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Multi-Carrier Communication Systems with Examples in MATLAB: A New Perspective



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Author: Emad Hassan

Publisher: CRC Press

Genres:

Publish Date: October 10, 2015

ISBN-10: 1498735320

Pages: 308

File Type: PDF, AZW4

Language: English

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Book Preface

Next-generation wireless communication systems require higher data rate transmission in order to meet the higher demand of quality services and to support wideband wireless services such as high-definition TV, mobile videophones, video conferencing, and high-speed Internet access. Multi-carrier transmission techniques are attractive for wideband communications because they effectively transform the frequency-selective fading channel into a flat fading channel. Orthogonal frequency division multiplexing (OFDM) is one of the most well-known examples of multi carrier transmission techniques. OFDM provides greater immunity to multipath fading and impulsive noise and eliminates the need for complicated equalizers. In addition, the combination of multiple-input-multiple-output (MIMO) signal processing techniques with OFDM is regarded as a promising solution to give a good performance and support high data rate transmission in next-generation wireless communication systems.

However, OFDM communication systems have two primary drawbacks. The first is the high sensitivity to carrier frequency offsets and phase noise. The second, and the major aspect we are concerned with, is the high peak-to-average power ratio (PAPR) of the transmitted signals. The high PAPR makes OFDM sensitive to nonlinear distortion caused by the transmitter power amplifier, hence leading to degradation in system performance. This book provides new solutions for these problems, and its main objective is to enhance the performance of multi-carrier systems


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