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A Novel Transceiver Architecture For Making Polar Codes Work Over Multipath Fading Channels As They Do Over Awgn Channels
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Book Synopsis A Novel Transceiver Architecture for Making Polar Codes Work Over Multipath Fading Channels as They Do Over Awgn Channels by : Jehad M. Hamamreh
Download or read book A Novel Transceiver Architecture for Making Polar Codes Work Over Multipath Fading Channels as They Do Over Awgn Channels written by Jehad M. Hamamreh and published by Wireless Innovations. This book was released on 2019-03-22 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polar codes, recently accepted for adoption in 5G standard due to their excellent performance at a very low complexity compared to other competitive schemes in the literature, are deemed to be a strong candidate for the Internet of Things (IoT) applications as well due to meeting their requirements. However, since polar codes construction is naturally channel-dependent, there has recently been an increasing interest in addressing the challenge of making polar codes work in realistic fading environments as they do in a binary symmetric channel (BSC). Recent studies on polar codes for fading channels have mainly focused on constructing new specific polar codes suitable to particular fading channels. This results in a non-universal code structure, leading to continuous changes in the code structure based on the channel, which is not desirable in practice. To address this problem, we develop and propose a novel transceiver architecture which enables using the polar coding design of a binary input additive white Gaussian noise (BI-AWGN) channel for multi-path fading channels without causing any changes in the structure of the encoder and decoder sides. This is made possible by eliminating the channel fading effect so that a net AWGN channel can be seen at the input of a simple successive cancellation decoder (SCD). The novelty of the proposed solution lies in using a channel-based orthonormal transformation with optimal power allocation at the transmitter and another transformation at the receiver to make the net, effective channel seen by the SCD very similar to an AWGN channel. The obtained results show that the proposed design makes the bit error rate (BER) performance of polar codes over a frequency selective fading channel the same as that over an AWGN channel. As an additional great advantage, the proposed design is found to be capable of providing confidentiality against eavesdropping receivers (i.e., unintended users) at the physical layer. Particularly, wireless physical layer security is delivered by the proposed scheme because of the fact that the transmitted data blocks are designed based on the channel of the legitimate receiver, which is naturally different from that of an eavesdropper, who is normally located several wavelengths away from the legitimate receiver and thus experiencing a different channel.==========================================================This short-length e-book is meant for students (master and Ph.D.), researchers, engineers, practitioners, and instructors who are interested in wireless communication and signal processing. You should have a fair understanding of digital communication systems, linear algebra, random variables, and channel coding to begin with.
Book Synopsis Polar Codes for Rayleigh Fading Channels by : Oguzkan Akbel
Download or read book Polar Codes for Rayleigh Fading Channels written by Oguzkan Akbel and published by . This book was released on 2016 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polar codes are recently invented error control coding scheme by Erdal Arikan which are provably can achieve Shannon's Capacity for binary symmetric discrete memoryless channels. According to Shannon any coding scheme can achieve the capacity, but until now none of them did. Therefore, the general idea about the coding schemes was any coding scheme can achieve the capacity except the known ones. Erdal Arikan invented a new coding scheme by polarizing the channel and creating artificial ones which are completely noisy or reliable. Therefore, one can send the data from the reliable channels and the coding scheme will achieve the Shannon's Capacity. We show for additive white Gaussian noise, Rayleigh fading environment and fast fading OFDM channels, we can find almost completely reliable channels. Considering ununiversality of polar codes we use certain SNR levels for range of SNRs. Next, we show our results about the complexity of the algorithm. At the and we will introduce an end to end simulation of polar codes in Rayleigh multipath channel.
Book Synopsis Kernels of Polar Codes and Their Applications to Wireless Channels, and Joint Source and Channel Coding Based on LDPC Codes by : Hsien-Ping Lin
Download or read book Kernels of Polar Codes and Their Applications to Wireless Channels, and Joint Source and Channel Coding Based on LDPC Codes written by Hsien-Ping Lin and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation contains three topics: Polar codes with optimal exponents based on linear and nonlinear binary kernels of sizes up to 16, a design of rate-compatible polar codes, and a new proposed structure of joint source and channel coding based on low-density-parity-check (LDPC) codes. Polar codes are proposed by Arıkan with construction based on a linear kernel of dimension 2 with polarizing properties. The performance of a polar code is characterized asymptotically in terms of the exponent of its kernel. In this dissertation, constructions of linear and nonlinear binary kernels of dimensions up to 16 are presented. The constructed kernels are proved to have maximum exponents except in the case of nonlinear kernels of dimension 12 where we show that there exists only one possible exponent greater than that of the presented construction. From the results, the minimum dimension where a linear kernel with exponent greater than 0.5, the exponent of the linear kernel proposed by Arıkan, is 15, while this minimum dimension is 14 for nonlinear kernels. We also found that there is a linear kernel with maximum exponent up to dimension 11. The kernels of dimensions 13, 14, 15 with maximum exponents, although nonlinear over GF(2), are shown to be Z4-linear or Z2Z4-linear. In addition to exploring the asymptotic behavior of polar codes, we propose a design of finite block length rate-compatible polar codes suitable for HARQ communications. The central feature of the proposed design is established on the puncturing order chosen with low complexity on a base code of short length, which is then extended to the desired length. With the designed puncturing order, a practical rate-matching system which can be adjusted to any desired rate through puncturing or repetition under polarization is suggested. The proposed rate-matching system combines a channel interleaver and a bit-mapping procedure to preserve the polarization of the rate-compatible polar code family under bit-interleaved coded modulation systems. Simulation results on AWGN and fast fading channels with different modulation orders in both Chase combining and incremental redundancy HARQ communications are listed. For the third topic, we investigate a joint source and channel LDPC coding scheme in which the source compression and the channel coding matrices are designed jointly as two submatrices of a sparse matrix H. The sparse matrix H is constructed algebraically with a structure free of cycles of length 4 and serves as the parity-check matrix for joint decoding of the channel output symbols and untransmitted source symbols. The integrated design of the source and channel coding matrices strengthens the information exchange between the source symbols and the channel output parity-check symbols, which provides a good waterfall error performance of the coded system and low error-foor.
Book Synopsis Adaptive Digital Transceiver for Rayleigh Fading Channels by : Jeffery R. Hughes
Download or read book Adaptive Digital Transceiver for Rayleigh Fading Channels written by Jeffery R. Hughes and published by . This book was released on 2003 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents an adaptive modulation scheme using a Walsh-code modulator. The Walsh-code modulator consists of a dynamic demultiplexer and predetermined sets of orthogonal Walsh-Hadamard codes. The demultiplexer can demultiplex the input bit stream into a maximum of thirty-two sub-streams. The Walsh- Hadamard codes are used to spread the spectrum of the demultiplexed sub-streams. The Walsh-code modulator produces a multi-level pulse amplitude modulated (PAM) signal by summing the spread sub-streams. The number of levels contained in the constellation of the PAM signal varies, based on the number of demultiplexed substreams. The error rate performance of different constellations produced by the Walsh-code modulator, differ when transmitted through a Rayleigh fading plus additive white Gaussian noise (AWGN) channel. As the level of fading experienced in the channel fluctuates, a desired level of error rate performance can be maintained by switching constellations, while trying to use the maximum number of sub-streams, or links, to transmit the data. Simulation results show the performance of several constellations when transmitted through an AWGN channel and a Rayleigh fading plus AWGN channel. Also, mapping of the PAM signal onto a quadrature amplitude modulation (QAM) constellation, in order to improve the performance of the system is discussed. It is found that for a Rayleigh fading plus AWGN channel, at a given error performance level, the amount of gain in signal-to-noise ratio (SNR), from the largest constellation to the smallest constellation, is 8dB for the symbol error rate (SER) and 14dB for the bit error rate (BER).
Book Synopsis Space Time Transceiver Design Over Multipath Fading Channels by :
Download or read book Space Time Transceiver Design Over Multipath Fading Channels written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Smart Cities Performability, Cognition, & Security by : Fadi Al-Turjman
Download or read book Smart Cities Performability, Cognition, & Security written by Fadi Al-Turjman and published by Springer. This book was released on 2019-05-21 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides knowledge into the intelligence and security areas of smart-city paradigms. It focuses on connected computing devices, mechanical and digital machines, objects, and/or people that are provided with unique identifiers. The authors discuss the ability to transmit data over a wireless network without requiring human-to-human or human-to-computer interaction via secure/intelligent methods. The authors also provide a strong foundation for researchers to advance further in the assessment domain of these topics in the IoT era. The aim of this book is hence to focus on both the design and implementation aspects of the intelligence and security approaches in smart city applications that are enabled and supported by the IoT paradigms. Presents research related to cognitive computing and secured telecommunication paradigms; Discusses development of intelligent outdoor monitoring systems via wireless sensing technologies; With contributions from researchers, scientists, engineers and practitioners in telecommunication and smart cities.
Book Synopsis Channel Coding Techniques for Wireless Communications by : K. Deergha Rao
Download or read book Channel Coding Techniques for Wireless Communications written by K. Deergha Rao and published by Springer Nature. This book was released on 2019-11-22 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the latest channel coding techniques, MIMO systems, and 5G channel coding evolution. It provides a comprehensive overview of channel coding, covering modern techniques such as turbo codes, low-density parity-check (LDPC) codes, space–time coding, polar codes, LT codes, and Raptor codes as well as the traditional codes such as cyclic codes, BCH, RS codes, and convolutional codes. It also explores MIMO communications, which is an effective method for high-speed or high-reliability wireless communications. It also examines the evolution of 5G channel coding techniques. Each of the 13 chapters features numerous illustrative examples for easy understanding of the coding techniques, and MATLAB-based programs are integrated in the text to enhance readers’ grasp of the underlying theories. Further, PC-based MATLAB m-files for illustrative examples are included for students and researchers involved in advanced and current concepts of coding theory.
Book Synopsis Fundamentals of Wireless Communication by : David Tse
Download or read book Fundamentals of Wireless Communication written by David Tse and published by Cambridge University Press. This book was released on 2005-05-26 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook takes a unified view of the fundamentals of wireless communication and explains cutting-edge concepts in a simple and intuitive way. An abundant supply of exercises make it ideal for graduate courses in electrical and computer engineering and it will also be of great interest to practising engineers.
Book Synopsis OFDM Transceiver System Design Over Multipath Frequency-selective Fading Channel Using Joint Carrier Synchronization and Channel Equalization Algorithm and Its CORDIC-based VLSI Architecture Design by : 吳志峰
Download or read book OFDM Transceiver System Design Over Multipath Frequency-selective Fading Channel Using Joint Carrier Synchronization and Channel Equalization Algorithm and Its CORDIC-based VLSI Architecture Design written by 吳志峰 and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis LDPC-coded Modulation for Transmission Over AWGN and Flat Rayleigh Fading Channels by : Rui Yang
Download or read book LDPC-coded Modulation for Transmission Over AWGN and Flat Rayleigh Fading Channels written by Rui Yang and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La modulation codée est une technique de transmission efficace en largeur de bande qui intègre le codage de canal et la modulation en une seule entité et ce, afin d'améliorer les performances tout en conservant la même efficacité spectrale comparé à la modulation non codée. Les codes de parité à faible densité (low-density parity-check codes, LDPC) sont les codes correcteurs d'erreurs les plus puissants et approchent la limite de Shannon, tout en ayant une complexité de décodage relativement faible. L'idée de combiner les codes LDPC et la modulation efficace en largeur de bande a donc été considérée par de nombreux chercheurs. Dans ce mémoire, nous étudions une méthode de modulation codée à la fois puissante et efficace en largeur de bande, ayant d'excellentes performances de taux d'erreur binaire et une complexité d'implantation faible. Ceci est réalisé en utilisant un encodeur rapide, un décoder de faible complexité et aucun entrelaceur. Les performances du système proposé pour des transmissions sur un canal additif gaussien blanc et un canal à évanouissements plats de Rayleigh sont évaluées au moyen de simulations. Les résultats numériques montrent que la méthode de modulation codée utilisant la modulation d'amplitude en quadrature à M niveaux (M-QAM) peut atteindre d'excellentes performances pour toute une gamme d'efficacité spectrale. Une autre contribution de ce mémoire est une méthode simple pour réaliser une modulation codée adaptative avec les codes LDPC pour la transmission sur des canaux à évanouissements plats et lents de Rayleigh. Dans cette méthode, six combinaisons de paires encodeur modulateur sont employées pour une adaptation trame par trame. L'efficacité spectrale moyenne varie entre 0.5 et 5 bits/s/Hz lors de la transmission. Les résultats de simulation montrent que la modulation codée adaptative avec les codes LDPC offre une meilleure efficacité spectrale tout en maintenant une performance d'erreur acceptable.
Book Synopsis Understanding LTE with MATLAB by : Houman Zarrinkoub
Download or read book Understanding LTE with MATLAB written by Houman Zarrinkoub and published by John Wiley & Sons. This book was released on 2014-01-28 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to technical details related to the Physical Layer of the LTE standard with MATLAB® The LTE (Long Term Evolution) and LTE-Advanced are among the latest mobile communications standards, designed to realize the dream of a truly global, fast, all-IP-based, secure broadband mobile access technology. This book examines the Physical Layer (PHY) of the LTE standards by incorporating three conceptual elements: an overview of the theory behind key enabling technologies; a concise discussion regarding standard specifications; and the MATLAB® algorithms needed to simulate the standard. The use of MATLAB®, a widely used technical computing language, is one of the distinguishing features of this book. Through a series of MATLAB® programs, the author explores each of the enabling technologies, pedagogically synthesizes an LTE PHY system model, and evaluates system performance at each stage. Following this step-by-step process, readers will achieve deeper understanding of LTE concepts and specifications through simulations. Key Features: • Accessible, intuitive, and progressive; one of the few books to focus primarily on the modeling, simulation, and implementation of the LTE PHY standard • Includes case studies and testbenches in MATLAB®, which build knowledge gradually and incrementally until a functional specification for the LTE PHY is attained • Accompanying Web site includes all MATLAB® programs, together with PowerPoint slides and other illustrative examples Dr Houman Zarrinkoub has served as a development manager and now as a senior product manager with MathWorks, based in Massachusetts, USA. Within his 12 years at MathWorks, he has been responsible for multiple signal processing and communications software tools. Prior to MathWorks, he was a research scientist in the Wireless Group at Nortel Networks, where he contributed to multiple standardization projects for 3G mobile technologies. He has been awarded multiple patents on topics related to computer simulations. He holds a BSc degree in Electrical Engineering from McGill University and MSc and PhD degrees in Telecommunications from the Institut Nationale de la Recherche Scientifique, in Canada. www.wiley.com/go/zarrinkoub
Book Synopsis Digital Communications 1 by : Didier Le Ruyet
Download or read book Digital Communications 1 written by Didier Le Ruyet and published by John Wiley & Sons. This book was released on 2015-10-12 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The communication chain is constituted by a source and a recipient, separated by a transmission channel which may represent a portion of cable, an optical fiber, a radio channel, or a satellite link. Whatever the channel, the processing blocks implemented in the communication chain have the same foundation. This book aims to itemize. In this first volume, after having presented the base of the information theory, we will study the source coding techniques with and without loss. Then we analyze the correcting codes for block errors, convutional and concatenated used in current systems.
Book Synopsis Software-Defined Radio for Engineers by : Alexander M. Wyglinski
Download or read book Software-Defined Radio for Engineers written by Alexander M. Wyglinski and published by Artech House. This book was released on 2018-04-30 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the popular Artech House classic, Digital Communication Systems Engineering with Software-Defined Radio, this book provides a practical approach to quickly learning the software-defined radio (SDR) concepts needed for work in the field. This up-to-date volume guides readers on how to quickly prototype wireless designs using SDR for real-world testing and experimentation. This book explores advanced wireless communication techniques such as OFDM, LTE, WLA, and hardware targeting. Readers will gain an understanding of the core concepts behind wireless hardware, such as the radio frequency front-end, analog-to-digital and digital-to-analog converters, as well as various processing technologies. Moreover, this volume includes chapters on timing estimation, matched filtering, frame synchronization message decoding, and source coding. The orthogonal frequency division multiplexing is explained and details about HDL code generation and deployment are provided. The book concludes with coverage of the WLAN toolbox with OFDM beacon reception and the LTE toolbox with downlink reception. Multiple case studies are provided throughout the book. Both MATLAB and Simulink source code are included to assist readers with their projects in the field.
Book Synopsis Space-Time Coding by : Hamid Jafarkhani
Download or read book Space-Time Coding written by Hamid Jafarkhani and published by Cambridge University Press. This book was released on 2005-09-22 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the fundamental principles of space-time coding for wireless communications over multiple-input multiple-output (MIMO) channels, and sets out practical coding methods for achieving the performance improvements predicted by the theory. Starting with background material on wireless communications and the capacity of MIMO channels, the book then reviews design criteria for space-time codes. A detailed treatment of the theory behind space-time block codes then leads on to an in-depth discussion of space-time trellis codes. The book continues with discussion of differential space-time modulation, BLAST and some other space-time processing methods and the final chapter addresses additional topics in space-time coding. The theory and practice sections can be used independently of each other. Written by one of the inventors of space-time block coding, this book is ideal for a graduate student familiar with the basics of digital communications, and for engineers implementing the theory in real systems.
Book Synopsis Wireless Communications by : Andrea Goldsmith
Download or read book Wireless Communications written by Andrea Goldsmith and published by Cambridge University Press. This book was released on 2005-08-08 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless technology is a truly revolutionary paradigm shift, enabling multimedia communications between people and devices from any location. It also underpins exciting applications such as sensor networks, smart homes, telemedicine, and automated highways. This book provides a comprehensive introduction to the underlying theory, design techniques and analytical tools of wireless communications, focusing primarily on the core principles of wireless system design. The book begins with an overview of wireless systems and standards. The characteristics of the wireless channel are then described, including their fundamental capacity limits. Various modulation, coding, and signal processing schemes are then discussed in detail, including state-of-the-art adaptive modulation, multicarrier, spread spectrum, and multiple antenna techniques. The concluding chapters deal with multiuser communications, cellular system design, and ad-hoc network design. Design insights and tradeoffs are emphasized throughout the book. It contains many worked examples, over 200 figures, almost 300 homework exercises, over 700 references, and is an ideal textbook for students.
Book Synopsis Principles of Mobile Communication by : Gordon L. Stüber
Download or read book Principles of Mobile Communication written by Gordon L. Stüber and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Mobile Communication provides an authoritative treatment of the fundamentals of mobile communications, one of the fastest growing areas of the modern telecommunications industry. The book stresses the fundamentals of mobile communications engineering that are important for the design of any mobile system. Less emphasis is placed on the description of existing and proposed wireless standards. This focus on fundamental issues should be of benefit not only to students taking formal instruction but also to practising engineers who are likely to already have a detailed familiarity with the standards and are seeking to deepen their knowledge of this important field. The book stresses mathematical modeling and analysis, rather than providing a qualitative overview. It has been specifically developed as a textbook for graduate level instruction and a reference book for practising engineers and those seeking to pursue research in the area. The book contains sufficient background material for the novice, yet enough advanced material for a sequence of graduate level courses. Principles of Mobile Communication treats a variety of contemporary issues, many of which have been treated before only in the journals. Some material in the book has never appeared before in the literature. The book provides an up-to-date treatment of the subject area at a level of detail that is not available in other books. Also, the book is unique in that the whole range of topics covered is not presently available in any other book. Throughout the book, detailed derivations are provided and extensive references to the literature are made. This is of value to the reader wishing to gain detailed knowledge of a particular topic.
Book Synopsis Fundamentals of Digital Communication by : Upamanyu Madhow
Download or read book Fundamentals of Digital Communication written by Upamanyu Madhow and published by Cambridge University Press. This book was released on 2008-03-06 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a concise presentation of the concepts underlying the design of digital communication systems, without the detail that can overwhelm students. Many examples, from the basic to the cutting-edge, show how the theory is used in the design of modern systems and the relevance of this theory will motivate students. The theory is supported by practical algorithms so that the student can perform computations and simulations. Leading edge topics in coding and wireless communication make this an ideal text for students taking just one course on the subject. Fundamentals of Digital Communications has coverage of turbo and LDPC codes in sufficient detail and clarity to enable hands-on implementation and performance evaluation, as well as 'just enough' information theory to enable computation of performance benchmarks to compare them against. Other unique features include space-time communication and geometric insights into noncoherent communication and equalization.
