Space Division Multiple Access For Wireless Local Area Networks
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Space Division Multiple Access For Wireless Local Area Networks
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Author : Patrick Vandenameele
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-04-18
Space Division Multiple Access For Wireless Local Area Networks written by Patrick Vandenameele and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-04-18 with Technology & Engineering categories.
Wireless Local Area Networks (WLANs) are experiencing a growing importance recently. Whereas WLANs were primarily used for niche applications in the past, they are now deployed as wireless extensions to computer networks. The increase of the datarates from 2 Mbps up to 11 Mbps for roughly a constant price has played a major role in this breakthrough. As a consequence, an even greater success can be envisioned for the more recent OFDM-based WLAN standards in the 5 GHz band that offer up to 54 Mbps. At IMEC we have realized this potential already several years ago and have established a successful research program on OFDM-based WLAN. The program resulted in an operational prototype of a 5 GHz OFDM system. The longer term goals of this program are to extend the indoor range of the WLAN systems up to 100 m and to increase the capacity above 100 Mbps. Driven by these goals, Patrick embarked on the usage of multiple antenna techniques and, more in particular, Space Division Multiple Access (SDMA) for WLAN as the topic for his doctoral research. During this research, key contributions were made towards making SDMA for WLAN a reality. To name a few: A basic scheme for combining OFDM and SDMA was proposed. Also realistic non-linear detection methods were developed. These me- ods achieve a high implementation efficiency, by exploiting the p- allelism of the data model and the frequency-selectivity of the pr- agation channel.
Enterprise Wireless Local Area Network Architectures And Technologies
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Author : Rihai Wu
language : en
Publisher: CRC Press
Release Date : 2021-05-03
Enterprise Wireless Local Area Network Architectures And Technologies written by Rihai Wu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-03 with Computers categories.
This book has been written with the support of Huawei's large accumulation of technical knowledge and experience in the WLAN field, as well as its understanding of customer service requirements. First, the book covers service challenges facing enterprise wireless networks, along with detailing the latest evolution of Wi-Fi standards, air interface performance, and methods for improving user experience in enterprise scenarios. Furthermore, it illustrates typical networking, planning, and scenario-specific design for enterprise WLANs, and provides readers with a comprehensive understanding of enterprise WLAN planning, design, and technical implementation, as well as suggestions for deployment. This is a practical and easy-to-understand guide to WLAN design, and is written for WLAN technical support and planning engineers, network administrators, and enthusiasts of network technology. Authors Rihai Wu is Chief Architect of Huawei's campus network WLAN solution with 16 years of experience in wireless communications product design and a wealth of expertise in network design and product development. He previously served as a designer and developer of products for Wideband Code Division Multiple Access (WCDMA), LTE indoor small cells, and WLAN. Xun Yang is a WLAN standard expert from Huawei. He has nine years of experience in formulating WLAN standards, and previously served as 802.11ac Secretary, 802.11ah PHY Ad-hoc Co-chair, and 802.11ax MU Ad Hoc Sub Group Co-chair. Mr. Yang oversees technical research, the promotion of standards, and industrialization in the WLAN field, and has filed more than 100 patents. Xia Zhou is a documentation engineer of Huawei's campus network WLAN solution. She has 10 years of experience in creating documents for campus network products. Ms. Zhou was previously in charge of writing manuals for Huawei data center switches, WLAN products, and campus network solutions. She is also the author of Campus Network Solution Deployment Guide and was a co-sponsor of technical sessions such as WLAN from Basics to Proficiency. Yibo Wang is a documentation engineer of Huawei's campus network WLAN solution. He has nine years of experience in creating documents for campus network products. Mr. Wang was previously in charge of writing manuals for Huawei switches, WLAN products, and routers. He was also a co-sponsor of technical sessions such as WLAN from Basics to Proficiency and HCIA-WLAN certification training courses.
Design And Simulation Of Spectrum Management Methods For Wireless Local Area Networks
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Author : Andreas Könsgen
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-04-27
Design And Simulation Of Spectrum Management Methods For Wireless Local Area Networks written by Andreas Könsgen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-04-27 with Computers categories.
Andreas Könsgen describes two major areas of spectrum management: the coordination of neighbouring networks with overlapping ranges by controlling different transmission parameters and the channel allocation by the base station inside a radio cell using a cross-layer approach. Theoretical analyses and simulations demonstrate the usage of these methods and show the QoS enhancements which can be achieved.
Mimo Ofdm For Lte Wifi And Wimax
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Author : Lajos Hanzo
language : en
Publisher: John Wiley & Sons
Release Date : 2012-01-03
Mimo Ofdm For Lte Wifi And Wimax written by Lajos Hanzo and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-03 with Technology & Engineering categories.
MIMO-OFDM for LTE, WIFI and WIMAX: Coherent versus Non-Coherent and Cooperative Turbo-Transceivers provides an up-to-date portrayal of wireless transmission based on OFDM techniques augmented with Space-Time Block Codes (STBCs) and Spatial-Division Multiple Access (SDMA). The volume also offers an in-depth treatment of cutting-edge Cooperative Communications. This monograph collates the latest techniques in a number of specific design areas of turbo-detected MIMO-OFDM wireless systems. As a result a wide range of topical subjects are examined, including channel coding and multiuser detection (MUD), with a special emphasis on optimum maximum-likelihood (ML) MUDs, reduced-complexity genetic algorithm aided near-ML MUDs and sphere detection. The benefits of spreading codes as well as joint iterative channel and data estimation are only a few of the radical new features of the book. Also considered are the benefits of turbo and LDPC channel coding, the entire suite of known joint coding and modulation schemes, space-time coding as well as SDM/SDMA MIMOs within the context of various application examples. The book systematically converts the lessons of Shannon's information theory into design principles applicable to practical wireless systems; the depth of discussions increases towards the end of the book. Discusses many state-of-the-art topics important to today's wireless communications engineers. Includes numerous complete system design examples for the industrial practitioner. Offers a detailed portrayal of sphere detection. Based on over twenty years of research into OFDM in the context of various applications, subsequently presenting comprehensive bibliographies.
Energy And Spectrum Efficient Wireless Network Design
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Author : Guowang Miao
language : en
Publisher: Cambridge University Press
Release Date : 2015
Energy And Spectrum Efficient Wireless Network Design written by Guowang Miao and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Computers categories.
Provides the fundamental principles and practical tools needed to design next-generation wireless networks that are both energy- and spectrum-efficient.
Ofdm And Mc Cdma
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Author : Lajos Hanzo
language : en
Publisher: John Wiley & Sons
Release Date : 2007-01-11
Ofdm And Mc Cdma written by Lajos Hanzo and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-01-11 with Technology & Engineering categories.
Wireless communications has witnessed a tremendous growth during the past decade and further spectacular enabling technology advances are expected in an effort to render ubiquitous wireless connectivity a reality. Currently, a technical in-depth book on this subject is unavailable, which has a similar detailed exposure of OFDM, MIMO-OFDM and MC-CDMA. A further attraction of the joint treatment of these topics is that it allows the reader to view their design trade-offs in a comparative context. Divided into three main parts: Part I provides a detailed exposure of OFDM designed for employment in various applications Part II is another design alternative applicable in the context of OFDM systems where the channel quality fluctuations observed are averaged out with the aid of frequency-domain spreading codes, which leads to the concept of MC-CDMA Part III discusses how to employ multiple antennas at the base station for the sake of supporting multiple users in the uplink By providing an all-encompassing self-contained treatment this volume will appeal to a wide readership, as it is both an easy-reading textbook and a high-level research monograph.
The Art Of Digital Communication
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Author : Pasquale De Marco
language : en
Publisher: Pasquale De Marco
Release Date : 2025-07-11
The Art Of Digital Communication written by Pasquale De Marco and has been published by Pasquale De Marco this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-07-11 with Technology & Engineering categories.
Embark on a transformative journey into the realm of digital communication with this comprehensive guide, meticulously crafted to provide a thorough understanding of the subject matter. Delve into the fundamental concepts that underpin digital communication systems, gaining a solid foundation for exploring the intricacies of various techniques and protocols. Discover the diverse range of digital modulation techniques, delving into the mechanisms that enable the efficient transmission of data over various channels. Explore the realm of channel coding techniques, uncovering the strategies employed to combat noise and interference, ensuring reliable data transmission. Master the art of synchronization techniques, delving into the methods used to maintain coherence between transmitter and receiver, enabling seamless communication. Unravel the complexities of error control techniques, uncovering the mechanisms that detect and correct errors, ensuring the integrity of transmitted data. Investigate multiple-access techniques, gaining insights into the strategies employed to allow multiple users to share the same communication medium, maximizing efficiency and performance. Explore the captivating world of wireless communication systems, uncovering the technologies that enable us to communicate without the constraints of physical connections. Journey into the realm of optical communication systems, discovering the principles and applications of transmitting data using light. Delve into the intricacies of data communication networks, understanding the protocols and architectures that govern the exchange of information across vast distances. Uncover the emerging trends shaping the future of digital communication, including the transformative potential of 5G and beyond, the vast possibilities of the Internet of Things, the innovative approaches of Software-Defined Networking and Network Function Virtualization, and the groundbreaking applications of Artificial Intelligence. With its clear explanations, insightful examples, and thought-provoking case studies, this book serves as an invaluable resource for students, professionals, and enthusiasts alike. Embark on this enlightening journey into the art of digital communication and discover the boundless possibilities that await. If you like this book, write a review!
Mobile Telecommunications In A High Speed World
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Author : Peter Curwen
language : en
Publisher: CRC Press
Release Date : 2016-07-22
Mobile Telecommunications In A High Speed World written by Peter Curwen and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-07-22 with Technology & Engineering categories.
Mobile Telecommunications in a High Speed World tells the story of 3G and higher-speed mobile communication technologies. Over ten years have passed since the first third-generation (3G) licences were awarded following debates about the merits of auctions versus 'beauty contests' then, nothing much happened. More licences were issued, a few roll-outs commenced and everyone began to think it had all been a horribly expensive mistake. That may still turn out to be the case, but in the meantime there have been massive developments in terms of the number of licences and launches worldwide, in the range of services that can be accessed, in the range of devices that can be used to access them, in operator strategies etc. Even the technology has improved considerably with 4G now under discussion. Much of this story has been chronicled, largely on the Internet, but the information is in tens of thousands of bits and pieces and a large part of it is either misleading or just plain wrong. Here, Peter Curwen and Jason Whalley introduce the outcomes of research that has involved the compilation of a unique database which details every licence and launch worldwide involving 3G. The authors discuss the structure of the industry and the strategic behaviour of operators, as well as the social consequences of the spread of 3G. They examine the role of new entry upon competition, and present analysis of the main operators involved, the development of handsets and especially smartphones. A number of country case studies are included. This comprehensive and up-to-date volume includes a number of country studies and is written by two of the world's foremost researchers on this industry. Mobile Telecommunications in a High Speed World will serve the needs of students, academics and those involved, or contemplating involvement, with the telecoms industry. Why pay thousands of dollars to consultancies to separate the wheat from the chaff with respect to 3G when you can read this book.
Principles Of Data Transfer Through Communications Networks The Internet And Autonomous Mobiles
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Author : Izhak Rubin
language : en
Publisher: John Wiley & Sons
Release Date : 2024-12-24
Principles Of Data Transfer Through Communications Networks The Internet And Autonomous Mobiles written by Izhak Rubin and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-12-24 with Technology & Engineering categories.
Understand the principles and practical basis of global telecommunications and data communications networks with this essential text. Our increasingly connected world is more reliant than ever on data transport and the communication networking technologies of the moment. Ever-expanding wireless communications and the Internet of Things have brought connectivity into more areas of our lives than ever before. Virtually every workplace and industry is now reliant at some level on data transfer. Principles of Data Transfer through Communications Networks, the Internet, and Autonomous Mobiles offers a comprehensive yet accessible overview of the principles and methods of computer communications and mobile wireless network systems. It's designed to equip a vast range of students and professionals with the necessary toolkit to manage data flows between and across network systems at various scales. Drawing upon decades of teaching and practical experience, it's a must-own resource for anyone looking to understand the core mechanics that power our world of mass communications. Readers will also find: Coverage of cutting-edge technologies such as autonomous vehicular highways that draw upon novel communications technologies Detailed discussion of design and performance behavior for major communication networking technologies Treatment designed for readers with no prior knowledge of computer science or programming Principles of Data Transfer through Communications Networks, the Internet, and Autonomous Mobiles is ideal for students in data communications, telecommunications and wireless networking technology courses, as well as professionals working in data communications industries or those who make use of data transfer communications networks as part of their work.
Multi Carrier Spread Spectrum
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Author : Khaled Fazel
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Multi Carrier Spread Spectrum written by Khaled Fazel and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Technology & Engineering categories.
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.