Frequency-domain Multiuser Detection for CDMA Systems

Frequency-domain Multiuser Detection for CDMA Systems PDF Author: Paulo Silva
Publisher: River Publishers
ISBN: 8792329705
Category : Science
Languages : en
Pages : 265

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Book Description
In Frequency-Domain Multiuser Detection for CDMA Systems the use of PA block transmission is considered in the context of both DS (Direct Sequence) and MC (Multicarrier) CDMA schemes.

Frequency-domain Multiuser Detection for CDMA Systems

Frequency-domain Multiuser Detection for CDMA Systems PDF Author: Paulo Silva
Publisher: River Publishers
ISBN: 8792329705
Category : Science
Languages : en
Pages : 265

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Book Description
In Frequency-Domain Multiuser Detection for CDMA Systems the use of PA block transmission is considered in the context of both DS (Direct Sequence) and MC (Multicarrier) CDMA schemes.

Multi-Carrier Spread-Spectrum & Related Topics

Multi-Carrier Spread-Spectrum & Related Topics PDF Author: Khaled Fazel
Publisher: Springer Science & Business Media
ISBN: 1475735693
Category : Technology & Engineering
Languages : en
Pages : 376

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Book Description
Multi-Carrier Spread-Spectrum has been deeply studied and new alternative solutions have been proposed. This book edits the newest contributions and research results in this new field presented at the Third International Workshop on MC-SS & Related Topics, held in Oberpfaffenhofen, Germany.

Multi-Carrier Spread Spectrum & Related Topics

Multi-Carrier Spread Spectrum & Related Topics PDF Author: Khaled Fazel
Publisher: Springer Science & Business Media
ISBN: 1461544637
Category : Technology & Engineering
Languages : en
Pages : 368

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Book Description
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.

Short-Range Wireless Communications

Short-Range Wireless Communications PDF Author: Rolf Kraemer
Publisher: John Wiley & Sons
ISBN: 9780470740132
Category : Technology & Engineering
Languages : en
Pages : 368

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Book Description
This unique book reviews the future developments of short-range wireless communication technologies Short-Range Wireless Communications: Emerging Technologies and Applications summarizes the outcomes of WWRF Working Group 5, highlighting the latest research results and emerging trends on short-range communications. It contains contributions from leading research groups in academia and industry on future short-range wireless communication systems, in particular 60 GHz communications, ultra-wide band (UWB) communications, UWB radio over optical fiber, and design rules for future cooperative short-range communications systems. Starting from a brief description of state-of-the-art, the authors highlight the perspectives and limits of the technologies and identify where future research work is going to be focused. Key Features: Provides an in-depth coverage of wireless technologies that are about to start an evolution from international standards to mass products, and that will influence the future of short-range communications Offers a unique and invaluable visionary overview from both industry and academia Identifies open research problems, technological challenges, emerging technologies, and fundamental limits Covers ultra-high speed short-range communication in the 60 GHz band, UWB communication, limits and challenges, cooperative aspects in short-range communication and visible light communications, and UWB radio over optical fiber This book will be of interest to research managers, R&D engineers, lecturers and graduate students within the wireless communication research community. Executive managers and communication engineers will also find this reference useful.

Multi-Carrier Spread-Spectrum

Multi-Carrier Spread-Spectrum PDF Author: Khaled Fazel
Publisher: Springer Science & Business Media
ISBN: 9781402044359
Category : Computers
Languages : en
Pages : 528

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Book Description
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 Multi-Carrier Spread-Spectrum is to edit the ensemble of the newest contributions and research results in this new field that have been presented during the 5th International Workshop on Multi-Carrier Spread-Spectrum (MC-SS 2005), held in Oberpfaffenhofen, Germany.

CDMA

CDMA PDF Author: Andrew J. Viterbi
Publisher: Prentice Hall
ISBN: 9780201633740
Category : Technology & Engineering
Languages : en
Pages : 245

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Book Description
Spread spectrum multiple access communication, known commercially as CDMA (Code Division Multiple Access), is a driving technology behind the rapidly advancing personal communications industry. Its greater bandwidth efficiency and multiple access capabilities make it the leading technology for relieving spectrum congestion caused by the explosion in popularity of cellular mobile and fixed wireless telephones and wireless data terminals. Written by a leader in the creation of CDMA and an internationally recognized authority on wireless digital communication, this book gives you the technical information you need. It presents the fundamentals of digital communications and covers all aspects of commercial direct-sequence spread spectrum technology, incorporating both physical-level principles and network concepts. You will find detailed information on signal generation, synchronization, modulation, and coding of direct-sequence spread spectrum signals. In addition, the book shows how these physical layer functions relate to link and network properties involving cellular coverage, Erlang capacity, and network control. With this book, you will attain a deeper understanding of personal communications system concepts and will be better equipped to develop systems and products at the forefront of the personal wireless communications market.

Scientific Canadian Mechanics' Magazine and Patent Office Record

Scientific Canadian Mechanics' Magazine and Patent Office Record PDF Author: Canada. Patent Office
Publisher:
ISBN:
Category : Copyright
Languages : en
Pages : 1070

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Book Description


Cooperative Wireless Communications

Cooperative Wireless Communications PDF Author: Yan Zhang
Publisher: CRC Press
ISBN: 1420064703
Category : Computers
Languages : en
Pages : 518

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Book Description
Cooperative devices and mechanisms are increasingly important to enhance the performance of wireless communications and networks, with their ability to decrease power consumption and packet loss rate and increase system capacity, computation, and network resilience. Considering the wide range of applications, strategies, and benefits associated wit

5G and Beyond

5G and Beyond PDF Author: Xingqin Lin
Publisher: Springer Nature
ISBN: 3030581977
Category : Technology & Engineering
Languages : en
Pages : 538

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Book Description
This book provides an accessible and comprehensive tutorial on the key enabling technologies for 5G and beyond, covering both the fundamentals and the state-of-the-art 5G standards. The book begins with a historical overview of the evolution of cellular technologies and addresses the questions on why 5G and what is 5G. Following this, six tutorial chapters describe the fundamental technology components for 5G and beyond. These include modern advancements in channel coding, multiple access, massive multiple-input and multiple-output (MIMO), network densification, unmanned aerial vehicle enabled cellular networks, and 6G wireless systems. The second part of this book consists of five chapters that introduce the basics of 5G New Radio (NR) standards developed by 3GPP. These include 5G architecture, protocols, and physical layer aspects. The third part of this book provides an overview of the key 5G NR evolution directions. These directions include ultra-reliable low-latency communication (URLLC) enhancements, operation in unlicensed spectrum, positioning, integrated access and backhaul, air-to-ground communication, and non-terrestrial networks with satellite communication.

2018 16th IEEE International New Circuits and Systems Conference (NEWCAS)

2018 16th IEEE International New Circuits and Systems Conference (NEWCAS) PDF Author: IEEE Staff
Publisher:
ISBN: 9781538648605
Category :
Languages : en
Pages :

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Book Description
NEWCAS2018 will encompass a wide range of special sessions and keynote talks given by prominent experts covering key areas of research in microsystems in order to provide all attendees a unique forum for the exchange of ideas and results The program of the conference will be tailored to reflect the wide spectrum of topics and research interest shared by researchers in this field