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OFDM and MC-CDMA: A Primer
By: Lajos Hanzo , Thomas KellereBook Publisher: John Wiley & Sons
Imprint: Wiley-IEEE Press
Format: Adobe Encrypted (DRM)
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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.
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| Title of Technology eBook: OFDM and MC-CDMA: A Primer | |
| Release Date: 01-11-2007 | |
| Publisher: Wiley-IEEE Press |
This eBook download is available in the following formats:
| Parent title | OFDM and MC-CDMA: A Primer |
|---|---|
| Encrypted (DRM) | Yes |
| SKU | 9780470031377 |
| File size | 12285 |
| Security | n/a |
| Printing | Not allowed |
| Copying | Not allowed |
| Read aloud | No Sys requirements Download reader |
| Devices | Samsung Tablet, Apple Ipad & Iphone, Barnes & Noble Nook, Kobo eReader, Aluratek Libre, Iliad, Nokia, Blackberry, Hanlin |
| Note | Excellent navigation features are available via Adobe such as bookmarks and a quick access table of contents. Text search is easily accessible. An Adobe DRM-protected file is different than a pdf file in that it uses Adobe DRM (Digital Rights Management) technology, which authors and publishers use to protect their content from illegal online distribution and to set certain privileges such as restrictions on copying and printing. |
OFDM and MC-CDMA: A Primer
Chapter One
Introduction
1.1 Motivation of the Book
Whilst the concept of Orthogonal Frequency Division Multiplexing (OFDM) has been known since 1966, it only reached sufficient maturity for employment in standard systems during the 1990s. OFDM exhibits numerous advantages over the family of more conventional serial modem schemes, although it is only natural that it also imposes a number of disadvantages. The discussion of the associated design tradeoffs of OFDM and Multi-Carrier Code Division Multiple Access (MC-CDMA) systems constitutes the topic of this monograph and in this context our discussions include the following fundamental issues:
1) A particularly attractive feature of OFDM systems is that they are capable of operating without a classic channel equaliser, when communicating over dispersive transmission media, such as wireless channels, while conveniently accommodating the time- and frequency-domain channel quality fluctuations of the wireless channel.
Explicitly, the channel SNR variation versus both time and frequency of an indoor wireless channel is shown in a three-dimensional form in Figure 1.1 versus both time and frequency, which suggests that OFDM constitutes a convenient framework for accommodating the channel quality fluctuations of the wireless channel, as will be briefly augmented below. This channel transfer function was recorded for the channel impulse response of Figure 1.2, by simply transforming the impulse response to the frequency domain at regular time intervals, while its taps fluctuated according to the Rayleigh distribution.
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