Orthogonal frequency-division multiplexing (OFDM) is a method of
digital modulation in which a signal is split into several
narrowband channels at different frequencies.
CDMA is a form of multiplexing, which allows numerous signals to
occupy a single transmission channel, optimising the use of
available bandwidth. Multiplexing is sending multiple signals
or streams of information on a carrier at the same time in the form
of a single, complex signal and then recovering the separate
signals at the receiving end.
Multi-Carrier (MC) CDMA is a combined technique of Direct
Sequence (DS) CDMA (Code Division Multiple Access) and OFDM
techniques. It applies spreading sequences in the frequency
domain.
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.
This technical in-depth book is unique in its 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
* Portrays the entire body of knowledge currently available on
OFDM
* Provides the first complete treatment of OFDM, MIMO(Multiple
Input Multiple Output)-OFDM and MC-CDMA
* Considers the benefits of channel coding and space time coding
in the context of various application examples and features
numerous complete system design examples
* Converts the lessons of Shannon’s information theory into
design principles applicable to practical wireless systems
* Combines the benefits of a textbook with a research monograph
where the depth of discussions progressively increase throughout
the book
This all-encompassing self-contained treatment will appeal to
researchers, postgraduate students and academics, practising
research and development engineers working for wireless
communications and computer networking companies and senior
undergraduate students and technical managers.
İçerik tablosu
About the Authors.
Other Wiley and IEEE Press Books on Related Topics.
Acknowledgments.
1. Introduction.
I OFDM System Design.
2. Introduction to OFDM.
3. OFDM Transmission over Gaussian Channels.
4. OFDM Transmission over Wideband Channels.
5. Time and Frequency Domain Synchronisation.
6. Adaptive Single- and Multi-User OFDM.
7. Block-Coded Adaptive OFDM.
II OFDM versus MC-CDMA Systems, Their Spreading Codes and Peak
Factor Reduction.
8. OFDM versus MC-CDMA.
9. Basic Spreading Sequences.
10. MC-CDMA Performance in Synchronous Environments.
11. Advanced Peak Factor Reduction Techniques.
12. Adaptive Modulation for OFDM and MC-CDMA.
13. Successive Partial Despreading Based Multi-Code MC-CDMA.
III Advanced Topics: Channel Estimation and Multi-user OFDM
Systems.
List of General Symbols.
14. Pilot-Assisted Channel Estimation for Single-User OFDM.
15. Decision-Directed Channel Estimation for Single-User
OFDM.
16. Channel Estimation for Multi-User OFDM.
17. Detection Techniques for Multi-User SDMA-OFDM.
18. OFDM-Based Wireless Video System Design.
19. Conclusion and Further Research Problems.
Glossary.
Bibliography.
Subject Index.
Author Index.
Yazar hakkında
Lajos Hanzo received his degree in electronics in 1976 and his
doctorate in 1983. During his career in telecommunications he has
held various research and academic posts in Hungary, Germany and
the UK. Since 1986 he has been with the Department of
Electronics and Computer Science, University of Southampton, UK,
where he holds the chair in telecommunications. Lajos is also an
IEEE Distinguished Lecturer of both the Communications as well as
the Vehicular Technology Society and a Fellow of the IEE.
Matthias Münster was awarded the Dipl. Ing. degree by the
RWTH Aachen, Germany and after graduation he embarked on
postgraduate research at the University of Southampton, where he
completed his Ph D in mobile communications on 2002. His areas of
interest include adaptive multiuser OFDM transmission, wideband
channel estimation, multiuser detection and a range of related
signal processing aspects.
Byoung-Jo Choi received his BSc and MSc degrees in Electrical
Engineering from KAIST, Korea, in 1990 and 1992, respectively. He
was awarded his Ph D degree in Mobile Communications at the
University of Southampton, UK, where he was a postdoctoral research
assistant. His current research interests are related to mobile
communication systems design with emphasis on adaptive modulation
aided OFDM, MC-CDMA and W-CDMA.
Thomas Keller studied Electrical Engineering at the University
of Karlsruhe, Ecole Superieure d’Ingenieurs en Electronique et
Electrotechnique, Paris and the University of Southampton. He
completed his Ph D at the University of Southampton and his areas of
interest include adaptive OFDM transmission, wideband channel
estimation, CDMA and error correction coding.
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