IEEE ISSSTA '94

IEEE ISSSTA '94 PDF Author:
Publisher:
ISBN:
Category : Spread spectrum communications
Languages : en
Pages : 326

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Book Description

IEEE ISSSTA '94

IEEE ISSSTA '94 PDF Author:
Publisher:
ISBN:
Category : Spread spectrum communications
Languages : en
Pages : 326

Get Book

Book Description


IEEE ISSSTA '94

IEEE ISSSTA '94 PDF Author:
Publisher:
ISBN:
Category : Spread spectrum communications
Languages : en
Pages : 372

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Book Description


Code Division Multiple Access Communications

Code Division Multiple Access Communications PDF Author: Savo G. Glisic
Publisher: Springer Science & Business Media
ISBN: 146152251X
Category : Technology & Engineering
Languages : en
Pages : 366

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Book Description
Code Division Multiple Access (CDMA) has become one of the main candidates for the next generation of mobile land and satellite communication systems. CDMA is based on spread spectrum techniques, which have been used in military applications for over half a century. Only recently, however, has it been recognised that spread spectrum techniques, combined with some additional steps, can provide higher capacity and better flexibility for the mobile cellular radio communications. Code Division Multiple Access Communications comprises a set of contributions from the most distinguished world scientists in the field. These papers review the basic theory and some of the most important problems related to spread spectrum and CDMA. The topics covered centre on the information theory aspects of CDMA; interference suppression and performance analysis. The material presented in this book summarises the main problems in modern CDMA theory and practice and gives a solid starting point for studying this complex and still challenging field. As such Code Division Multiple Access Communications is essential reading for all researchers and designers working in mobile communication systems and provides an excellent text for a course on the subject.

Independent Component Analysis and Blind Signal Separation

Independent Component Analysis and Blind Signal Separation PDF Author: Carlos G. Puntonet
Publisher: Springer
ISBN: 3540301100
Category : Mathematics
Languages : en
Pages : 1270

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Book Description
In many situations found both in Nature and in human-built systems, a set of mixed signals is observed (frequently also with noise), and it is of great scientific and technological relevance to be able to isolate or separate them so that the information in each of the signals can be utilized. Blind source separation (BSS) research is one of the more interesting emerging fields now a days in the field of signal processing. It deals with the algorithms that allow the recovery of the original sources from a set of mixtures only. The adjective "blind" is applied because the purpose is to estimate the original sources without any a priori knowledge about either the sources or the mixing system. Most of the models employed in BSS assume the hypothesis about the independence of the original sources. Under this hypothesis, a BSS problem can be considered as a particular case of independent component analysis(ICA), a linear transformation technique that, starting from a multivariate representation of the data, minimizes the statistical dependence between the components of the representation. It can be claimed that most of the advances in ICA have been motivated by the search for solutions to the BSS problem and, the other way around, advances in ICA have been immediately applied to BSS. ICA and BSS algorithms start from a mixture model, whose parameters are estimated from the observed mixtures. Separation is achieved by applying the inverse mixture model to the observed signals(separating or unmixing model). Mixturem- els usually fall into three broad categories: instantaneous linear models, convolutive models and nonlinear models, the?rstone being the simplest but, in general, not near realistic applications. The development and test of the algorithms can be accomplished through synthetic data or with real-world data. Obviously, the most important aim(and most difficult) is the separation of real-world mixtures. BSS and ICA have strong relations also, apart from signal processing, with other fields such as statistics and artificial neural networks. As long as we can find a system that emits signals propagated through a mean, andthosesignalsarereceivedbyasetofsensorsandthereisaninterestinrecovering the original sources, we have a potential field of application for BSS and ICA. Inside that wide range of applications we can find, for instance: noise reduction applications, biomedical applications, audio systems, telecommunications, and many others. This volume comes out just 20 years after the first contributions in ICA and BSS 1 appeared . Therein after, the number of research groups working in ICA and BSS has been constantly growing, so that nowadays we can estimate that far more than 100 groups are researching in these fields. As proof of the recognition among the scientific community of ICA and BSS developments there have been numerous special sessions and special issues in several well- 1 J. Herault, B. Ans, "Circuits neuronaux à synapses modi?ables: décodage de messages composites para apprentissage non supervise", C.R. de l'Académie des Sciences, vol. 299, no. III-13,pp.525-528,1984

Protocols and Architectures for Wireless Sensor Networks

Protocols and Architectures for Wireless Sensor Networks PDF Author: Holger Karl
Publisher: John Wiley & Sons
ISBN: 0470519231
Category : Technology & Engineering
Languages : en
Pages : 531

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Book Description
Learn all you need to know about wireless sensor networks! Protocols and Architectures for Wireless Sensor Networks provides a thorough description of the nuts and bolts of wireless sensor networks. The authors give an overview of the state-of-the-art, putting all the individual solutions into perspective with one and other. Numerous practical examples, case studies and illustrations demonstrate the theory, techniques and results presented. The clear chapter structure, listing learning objectives, outline and summarizing key points, help guide the reader expertly through the material. Protocols and Architectures for Wireless Sensor Networks: Covers architecture and communications protocols in detail with practical implementation examples and case studies. Provides an understanding of mutual relationships and dependencies between different protocols and architectural decisions. Offers an in-depth investigation of relevant protocol mechanisms. Shows which protocols are suitable for which tasks within a wireless sensor network and in which circumstances they perform efficiently. Features an extensive website with the bibliography, PowerPoint slides, additional exercises and worked solutions. This text provides academic researchers, graduate students in computer science, computer engineering, and electrical engineering, as well as practitioners in industry and research engineers with an understanding of the specific design challenges and solutions for wireless sensor networks. Check out www.wiley.com/go/wsn for accompanying course material! "I am deeply impressed by the book of Karl & Willig. It is by far the most complete source for wireless sensor networks...The book covers almost all topics related to sensor networks, gives an amazing number of references, and, thus, is the perfect source for students, teachers, and researchers. Throughout the book the reader will find high quality text, figures, formulas, comparisons etc. - all you need for a sound basis to start sensor network research." Prof. Jochen Schiller, Institute of Computer Science, Freie Universität Berlin

Lecture Notes on Impedance Spectroscopy

Lecture Notes on Impedance Spectroscopy PDF Author: Olfa Kanoun
Publisher: CRC Press
ISBN: 1315713667
Category : Science
Languages : en
Pages : 142

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Book Description
Impedance Spectroscopy is a powerful measurement method used in many application fields such as electrochemistry, material science, biology and medicine, semiconductor industry and sensors.Using the complex impedance at various frequencies increases the informational basis that can be gained during a measurement. It helps to separate different effe

Millimeter-Wave Circuits for 5G and Radar

Millimeter-Wave Circuits for 5G and Radar PDF Author: Gernot Hueber
Publisher: Cambridge University Press
ISBN: 1108492789
Category : Technology & Engineering
Languages : en
Pages : 455

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Book Description
Discover the concepts and techniques needed to design millimeter-wave circuits for current and emerging wireless system applications.

Mobile and Wireless Communications

Mobile and Wireless Communications PDF Author: Salma Ait Fares
Publisher: BoD – Books on Demand
ISBN: 9533070420
Category : Technology & Engineering
Languages : en
Pages : 418

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Book Description
Mobile and wireless communications applications have a clear impact on improving the humanity wellbeing. From cell phones to wireless internet to home and office devices, most of the applications are converted from wired into wireless communication. Smart and advanced wireless communication environments represent the future technology and evolutionary development step in homes, hospitals, industrial, vehicular and transportation systems. A very appealing research area in these environments has been the wireless ad hoc, sensor and mesh networks. These networks rely on ultra low powered processing nodes that sense surrounding environment temperature, pressure, humidity, motion or chemical hazards, etc. Moreover, the radio frequency (RF) transceiver nodes of such networks require the design of transmitter and receiver equipped with high performance building blocks including antennas, power and low noise amplifiers, mixers and voltage controlled oscillators. Nowadays, the researchers are facing several challenges to design such building blocks while complying with ultra low power consumption, small area and high performance constraints. CMOS technology represents an excellent candidate to facilitate the integration of the whole transceiver on a single chip. However, several challenges have to be tackled while designing and using nanoscale CMOS technologies and require innovative idea from researchers and circuits designers. While major researchers and applications have been focusing on RF wireless communication, optical wireless communication based system has started to draw some attention from researchers for a terrestrial system as well as for aerial and satellite terminals. This renewed interested in optical wireless communications is driven by several advantages such as no licensing requirements policy, no RF radiation hazards, and no need to dig up roads besides its large bandwidth and low power consumption. This second part of the book, Mobile and Wireless Communications: Key Technologies and Future Applications, covers the recent development in ad hoc and sensor networks, the implementation of state of the art of wireless transceivers building blocks and recent development on optical wireless communication systems. We hope that this book will be useful for students, researchers and practitioners in their research studies.

WCDMA

WCDMA PDF Author: Tero Ojanperä
Publisher: Artech House
ISBN: 1580531806
Category : Computers
Languages : en
Pages : 477

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Book Description
While covering the basics of wideband CDMA, this major revision of the bestseller brings design engineers and technical managers up to date with all the latest developments and technologies in third generation mobile communications. This cutting-edge book gives professionals a complete understanding of the complex standardization environment of 3G networks and the design and development of 3G systems.

Selected Areas in Cryptography

Selected Areas in Cryptography PDF Author: Howard Heys
Publisher: Springer
ISBN: 3540465138
Category : Computers
Languages : en
Pages : 251

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Book Description
This book constitutes the thoroughly refereed post-workshop proceedings of the 6th Annual International Workshop on Selected Areas in Cryptography, SAC'99, held in Kingston, Ontario, Canada in August 1999. The 17 revised full papers presented went through two rounds of reviewing and revision and were selected from 29 submissions. The papers are organized in sections on cryptosystems and pseudorandom number generators, security aspects of block cyphers, cryptoanalysis of block cyphers, efficient implementations of cryptosystems, and cryptography for network applications.