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Books > Professional & Technical > Electronics & communications engineering > Communications engineering / telecommunications > General

Multi-Carrier Spread-Spectrum - For Future Generation Wireless Systems, Fourth International Workshop, Germany, September... Multi-Carrier Spread-Spectrum - For Future Generation Wireless Systems, Fourth International Workshop, Germany, September 17-19, 2003 (Hardcover, 2004 ed.)
Khaled Fazel, S Kaiser
R5,253 Discovery Miles 52 530 Ships in 18 - 22 working days

The benefits and success of multi-carrier (MC) modulation on one side and the flexibility offered by the spread spectrum (SS) technique on the other side have motivated many researchers to investigate the combination of both techniques since 1993. This combination known as multi-carrier spread spectrum (MC-SS) benefits from the advantages of both systems and offers high flexibility, high spectral efficiency, simple detection strategies, narrow-band interference rejection capability, etc. The basic principle of this combination is straightforward: The spreading is performed as direct sequence spread spectrum (DS-SS) but instead of transmitting the chips over a single carrier, several sub-carriers are employed. The MC modulation and demodulation can easily be realized in the digital domain by performing IFFT and FFT operations. The separation of the users' signals can be performed in the code domain. MC-SS systems can perform the spreading in frequency direction, which allows for simple signal detection strategies. Since 1993, MC-SS has been deeply studied and new alternative solutions have been proposed. Meanwhile, deep system analysis and comparison with DS-CDMA have been performed that show the superiority of MC-CDMA. The aim of this book is to edit the ensemble of the newest contributions and research results in this new field that have been presented during the 4th International Workshop on Multi-Carrier Spread-Spectrum (MC-SS 2003), held in Oberpfaffenhofen, Germany.

Advances in Gabor Analysis (Hardcover, 2003 ed.): Hans G. Feichtinger, Thomas Strohmer Advances in Gabor Analysis (Hardcover, 2003 ed.)
Hans G. Feichtinger, Thomas Strohmer
R2,853 Discovery Miles 28 530 Ships in 18 - 22 working days

The Applied and Numerical Harmonic Analysis (ANHA) book series aims to provide the engineering, mathematical, and scientific communities with significant developments in harmonic analysis, ranging from abstract har monic analysis to basic applications. The title of the series reflects the im portance of applications and numerical implementation, but richness and relevance of applications and implementation depend fundamentally on the structure and depth of theoretical underpinnings. Thus, from our point of view, the interleaving of theory and applications and their creative symbi otic evolution is axiomatic. Harmonic analysis is a wellspring of ideas and applicability that has flour ished, developed, and deepened over time within many disciplines and by means of creative cross-fertilization with diverse areas. The intricate and fundamental relationship between harmonic analysis and fields such as sig nal processing, partial differential equations (PDEs), and image processing is reflected in our state of the art ANHA series. Our vision of modern harmonic analysis includes mathematical areas such as wavelet theory, Banach algebras, classical Fourier analysis, time frequency analysis, and fractal geometry, as well as the diverse topics that impinge on them."

Redesigning Human Systems (Hardcover): Enid Mumford Redesigning Human Systems (Hardcover)
Enid Mumford
R2,126 Discovery Miles 21 260 Ships in 18 - 22 working days

Organizational change is becoming increasingly complex, challenging and difficult to handle as technology advances. And there is a need to discuss how it can be both more effectively managed by large and small organizations, while at the same time the strategies for changes are based on ethical notions of democracy and participation. Redesigning Human Systems assists those interested in and responsible for the management of major change within organizations, and provides the theories and values that should be adhered to in order to achieve that change successfully and effectively.

Telecommunications Quality of Service Management - From legacy to emerging services (Hardcover, [New): Antony Oodan, Keith... Telecommunications Quality of Service Management - From legacy to emerging services (Hardcover, [New)
Antony Oodan, Keith Ward, Catherine Savolaine, Mahmoud Daneshmand, Peter Hoath
R3,706 Discovery Miles 37 060 Ships in 10 - 15 working days

In today's increasingly competitive communications environment, Quality of Service (QoS) is of paramount importance in the battle to win market share. However, the enhanced expectations of customers and the introduction of many new services and technologies makes comprehending and meeting customer requirements a real challenge. Building on the issues covered in Quality of Service in Telecommunications (1997), this book examines the technical, service and human issues that need to be addressed in order to provide a level of QoS that will meet those requirements. One key objective is to increase the reader's understanding of the importance of QoS and to show how the concepts presented can be applied to the reader's own circumstances. This book provides a comprehensive overview of definitions and standards, frameworks and models, network performance, internet, mobile and satellite services, the impact on customers, external drivers, economics, fraud and security and future trends. The authors, established experts in their fields, have wide-ranging experience in both UK and US telecommunications companies, reflecting the global nature of this industry and the universal concept of QoS.

Voice Over IP (Internet Protocol) - Systems and solutions (Hardcover, Illustrated Ed): Richard Swale Voice Over IP (Internet Protocol) - Systems and solutions (Hardcover, Illustrated Ed)
Richard Swale
R2,853 Discovery Miles 28 530 Ships in 10 - 15 working days

Voice over Internet Protocol (VoIP) has recently evolved from a simple capability for transporting voice communications into a much more powerful technology capable of changing the way voice applications are constructed, delivered, marketed and sold. Whilst VoIP has clearly provided a focus for much debate within the telecommunications industry, there has been a clear gulf between hype and reality. However the questions now being asked have migrated from 'Will it work?' to 'What will the industry look like when it is delivered at scale?' In Voice over IP: systems and solutions, Richard Swale has brought together key contributors from within the BT Group and externally, to cover all of the important issues surrounding telephony over IP networks. This authoritative book examines VoIP as a technology and its consideration within the industry, the motivations for VoIP networks, a review of the status of the major components of a VoIP network and their development, and both current and emerging applications. VoIP technology blurs the boundaries between fixed, mobile and multimedia communications and the implications are explored and discussed. The primary market for this comprehensive book is telecommunications engineers and developers, service providers and regulators. However, all those with a technical or business interest in this rapidly developing area of communications technology will also find this book highly relevant.

Mathematical Methods in Time Series Analysis and Digital Image Processing (Hardcover, 2008 ed.): Rainer Dahlhaus, Jurgen... Mathematical Methods in Time Series Analysis and Digital Image Processing (Hardcover, 2008 ed.)
Rainer Dahlhaus, Jurgen Kurths, Peter Maass, Jens Timmer
R2,695 Discovery Miles 26 950 Ships in 18 - 22 working days

The aim of this volume is to bring together research directions in theoretical signal and imaging processing developed rather independently in electrical engineering, theoretical physics, mathematics and the computer sciences.

In particular, mathematically justified algorithms and methods, the mathematical analysis of these algorithms, and methods as well as the investigation of connections between methods from time series analysis and image processing are reviewed. An interdisciplinary comparison of these methods, drawing upon common sets of test problems from medicine and geophysical/environmental sciences, is also addressed.

This volume coherently summarizes work carried out in the field of theoretical signal and image processing. It focuses on non-linear and non-parametric models for time series as well as on adaptive methods in image processing.

Proceedings of International Conference on VLSI, Communication, Advanced Devices, Signals & Systems and Networking... Proceedings of International Conference on VLSI, Communication, Advanced Devices, Signals & Systems and Networking (VCASAN-2013) (Hardcover, 2013 ed.)
Veena S Chakravarthi, Yasha Jyothi M. Shirur, Rekha P.
R6,524 Discovery Miles 65 240 Ships in 10 - 15 working days

This book is a collection of papers presented by renowned researchers, keynote speakers, and academicians in the International Conference on VLSI, Communication, Analog Designs, Signals & Systems and Networking (VCASAN-2013), organized by B.N.M. Institute of Technology, Bangalore, India during July 17 19, 2013. The book provides global trends in cutting-edge technologies in electronics and communication engineering. The content of the book is useful to engineers, researchers, and academicians as well as industry professionals.

Next Generation Wireless Networks (Hardcover, 2001 ed.): Sirin Tekinay Next Generation Wireless Networks (Hardcover, 2001 ed.)
Sirin Tekinay
R2,797 Discovery Miles 27 970 Ships in 18 - 22 working days

This book is a collection of extended versions of the papers presented at the Symposium on Next Generation Wireless Networks, May 26, 2000, New Jersey Institute of Technology, Newark, NJ. Each chapter includes, in addition to technical contributions, a tutorial of the corresponding area. It has been a privilege to bring together these contributions from researchers on the leading edge of the field. The papers were submitted in response to a call for papers aiming to concentrate on the applications and services for the "next generation," deliberately omitting the numeric reference so that the authors' vision of the future would not be limited by the definitive requirements of a particular set of standards. The book, as a result, reflects the top-down approach by focusing on enabling technologies for the applications and services that are the defining essentials for future wireless networks. This approach strikes a balance between the academia and the industry by addressing new wireless network architectures enabling mobility and location enhanced applications and services that will give wireless systems the competitive edge over others. The main theme of the book is the advent of wireless networks as an irreplaceable means of global communication as opposed to a mere substitute for, or a competitor of, wireline networks. Geolocation emerges as the facilitator of mobility and location sensitive services. The fields of geolocation and wireless communications have been forced to merge, following the Federal Commission of Communications' (FCC) ruling that obliges wireless providers with emergency caller geolocation.

Telecommunications Network Modelling, Planning and Design (Hardcover, New): Sharon Evans Telecommunications Network Modelling, Planning and Design (Hardcover, New)
Sharon Evans
R2,633 Discovery Miles 26 330 Ships in 10 - 15 working days

Telecommunications Network Modelling, Planning and Design addresses sophisticated modelling techniques from the perspective of the communications industry and covers some of the major issues facing telecommunications network engineers and managers today. Topics covered include network planning for transmission systems, modelling of SDH transport network structures and telecommunications network design and performance modelling, as well as network costs, ROI modelling and QoS in 3G networks. This practical book will prove a valuable resource to network engineers and managers working in today's competitive telecommunications environment.

Guide to Big Data Applications (Hardcover, 1st ed. 2018): S. Srinivasan Guide to Big Data Applications (Hardcover, 1st ed. 2018)
S. Srinivasan
R4,844 Discovery Miles 48 440 Ships in 18 - 22 working days

This handbook brings together a variety of approaches to the uses of big data in multiple fields, primarily science, medicine, and business. This single resource features contributions from researchers around the world from a variety of fields, where they share their findings and experience. This book is intended to help spur further innovation in big data. The research is presented in a way that allows readers, regardless of their field of study, to learn from how applications have proven successful and how similar applications could be used in their own field. Contributions stem from researchers in fields such as physics, biology, energy, healthcare, and business. The contributors also discuss important topics such as fraud detection, privacy implications, legal perspectives, and ethical handling of big data.

Optical Channels - Fibers, Clouds, Water, and the Atmosphere (Hardcover, 1988 ed.): Sherman Karp, Robert M. Gagliardi, Steven... Optical Channels - Fibers, Clouds, Water, and the Atmosphere (Hardcover, 1988 ed.)
Sherman Karp, Robert M. Gagliardi, Steven E. Moran, Lawrence B. Stotts
R5,369 Discovery Miles 53 690 Ships in 18 - 22 working days

When we were first approached by Dr. Lucky to write this book we were very enthusiastic about the prospect, since we had contemplated a similar project for quite some time. The difficulty lay in how best to digest the vast amount of data on optical propagation, reduce it to a book of manageable size, and simultaneously form the transition from the physics of propagation to the engineering of optical channels. This is the intent of Optical Channels. In accomplishing our goal it was necessary to condense the material on optical propagation and, in so doing, we have left a large amount to be handled via references. We have tried to make these decisions in a consistent manner so that the book will be uniform in its treatment of this topic. We identify four channels for consideration: the free-space channel, which: is characteristic of a tranquil atmosphere or a space-to-space link; the turbulent channel, which is characteristic of the atmospheric channel; the scatter channel in two forms, clouds and water; and the fiber optic channel. For each of these channels we have tried to reduce the applicable propagation theory to a level that can be used for engineering design. This has been done by example, but here again decisions had to be made on which examples to present. We have not tried to present any material on optical components and consequently other references on engineering would be necessary to supplement this book.

Blind Estimation Using Higher-Order Statistics (Hardcover, 1999 ed.): Asoke Kumar Nandi Blind Estimation Using Higher-Order Statistics (Hardcover, 1999 ed.)
Asoke Kumar Nandi
R2,810 Discovery Miles 28 100 Ships in 18 - 22 working days

In the signal-processing research community, a great deal of progress in higher-order statistics (HOS) began in the mid-1980s. These last fifteen years have witnessed a large number of theoretical developments as well as real applications. Blind Estimation Using Higher-Order Statistics focuses on the blind estimation area and records some of the major developments in this field. Blind Estimation Using Higher-Order Statistics is a welcome addition to the few books on the subject of HOS and is the first major publication devoted to covering blind estimation using HOS. The book provides the reader with an introduction to HOS and goes on to illustrate its use in blind signal equalisation (which has many applications including (mobile) communications), blind system identification, and blind sources separation (a generic problem in signal processing with many applications including radar, sonar and communications). There is also a chapter devoted to robust cumulant estimation, an important problem where HOS results have been encouraging. Blind Estimation Using Higher-Order Statistics is an invaluable reference for researchers, professionals and graduate students working in signal processing and related areas.

Image Processing and Mathematical Morphology - Fundamentals and Applications (Hardcover): Frank Y. Shih Image Processing and Mathematical Morphology - Fundamentals and Applications (Hardcover)
Frank Y. Shih
R6,360 Discovery Miles 63 600 Ships in 10 - 15 working days

In the development of digital multimedia, the importance and impact of image processing and mathematical morphology are well documented in areas ranging from automated vision detection and inspection to object recognition, image analysis and pattern recognition. Those working in these ever-evolving fields require a solid grasp of basic fundamentals, theory, and related applications and few books can provide the unique tools for learning contained in this text.

Image Processing and Mathematical Morphology: Fundamentals and Applications is a comprehensive, wide-ranging overview of morphological mechanisms and techniques and their relation to image processing. More than merely a tutorial on vital technical information, the book places this knowledge into a theoretical framework. This helps readers analyze key principles and architectures and then use the author 's novel ideas on implementation of advanced algorithms to formulate a practical and detailed plan to develop and foster their own ideas. The book:

  • Presents the history and state-of-the-art techniques related to image morphological processing, with numerous practical examples
  • Gives readers a clear tutorial on complex technology and other tools that rely on their intuition for a clear understanding of the subject
  • Includes an updated bibliography and useful graphs and illustrations
  • Examines several new algorithms in great detail so that readers can adapt them to derive their own solution approaches

This invaluable reference helps readers assess and simplify problems and their essential requirements and complexities, giving them all the necessary data and methodology to master current theoretical developments and applications, as well as create new ones.

The Generalized Multipole Technique for Computational Electromagnetics (Hardcover): Christian Hafner The Generalized Multipole Technique for Computational Electromagnetics (Hardcover)
Christian Hafner
R3,188 Discovery Miles 31 880 Ships in 18 - 22 working days

Beginning with a detailed comparison of traditional methods of EM field analysis, this text leads up to a step-by-step explication of the Generalized Multiple Technique (GMT).

Analog Interfaces for Digital Signal Processing Systems (Hardcover, 1993 ed.): Frank Op't Eynde, Willy M.C. Sansen Analog Interfaces for Digital Signal Processing Systems (Hardcover, 1993 ed.)
Frank Op't Eynde, Willy M.C. Sansen
R4,150 Discovery Miles 41 500 Ships in 18 - 22 working days

It is a great honor to provide an introduction for Dr. Frank Op 't Eynde's and Dr. Willy Sansen's book "Analog Interfaces for Digital Signal Processing Systems." The field of analog integrated circuit design is undergoing rapid evolution. The pervasiveness of digital processing has considerably modified the micro-system architectures: the analog part of complex mixed systems is more and more pushed at the boundary limits of the processing chain. Moreover, the increased performance of digital circuits, in terms of accuracy and speed, are making the specification requirements of analog circuits very strict. In addition to this, the technology, supply voltage and power consumption of analog circuits must be compatible with those, typical for digital circuits. Therefore, in a few words, analog circuits are becoming complex and specialised interfaces between the real world and digital signal processing domains. This technological evolution should be accompanied by an equivalently fast evolution in designer competencies. Knowledge of complicated signal handling should be quickly replaced by know-how of simple but very accurate and very fast signal processing and a solid background in data conversion techniques. All of this through the use of the CMOS (and possibly BiCMOS) technology.

Subband and Wavelet Transforms - Design and Applications (Hardcover, 1996 ed.): Ali N. Akansu, Mark J.T. Smith Subband and Wavelet Transforms - Design and Applications (Hardcover, 1996 ed.)
Ali N. Akansu, Mark J.T. Smith
R5,227 Discovery Miles 52 270 Ships in 18 - 22 working days

The scientists and engineers of today are relentless in their continuing study and analysis of the world about us from the microcosm to the macrocosm. A central purpose of this study is to gain sufficient scientific information and insight to enable the development of both representative and useful models of the superabundance of physical processes that surround us. The engineers need these models and the associated insight in order to build the information processing systems and control systems that comprise these new and emerging technologies. Much of the early modeling work that has been done on these systems has been based on the linear time-invariant system theory and its extensive use of Fourier transform theory for both continuous and discrete systems and signals. However many of the signals arising in nature and real systems are neither stationary nor linear but tend to be concentrated in both time and frequency. Hence a new methodology is needed to take these factors properly into account.

Distributed Video Sensor Networks (Hardcover, 2011 Ed.): Bir Bhanu, Chinya V. Ravishankar, Amit K. Roy-chowdhury, Hamid... Distributed Video Sensor Networks (Hardcover, 2011 Ed.)
Bir Bhanu, Chinya V. Ravishankar, Amit K. Roy-chowdhury, Hamid Aghajan, Demetri Terzopoulos
R4,112 Discovery Miles 41 120 Ships in 18 - 22 working days

Large-scale video networks are of increasing importance in a wide range of applications. However, the development of automated techniques for aggregating and interpreting information from multiple video streams in real-life scenarios is a challenging area of research.

Collecting the work of leading researchers from a broad range of disciplines, this timely text/reference offers an in-depth survey of the state of the art in distributed camera networks. The book addresses a broad spectrum of critical issues in this highly interdisciplinary field: current challenges and future directions; video processing and video understanding; simulation, graphics, cognition and video networks; wireless video sensor networks, communications and control; embedded cameras and real-time video analysis; applications of distributed video networks; and educational opportunities and curriculum-development.

Topics and features: Presents an overview of research in areas of motion analysis, invariants, multiple cameras for detection, object tracking and recognition, and activities in video networks Provides real-world applications of distributed video networks, including force protection, wide area activities, port security, and recognition in night-time environments Describes the challenges in graphics and simulation, covering virtual vision, network security, human activities, cognitive architecture, and displays Examines issues of multimedia networks, registration, control of cameras (in simulations and real networks), localization and bounds on tracking Discusses system aspects of video networks, with chapters on providing testbed environments, data collection on activities, new integrated sensors for airborne sensors, face recognition, and building sentient spaces Investigates educational opportunities and curriculum development from the perspective of computer science and electrical engineering

This unique text will be of great interest to researchers and graduate students of computer vision and pattern recognition, computer graphics and simulation, image processing and embedded systems, and communications, networks and controls. The large number of example applications will also appeal to application engineers.

Performance Analysis of ATM Networks - IFIP TC6 WG6.3 / WG6.4 Fifth International Workshop on Performance Modelling and... Performance Analysis of ATM Networks - IFIP TC6 WG6.3 / WG6.4 Fifth International Workshop on Performance Modelling and Evaluation of ATM Networks July 21-23, 1997, Ilkley, UK (Hardcover, 2000 ed.)
Demetres D. Kouvatsos
R5,460 Discovery Miles 54 600 Ships in 18 - 22 working days

Over recent years, a considerable amount of effort has been devoted, both in industry and academia, towards the performance modelling, evaluation and prediction of Asynchronous Transfer Mode (ATM) networks. This book describes recent advances in ATM networks reflecting the state-of-the-art technology and research achievements worldwide. In addition, it provides a fundamental source of reference in the ATM field. Research topics discussed in detail include: Traffic Modelling and Characterisation; Routing; Switch and Multiplexer Models; Call Admission Control (CAC); Congestion Control; Resource Allocation; Quality of Service (QoS); Tools and Techniques. This volume contains recently extended refereed papers of the 5th International Workshop on Performance Modelling and Evaluation of ATM Networks, which was sponsored by the International Federation for Information Processing (IFIP) and held in Ilkley, UK in July 1997. Performance Analysis of ATM Networks continues the tradition established by the first three IFIP volumes on the subject, and it is ideal for personnel in computer/communication industries as well as academic and research staff in computer science and electrical engineering.

High-Speed Optical Receivers with Integrated Photodiode in Nanoscale CMOS (Hardcover, 2011 ed.): Filip Tavernier, Michiel... High-Speed Optical Receivers with Integrated Photodiode in Nanoscale CMOS (Hardcover, 2011 ed.)
Filip Tavernier, Michiel Steyaert
R4,025 Discovery Miles 40 250 Ships in 18 - 22 working days

This book describes the design of optical receivers that use the most economical integration technology, while enabling performance that is typically only found in very expensive devices. To achieve this, all necessary functionality, from light detection to digital output, is integrated on a single piece of silicon. All building blocks are thoroughly discussed, including photodiodes, transimpedance amplifiers, equalizers and post amplifiers.

Timed Arrays - Wideband and Time Varying Antenna Arrays (Hardcover): RL Haupt Timed Arrays - Wideband and Time Varying Antenna Arrays (Hardcover)
RL Haupt
R3,267 Discovery Miles 32 670 Ships in 18 - 22 working days

Introduces timed arrays and design approaches to meet the new high performance standards The author concentrates on any aspect of an antenna array that must be viewed from a time perspective. The first chapters briefly introduce antenna arrays and explain the difference between phased and timed arrays. Since timed arrays are designed for realistic time-varying signals and scenarios, the book also reviews wideband signals, baseband and passband RF signals, polarization and signal bandwidth. Other topics covered include time domain, mutual coupling, wideband elements, and dispersion. The author also presents a number of analog and digital beamforming networks for creating and manipulating beams. The book concludes with an overview of the methods to integrate time delay into the array design and of several other adaptive arrays that prove useful in many different systems. * Examines RF signal concepts such as polarization and signal bandwidth and their applications to timed antenna arrays * Covers arrays of point source, elements in timed antenna arrays, active electronically scanned array technology, and time delay in corporate fed arrays * Includes complete design examples for placing time delay in arrays Timed Arrays: Wideband and Time Varying Antenna Arrays is written for practicing engineers and scientists in wireless communication, radar, and remote sensing as well as graduate students and professors interested in advanced antenna topics.

Proceedings of the Eighth International Conference on Management Science and Engineering Management - Focused on Computing and... Proceedings of the Eighth International Conference on Management Science and Engineering Management - Focused on Computing and Engineering Management (Hardcover, 2014 ed.)
Jiuping Xu, Virgilio Antonio Cruz Machado, Benjamin Lev, Stefan Nickel
R5,373 Discovery Miles 53 730 Ships in 18 - 22 working days

This is the Proceedings of the Eighth International Conference on Management Science and Engineering Management (ICMSEM) held from July 25 to 27, 2014 at Universidade Nova de Lisboa, Lisbon, Portugal and organized by International Society of Management Science and Engineering Management (ISMSEM), Sichuan University (Chengdu, China) and Universidade Nova de Lisboa (Lisbon, Portugal). The goals of the conference are to foster international research collaborations in Management Science and Engineering Management as well as to provide a forum to present current findings. A total number of 138 papers from 14 countries are selected for the proceedings by the conference scientific committee through rigorous referee review. The selected papers in the second volume are focused on Computing and Engineering Management covering areas of Computing Methodology, Project Management, Industrial Engineering and Information Technology.

Multi-Carrier Spread Spectrum & Related Topics (Hardcover, 2nd 2000 ed.): Khaled Fazel, S Kaiser Multi-Carrier Spread Spectrum & Related Topics (Hardcover, 2nd 2000 ed.)
Khaled Fazel, S Kaiser
R5,346 Discovery Miles 53 460 Ships in 18 - 22 working days

Khaled Fazel Stefan Kaiser Digital Microwave Systems German Aerospace Center (DLR) Bosch Telecom GmbH Institute for Communications Technology D-71522 Backnang, Germany D-82234 Wessling, Germany In this last decade of this millennium the technique of multi-carrier transmission for wireless broadband multimedia applications has been receiving wide interests. Its first great success was in 1990 as it was selected in the European Digital Audio Broadcasting (DAB) standard. Its further prominent successes were in 1995 and 1998 as it was selected as modulation scheme in the European Digital Video Broadcasting (DVB-T) and in three broadband wireless indoor standards, namely ETSI-Hiperlan-II, American IEEE-802. 11 and Japanese MMAC, respectively. The benefits and success of multi-carrier (MC) modulation in one side and the flexibility offered by spread spectrum (SS) technique in other hand motivated many researchers to investigate the combination of both techniques, known as multi-carrier spread-spectrum (MC-SS). This combination benefits from the main advantages of both systems and offers high flexibility, high spectral efficiency, simple detection strategies, narrow band interference rejection capability, etc. . The basic principle of this combination is straightforward: The spreading is performed as direct SS (DS-SS) but instead of transmitting the chips over a single sequence carrier, several sub-carriers could be employed. As depicted in Figure 1, after spreading with assigned user specific code of processing gain G the frequency mapping and multi-carrier modulation is applied. In the receiver side after multi-carrier demodulation and frequency de-mapping, the corresponding detection algorithm will be performed."

Mobile Information Communication Technologies Adoption in Developing Countries - Effects and Implications (Hardcover, New):... Mobile Information Communication Technologies Adoption in Developing Countries - Effects and Implications (Hardcover, New)
Ahmed Gad Abdel-Wahab; Revised by Ahmed Ahmed a. El-Masry
R4,569 Discovery Miles 45 690 Ships in 18 - 22 working days

Mobile Information Communication Technologies Adoption in Developing Countries: Effects and Implications reviews different approaches and methodologies used in dealing with issues related to mobile ICTs, presents successful examples mobile ICT adoption in developing countries, and addresses the impact of culture on mobile ICT adoption and deployment. The diverse coverage of mobile information communication technologies adoption in developing countries presented in this book will contribute to a better understanding of all topics, research, and discoveries in this developing, significant field of study.

CMOS Cellular Receiver Front-Ends (Hardcover, 2002 ed.): Johan Janssens, Michiel Steyaert CMOS Cellular Receiver Front-Ends (Hardcover, 2002 ed.)
Johan Janssens, Michiel Steyaert
R4,157 Discovery Miles 41 570 Ships in 18 - 22 working days

CMOS Cellular Receiver Front-Ends: from Specification to Realization deals with the design of the receive path of a highly-integrated CMOS cellular transceiver for the GSM-1800 cellular system. The complete design trajectory is covered, starting from the documents describing the standard down to the systematic development of CMOS receiver ICs that comply to the standard. The design of CMOS receivers is tackled at all abstraction levels: from architecture level, via circuit level, down to the device level, and the other way around.

The theoretical core of the book discusses the fundamental and more advanced aspects of RF CMOS design. It focuses specifically on all aspects of the design of high-performance CMOS low-noise amplifiers.

5G Cyber Risks and Mitigation (Hardcover): Sabhyata Soni 5G Cyber Risks and Mitigation (Hardcover)
Sabhyata Soni
R3,443 Discovery Miles 34 430 Ships in 9 - 17 working days

• Technical language made simple • Researched matter • Maximum illustrations • To the point matter • Authored by a qualified person who is teaching in this field for the last 25 years

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