Download or read book Advanced Hybrid ARQ Receivers for Broadband MIMO Communications written by Tarik Ait-Idir and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Hybrid-ARQ Receivers for Broadband MIMO Communications.

Download or read book Radio Communications written by Alessandro Bazzi and published by IntechOpen. This book was released on 2010-04-01 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decades the restless evolution of information and communication technologies (ICT) brought to a deep transformation of our habits. The growth of the Internet and the advances in hardware and software implementations modified our way to communicate and to share information. In this book, an overview of the major issues faced today by researchers in the field of radio communications is given through 35 high quality chapters written by specialists working in universities and research centers all over the world. Various aspects will be deeply discussed: channel modeling, beamforming, multiple antennas, cooperative networks, opportunistic scheduling, advanced admission control, handover management, systems performance assessment, routing issues in mobility conditions, localization, web security. Advanced techniques for the radio resource management will be discussed both in single and multiple radio technologies; either in infrastructure, mesh or ad hoc networks.

Download or read book Advanced hybrid ARQ receivers for broadband MIMO communications written by Houda Chafnaji and published by . This book was released on 2010 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: MIMO et hybrid-ARQ font partie des principales techniques qui permettent d’améliorer le taux de transmission ainsi que la qualité du lien sans fil. Dans les techniques MIMO, la dimension spatiale du canal MIMO est exploitée par l’utilisation de plusieurs antennes au niveau de l’émetteur et du récepteur. Cela se traduit par une amélioration de l’efficacité spectrale et/ou la qualité du lien. Les protocoles hybrid-ARQ constituent une importante source de diversité temporelle grâce à la combinaison du codage de canal avec l’ARQ. Ceci est réalisé à l’aide des techniques de combinaison où les paquets de données erronés sont conservés dans le récepteur pour aider à détecter/décoder les trames retransmises. Dans les communications MIMO large bande, la liaison sans fil MIMO souffre des interférences entre symboles causées par la propagation à trajets multiples. Cet effet peut être atténué en utilisant l’égalisation du canal et/ou l’hybrid-ARQ. Cette thèse porte sur la conception conjointe de la combinaison des paquets et de l’égalisation du canal pour les transmissions MIMO ARQ sur le canal large bande sans fil. Nous proposons une approche de combinaison itérative à faible complexité pour les transmissions MIMO ARQ où la combinaison de paquets est effectuée en échangeant l’information soft de façon itérative entre le combinateur à entrée soft et le décodeur SISO. L’approche de combinaison proposée est généralisée au cas des transmissions MIMO limitées par l’effet des interférences co-canal non connues. Nous proposons également deux algorithmes de combinaison pour les systèmes CDMA-MIMO où les transmissions multi-code souffrent de grave dégradation des performances due à la perte d’orthogonalité entre les codes. Dans le premier algorithme, l’égalisation et la combinaison des paquets sont accomplies conjointement au niveau chip. Dans le deuxième algorithme, l’égalisation au niveau chip et le désétalement sont effectués séparément pour chaque transmission, puis la combinaison des paquets est effectuée au niveau du démodulateur soft. Dans la dernière partie de cette thèse, nous nous concentrons sur la combinaison des paquets pour les systèmes à relais multiples et nous dérivons un modèle de communication de telle sorte que la destination peut voir les signaux reçus pendant les intervalles temporels du relayage comme des retransmissions directes à partir de la source. Le modèle de communication dérivé est d’une grande importance car il permet d’effectuer la combinaison des paquets conjointement avec l’égalisation en utilisant la notion des antennes virtuelles au niveau de la réception.

Download or read book Radio Communications written by Alessandro Bazzi and published by BoD – Books on Demand. This book was released on 2010-04-01 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decades the restless evolution of information and communication technologies (ICT) brought to a deep transformation of our habits. The growth of the Internet and the advances in hardware and software implementations modified our way to communicate and to share information. In this book, an overview of the major issues faced today by researchers in the field of radio communications is given through 35 high quality chapters written by specialists working in universities and research centers all over the world. Various aspects will be deeply discussed: channel modeling, beamforming, multiple antennas, cooperative networks, opportunistic scheduling, advanced admission control, handover management, systems performance assessment, routing issues in mobility conditions, localization, web security. Advanced techniques for the radio resource management will be discussed both in single and multiple radio technologies; either in infrastructure, mesh or ad hoc networks.

Download or read book ARQ Techniques for MIMO Communication Systems written by Zhihong Ding and published by . This book was released on 2006 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: A type-I hybrid-ARQ error control is used to illustrate the throughput gain of employing ARQ error control into MIMO communication systems. With the channel information known at both the transmitter and the receiver, the MIMO channel is converted into a set of parallel independent subchannels. The performance of the type-I hybrid-ARQ error control is presented. Simulation results show the throughput gain of using an ARQ scheme in MIMO communication systems.

Download or read book 4G LTE LTE Advanced for Mobile Broadband written by Erik Dahlman and published by Academic Press. This book was released on 2013-10-07 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on LTE with full updates including LTE-Advanced (Release-11) to provide a complete picture of the LTE system. Detailed explanations are given for the latest LTE standards for radio interface architecture, the physical layer, access procedures, broadcast, relaying, spectrum and RF characteristics, and system performance. Key technologies presented include multi-carrier transmission, advanced single-carrier transmission, advanced receivers, OFDM, MIMO and adaptive antenna solutions, radio resource management and protocols, and different radio network architectures. Their role and use in the context of mobile broadband access in general is explained, giving both a high-level overview and more detailed step-by-step explanations. This book is a must-have resource for engineers and other professionals in the telecommunications industry, working with cellular or wireless broadband technologies, giving an understanding of how to utilize the new technology in order to stay ahead of the competition. New to this edition: - In-depth description of CoMP and enhanced multi-antenna transmission including new reference-signal structures and feedback mechanisms - Detailed description of the support for heterogeneous deployments provided by the latest 3GPP release - Detailed description of new enhanced downlink control-channel structure (EPDDCH) - New RF configurations including operation in non-contiguous spectrum, multi-bands base stations and new frequency bands - Overview of 5G as a set of well-integrated radio-access technologies, including support for higher frequency bands and flexible spectrum management, massive antenna configurations, and ultra-dense deployments - Covers a complete update to the latest 3GPP Release-11 - Two new chapters on HetNet, covering small cells/heterogeneous deployments, and CoMP, including Inter-site coordination - Overview of current status of LTE release 12 including further enhancements of local-area, CoMP and multi-antenna transmission, Machine-type-communication, Device-to-device communication

Download or read book 4G LTE LTE Advanced for Mobile Broadband written by Erik Dahlman and published by Academic Press. This book was released on 2011-03-21 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: LTE (Long Term Evolution) is the 3GPP's (3rd Generation Partnership Project) new standard and accompanying technologies that mobile network operators such as ATT, Verizon and TeliaSonera are adopting for their networks. To move to higher-speed networks that can cater to customer demand for mobile broadband multimedia applications, the 3GPP has developed the latest LTE-Advanced (LTE Release 10) standard, which will be fixed in December 2010. This book focuses on LTE and LTE-Advanced, and provides engineers with real insight and understanding into the why and how of the standard and its related technologies. This book is written by engineers from Ericsson--the world's leading telecommunications supplier--who was heavily involved in the development of the standard. - Follow-up to the very successful 3G Evolution, now focusing on LTE and LTE Advanced standard and its accompanying technologies - Complete and clear explanation of LTE Advanced by the people who played a leading role in its development, which will enable engineers to quickly grasp the latest 3GPP Release 10 standard and implement it in their products - Not a contributed book as most others on this topic are: this book gives an integrated introduction to the technologies and the standard

Download or read book Advances in Electronics Communication and Computing written by Akhtar Kalam and published by Springer. This book was released on 2017-10-27 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of research work in the interdisciplinary areas of electronics, communication, and computing. This book is specifically targeted at students, research scholars and academicians. The book covers the different approaches and techniques for specific applications, such as particle-swarm optimization, Otsu’s function and harmony search optimization algorithm, triple gate silicon on insulator (SOI)MOSFET, micro-Raman and Fourier Transform Infrared Spectroscopy (FTIR) analysis, high-k dielectric gate oxide, spectrum sensing in cognitive radio, microstrip antenna, Ground-penetrating radar (GPR) with conducting surfaces, and digital image forgery detection. The contents of the book will be useful to academic and professional researchers alike.

Download or read book Advanced Transmission Techniques in WiMAX written by Roberto Hincapie and published by BoD – Books on Demand. This book was released on 2012-01-18 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been prepared to present the state of the art on WiMAX Technology. The focus of the book is the physical layer, and it collects the contributions of many important researchers around the world. So many different works on WiMAX show the great worldwide importance of WiMAX as a wireless broadband access technology. This book is intended for readers interested in the transmission process under WiMAX. All chapters include both theoretical and technical information, which provides an in-depth review of the most recent advances in the field, for engineers and researchers, and other readers interested in WiMAX.

Download or read book Mobile Terminal Receiver Design written by Sajal Kumar Das and published by John Wiley & Sons. This book was released on 2017-05-01 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: MOBILE TERMINAL RECEIVER DESIGN MOBILE TERMINAL RECEIVER DESIGN LTE and LTE-Advanced India This all-in-one guide addresses the challenges of designing innovative mobile handset solutions that offer smaller size, low power consumption, low cost, and tremendous flexibility, with improved data rates and higher performance. Readers are introduced to mobile phone system architecture and its basic building blocks, different air interface standards and operating principles, before progressing to hardware anatomy, software and protocols, and circuits for legacy and next-generation smart phones, including various research areas in 4G and 5G systems. Mobile Terminal Receiver Design/p? ulliexplains basic working principles, system architecture and specification detailsof legacy and possible next-generation mobile systems, from principle to practiceto product; covers in detail RF transmitter and receiver blocks, digital baseband processingblocks, receiver and transmitter signal processing, protocol stack, AGC, AFC, ATC,power supply, clocking; features important topics like connectivity and application modules with differentdesign solutions for tradeoff exploration; discusses multi-RAT design requirements, key design attributes such as low powerconsumption, slim form factors, seamless I-RAT handover, sensitivity, and selectivity. It will help software, hardware, and radio frequency design engineers to understand the evolution of radio access technologies and to design competitive and innovative mobile solutions and devices. Graduates, postgraduate students, and researchers in mobile telecommunications disciplines will also find this book a handy reference.

Download or read book MIMO OFDM for LTE WiFi and WiMAX written by Lajos Hanzo and published by John Wiley & Sons. This book was released on 2012-01-03 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: MIMO-OFDM for LTE, WIFI and WIMAX: Coherent versus Non-Coherent and Cooperative Turbo-Transceivers provides an up-to-date portrayal of wireless transmission based on OFDM techniques augmented with Space-Time Block Codes (STBCs) and Spatial-Division Multiple Access (SDMA). The volume also offers an in-depth treatment of cutting-edge Cooperative Communications. This monograph collates the latest techniques in a number of specific design areas of turbo-detected MIMO-OFDM wireless systems. As a result a wide range of topical subjects are examined, including channel coding and multiuser detection (MUD), with a special emphasis on optimum maximum-likelihood (ML) MUDs, reduced-complexity genetic algorithm aided near-ML MUDs and sphere detection. The benefits of spreading codes as well as joint iterative channel and data estimation are only a few of the radical new features of the book. Also considered are the benefits of turbo and LDPC channel coding, the entire suite of known joint coding and modulation schemes, space-time coding as well as SDM/SDMA MIMOs within the context of various application examples. The book systematically converts the lessons of Shannon's information theory into design principles applicable to practical wireless systems; the depth of discussions increases towards the end of the book. Discusses many state-of-the-art topics important to today's wireless communications engineers. Includes numerous complete system design examples for the industrial practitioner. Offers a detailed portrayal of sphere detection. Based on over twenty years of research into OFDM in the context of various applications, subsequently presenting comprehensive bibliographies.

Download or read book Digital Communications written by Mehmet Safak and published by John Wiley & Sons. This book was released on 2017-04-17 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a modern textbook on digital communications and is designed for senior undergraduate and graduate students, whilst also providing a valuable reference for those working in the telecommunications industry. It provides a simple and thorough access to a wide range of topics through use of figures, tables, examples and problem sets. The author provides an integrated approach between RF engineering and statistical theory of communications. Intuitive explanations of the theoretical and practical aspects of telecommunications help the reader to acquire a deeper understanding of the topics. The book covers the fundamentals of antennas, channel modelling, receiver system noise, A/D conversion of signals, PCM, baseband transmission, optimum receiver, modulation techniques, error control coding, OFDM, fading channels, diversity and combining techniques, MIMO systems and cooperative communications. It will be an essential reference for all students and practitioners in the electrical engineering field.

Download or read book HSPA Evolution written by Thomas Chapman and published by Academic Press. This book was released on 2014-11-24 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is essential reading for those wishing to obtain a systems perspective and a broad view on the background, performance and application of the latest developments in HSPA in the context of the demands on today's mobile broadband devices and networks. It takes the reader behind the scenes of 3GPP and provides an easily accessible understanding of the basic principles, the latest steps in the standard's evolution, and the motivations behind the development of standardized features. It covers important topics such as smartphone related features, multi-carrier and multi-antenna operation, interface architecture, heterogeneous networks and HSPA system performance. Offering full coverage of recent developments in HSPA up to Release 13, this book will provide a comprehensive description of one of the dominating standards for mobile broadband. With this book, you will: - Get a guided and consistent tour through the evolutionary stages of HSPA - Gain an understanding of the 3GPP standardization process, the driving forces behind it, and the need for evolution - Learn about the fundamental technology components of a modern wireless communication system, such as basic link level architecture, cellular system behavior, traffic management and scheduling and system management - Learn in detail the features of the latest HSPA development up to Release 13 - Gain a deep insight into the means by which HSPA performance can be simulated and characterized, the factors that drive the performance of networks and user experience, and the performance expectations for the technology - Obtain insight into the telecommunications market and its evolution - Learn about current trends and the future direction of HSPA - A full insight into the 3GPP and regulatory standardisation processes and the factors that drive evolution of the specification - A walk through of the fundamental technology principles that lie behind HSPA - A structured overview of the WCDMA/HSPA feature set, offering insider coverage starting from the core release 5/6 technologies and reviewing each of the added features up to and including the most recent developments in the area - An overview of the frequency bands available for HSPA - An insight into the radio performance requirements, their background and implications for mobiles and networks - A tutorial on simulation principles for HSPA - A description of the performance of HSPA features within the context of a tutorial on the factors that drive performance

Download or read book LTE for 4G Mobile Broadband written by Farooq Khan and published by Cambridge University Press. This book was released on 2009-03-26 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understand the new technologies of the LTE standard and their impact on system performance improvements with this practical guide.

Download or read book Materials Science and Information Technology written by Cai Suo Zhang and published by Trans Tech Publications Ltd. This book was released on 2012-01-03 with total page 8350 pages. Available in PDF, EPUB and Kindle. Book excerpt: These are the fully refereed proceedings of the International Conference on Materials Science and Information Technology (MSIT 2011), held during the 16-18 September 2011 in Singapore. The main goal of the event was to provide an international scientific forum for the exchange of new ideas in a number of fields by permitting in-depth interaction via discussions with peers from around the world. Core areas of materials science and information technology, plus multi-disciplinary and interdisciplinary aspects are covered. Volume is indexed by Thomson Reuters CPCI-S (WoS).

Download or read book Wireless and Cellular Communications written by William C. Y. Lee and published by McGraw Hill Professional. This book was released on 2005-11-16 with total page 851 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product.The wireless pioneer William C.Y. Lee, technology leader and author of the #1 book on wireless communications, has now completely updated his classic. This all-new, in-depth engineering guide for both voice and data services, Wi-Fi, 3G, WiMAX, and more, is essential reading for anyone working in this dynamic field. On-the-ground engineering coverage of B2G, 3G, B3G, 4G, and all other major systems Specifications for AMPS, GSM Family, iDEN, PHS, cdmaOne, WCDMA, HSDPA, CDMA2000, EV-DO, EV-DV, TD-SCDMA, Wi-Fi, WiMAX, etc. Antenna specifications for base stations and handsets Introduction of new technologies -- CS-OFDM, MIMO, LDPC, Turbo Code, CCK Code, RFID, etc. Engineering parameters for portable systems, Wi-Fi, Bluetooth, UWB, ZigBee, IR, and more Intelligent Cells -- All IP, in-building systems, etc. Intelligent Networks -- All IP, ad hoc, mesh, sensor, etc. Switches -- Circuit, Packet, ATM, Soft, etc. INSIDE: INSIGHTFUL, IN-DEPTH ENGINEERING * Introduction to Wireless Communications * Introduction to Cellular Systems * Specification of Analog Cellular Systems * Specification of Digital Cellular Systems * Specification of Newly Mobile Systems * Specification of WLAN and WMAN Systems * Cell Coverage and Antennas * Cochannel Interference * Types of Noncochannel Interference * Frequency Management and Channel Assignment * Handoffs and Dropped Calls * Operational Technology and Techniques * Switching and Traffic * Data Links and Microwaves * System Evaluations * Intelligent Cell Concept * Intelligent and All-IP Networks * Mobile Communications-Related Topics * 4G Perspectives

Download or read book LTE Advanced written by Sassan Ahmadi and published by Academic Press. This book was released on 2013-10-10 with total page 1147 pages. Available in PDF, EPUB and Kindle. Book excerpt: LTE-Advanced: A Practical Systems Approach to Understanding 3GPP LTE Releases 10 and 11 Radio Access Technologies is an in-depth, systematic and structured technical reference on 3GPP's LTE-Advanced (Releases 10 and 11), covering theory, technology and implementation, written by an author who has been involved in the inception and development of these technologies for over 20 years. The book not only describes the operation of individual components, but also shows how they fit into the overall system and operate from a systems perspective. Uniquely, this book gives in-depth information on upper protocol layers, implementation and deployment issues, and services, making it suitable for engineers who are implementing the technology into future products and services. Reflecting the author's 25 plus years of experience in signal processing and communication system design, this book is ideal for professional engineers, researchers, and graduate students working in cellular communication systems, radio air-interface technologies, cellular communications protocols, advanced radio access technologies for beyond 4G systems, and broadband cellular standards. - An end-to-end description of LTE/LTE-Advanced technologies using a top-down systems approach, providing an in-depth understanding of how the overall system works - Detailed algorithmic descriptions of the individual components' operation and inter-connection - Strong emphasis on implementation and deployment scenarios, making this a very practical book - An in-depth coverage of theoretical and practical aspects of LTE Releases 10 and 11 - Clear and concise descriptions of the underlying principles and theoretical concepts to provide a better understanding of the operation of the system's components - Covers all essential system functionalities, features, and their inter-connections based on a clear protocol structure, including detailed signal flow graphs and block diagrams - Includes methodologies and results related to link-level and system-level evaluations of LTE-Advanced - Provides understanding and insight into the advanced underlying technologies in LTE-Advanced up to and including Release 11: multi-antenna signal processing, OFDM, carrier aggregation, coordinated multi-point transmission and reception, eICIC, multi-radio coexistence, E-MBMS, positioning methods, real-time and non-real-time wireless multimedia applications