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Multi-Carrier and Spread Spectrum Systems

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Release : 2008-09-15
Genre : Technology & Engineering
Kind : eBook
Book Rating : 239/5 ( reviews)

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Book Synopsis Multi-Carrier and Spread Spectrum Systems by : Khaled Fazel

Download or read book Multi-Carrier and Spread Spectrum Systems written by Khaled Fazel. This book was released on 2008-09-15. Available in PDF, EPUB and Kindle. Book excerpt: The technological progress in multi-carrier (MC) modulation led orthogonal frequency division multiplexing (OFDM) to become an important part of beyond 3G cellular mobile communication standards, including LTE and WiMAX. In addition, the flexibility offered by the spread spectrum (SS) and time division multiplexing (TDM) techniques motivated many researchers to investigate several MC combined multiple access schemes, such as MC-CDMA, OFDMA and MC-TDMA. These schemes benefit from the advantages of each sub-system and offer high flexibility, high spectral efficiency, simple detection strategies and narrow-band interference rejection capability. Multi-Carrier and Spread Spectrum Systems is one of the first books to describe and analyze the basic concepts of multi-carrier OFDM transmission and its combination with spread spectrum (MC-CDMA). The different architectures and detection strategies as well as baseband-related transceiver components are explained. This includes topics like FEC channel coding and decoding, modulation and demodulation (IFFT/FFT), digital I/Q-generation, time and frequency synchronisation, channel estimation, frequency domain equalization and RF aspects such as phase noise and non-linearity issues. Concrete examples of its applications for cellular mobile communication systems (B3G/4G) are given. Further derivatives of MC-SS (such as OFDMA, SS-MC-MA and DFT-spread OFDM) and their corresponding applications in the LTE, WiMAX, WLAN and DVB-RCT standards are detailed. Capacity and flexibility enhancements of multi-carrier OFDM systems by different MIMO diversity techniques such as space time/frequency coding (STC, SFC) and software defined radio concepts are also described. Written in a highly accessible manner this book provides a unique reference on the topics of multi-carrier and spread spectrum communications, assisting 4G engineers with their implementation. Fully updated new edition of successful text, including two new chapters on LTE and WiMAX Describes in detail new applications of OFDM in mobile communication standards Examines all multi-carrier spread spectrum schemes, with in-depth analysis, from theory to practice Introduces the essentials of important wireless standards based on multi-carrier/spread spectrum techniques.

Multi-Carrier Digital Communications

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Author :
Release : 2004-10-07
Genre : Computers
Kind : eBook
Book Rating : 757/5 ( reviews)

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Book Synopsis Multi-Carrier Digital Communications by : Ahmad R.S. Bahai

Download or read book Multi-Carrier Digital Communications written by Ahmad R.S. Bahai. This book was released on 2004-10-07. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Multi-Carrier Digital Communications: Theory and Applications of OFDM begins with a brief overview of multi-carrier communications. The authors then focus on the bandwidth efficient technology of OFDM, in particular the DSP techniques that have made the modulation format practical. Several chapters describe and analyze the sub-systems of an OFDM implementation, such as clipping, synchronization channel estimation, equalization, and coding. Analysis of performance over channels with various impairments is presented. The book continues with descriptions of three very important and diverse applications of OFDM that have been standardized and are now being deployed: ADSL, digital broadcasting, and wireless LANs for multi-Mbps communications. Finally, the book concludes with describing the OFDM-based multiple access techniques, ultra wideband technology, and WiMAX.

Multi-Carrier Spread-Spectrum & Related Topics

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Release : 2010-12-03
Genre : Technology & Engineering
Kind : eBook
Book Rating : 455/5 ( reviews)

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Book Synopsis Multi-Carrier Spread-Spectrum & Related Topics by : Khaled Fazel

Download or read book Multi-Carrier Spread-Spectrum & Related Topics written by Khaled Fazel. This book was released on 2010-12-03. Available in PDF, EPUB and Kindle. Book excerpt: 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

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Release : 2006-08-12
Genre : Technology & Engineering
Kind : eBook
Book Rating : 372/5 ( reviews)

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Book Synopsis Multi-Carrier Spread-Spectrum by : Khaled Fazel

Download or read book Multi-Carrier Spread-Spectrum written by Khaled Fazel. This book was released on 2006-08-12. Available in PDF, EPUB and Kindle. Book excerpt: Aims to edit the ensemble of the contributions and research results in this field that have been presented during the 5th International Workshop on Multi-Carrier Spread-Spectrum (MC-SS 2005), held in Oberpfaffenhofen, Germany.

Multi-Carrier Spread-Spectrum

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Author :
Release : 2013-11-11
Genre : Technology & Engineering
Kind : eBook
Book Rating : 02X/5 ( reviews)

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Book Synopsis Multi-Carrier Spread-Spectrum by : Khaled Fazel

Download or read book Multi-Carrier Spread-Spectrum written by Khaled Fazel. This book was released on 2013-11-11. Available in PDF, EPUB and Kindle. Book excerpt: 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.

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