800 p dtu 15/11/2012 233 3
Từ khóa: Communication Systems, Wireless Applications, system design, thiết kế thông tin, hệ thống thông tin, kỹ thuật thông tin
Phased array antennas consist of multiple stationary antenna elements, which are fed coherently and use variable phase or time-delay control at each element to scan a beam to given angles in space. Variable amplitude control is sometimes also provided for pattern shaping. Arrays are sometimes used in place of fixed aperture antennas (reflectors, lenses), because the multiplicity of elements allows more precise control of the radiation pattern,...
515 p dtu 15/11/2012 244 2
Từ khóa: Phased Array Antenna, amplitude control, kiểm soát biên độ, scanned electronically, quét điện tử, communications system, thông số kỹ thuật
Modern receiver front-ends Systems, Circuits, and Integration
In recent years, the research and developments in the area of RF and microwave technologies have progressed significantly due to the growing demand for applicability in wireless communication technologies. Starting from 1992, wireless communication technologies have become quite mature. In the modern era of electronic developments, design of wireless handsets is an example of integration of many diverse skill sets. Classical books in the areas...
238 p dtu 15/11/2012 222 2
Từ khóa: Systems Circuits, wireless communication technologies, wireless handsets, thiết kế mạch, công nghệ thiết kế, kỹ thuật thiết kế
Introduction to 3G Mobile Communications
The third generation (3G) mobile communication system is the next big thing in the world of mobile telecommunications. The first generation included analog mobile phones [e.g., Total Access Communications Systems (TACS), Nordic Mobile Telephone (NMT), and Advanced Mobile Phone Service (AMPS)], and the second generation (2G) included digital mobile phones [e.g., global system for mobile communications (GSM), personal digital cellular (PDC), and...
568 p dtu 10/11/2012 297 2
Từ khóa: 3G Mobile Communications, mobile communication system, mobile telecommunications, hệ thống viễn thông, công nghệ 3G, kỹ thuật viễn thông
Algorithms for communications systems and their applications Part2
This volume presents the logical arithmetical or computational procedures within communications systems that will ensure the solution to various problems. The authors comprehensively introduce the theoretical elements that are at the basis of the field of algorithms for communications systems. Various applications of these algorithms are then illustrated with particular attention to wired and wireless network access technologies.
586 p dtu 06/11/2012 246 2
Từ khóa: communications systems, wireless network, access technologies, công nghệ không dây, thông tin liện lạc, kỹ thuật thông tin
Algorithms for communications systems and their applications Part1
This volume presents the logical arithmetical or computational procedures within communications systems that will ensure the solution to various problems. The authors comprehensively introduce the theoretical elements that are at the basis of the field of algorithms for communications systems. Various applications of these algorithms are then illustrated with particular attention to wired and wireless network access technologies.
730 p dtu 06/11/2012 229 2
Từ khóa: communications systems, wireless network, access technologies, công nghệ không dây, kỹ thuật viễn thông, thông tin liên lạc
Wireless Optical Communication Systems
The use of optical free-space emissions to provide indoor wireless communications has been studied extensively since the pioneering work of Gfeller and Bapst in 1979 [1]. These studies have been invariably interdisciplinary involving such far flung areas such as optics design‚ indoor propagation studies‚ electronics design‚ communications systems design among others. The focus of this text is on the design of communications systems for...
210 p dtu 04/11/2012 276 2
Từ khóa: Wireless Optical Communication Systems, wireless communications, electronics design, communications systems, hệ thống thông tin, kỹ thuật viễn thông, công nghệ truyền thông
Wiless communication technology
Explain the nature and importance of wireless communication. Outline the history of wireless communication. Explain the necessity for modulation in a radio communication system. Outline the roles of the transmitter, receiver, and channel in a radio communication system. Describe and explain the differences among simplex, half-duplex, and full-duplex communication systems. Describe the need for wireless networks and explain the use of...
590 p dtu 04/11/2012 237 3
Từ khóa: wireless communication, Wiless communication technology, communication system, mạng không dây, hệ thống truyền thông, công nghệ truyền thông
Wiless communication technologies: new multimedia systems
During 12-15 of September 1999, 10th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC’99) was held in Osaka Japan, and it was really a successful symposium that accommodated more than 600 participants from more than 30 countries and regions. PIMRC is really well organized annual symposium for wireless multimedia communication systems, in which, various up-to-date topics are discussed in the invited talk,...
340 p dtu 04/11/2012 268 3
Từ khóa: Wiless communication technologies, new multimedia systems, Mobile Radio Communications, multimedia communication, truyền thông đa phương tiện, truyền thống phát thanh, hệ thống truyền thông