Download or read book A Reduced Routing Network Architecture for Partial Parallel LDPC Decoders written by Houshmand Shirani Mehr and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel partial parallel decoding scheme based on the matrix structure of LDPC codes proposed in IEEE 802.15.3c and IEEE 802.11ad standards is presented that significantly simplifies the routing network of the decoder, and the class of parity-check matrices for which the method can be used is defined. The proposed method results in an almost complete elimination of logic gates on the routing network, which yields improvements in area, speed and power, with an identical error correction performance to conventional partial-parallel decoders. A decoder for the (672,588) LDPC code adopted in the IEEE 802.11ad standard is implemented in a 65 nm CMOS technology including place & route with both proposed permutational decoder, and conventional partial-parallel architecture. The proposed permutational LDPC decoder operates at 235 MHz and delivers a throughput of 7.9 Gbps with 5 decoding iterations per block. Compared to a conventional partial-parallel decoder, the proposed decoder achieves a throughput 30% higher and at the same time requires a chip area approximately 24% smaller.
Download or read book A Parallel LDPC Decoder with Network on chip as Underlying Architecture written by Carlo Condo and published by . This book was released on 2010 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resource Efficient LDPC Decoders written by Vikram Arkalgud Chandrasetty and published by Academic Press. This book was released on 2017-12-05 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book takes a practical hands-on approach to developing low complexity algorithms and transforming them into working hardware. It follows a complete design approach – from algorithms to hardware architectures - and addresses some of the challenges associated with their design, providing insight into implementing innovative architectures based on low complexity algorithms.The reader will learn: - Modern techniques to design, model and analyze low complexity LDPC algorithms as well as their hardware implementation - How to reduce computational complexity and power consumption using computer aided design techniques - All aspects of the design spectrum from algorithms to hardware implementation and performance trade-offs - Provides extensive treatment of LDPC decoding algorithms and hardware implementations - Gives a systematic guidance, giving a basic understanding of LDPC codes and decoding algorithms and providing practical skills in implementing efficient LDPC decoders in hardware - Companion website containing C-Programs and MATLAB models for simulating the algorithms, and Verilog HDL codes for hardware modeling and synthesis
Download or read book An Area Efficient Architecture for the Implementation of LDPC Decoder written by Lan Yang and published by . This book was released on 2011 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to its near Shannon limit performance in high speed communication, low-density parity check (LDPC) code has performed a strong comeback recent years. In this work, a partial parallel decoding architecture is proposed based on a column-layered LDPC decoding scheme [2]. The purpose of this work is to make a tradeoff between area cost and throughput. I construct the structure of the partial parallel decoder, and compare its throughput and area cost with the design in [2]. Then I obtain the synthesis results of my design with Xilinx FPGA tool. The device utilization summary and timing summary are provided at the end of this work. Comparing with the design in [2], the partial parallel design in my work needs much less hardware resources. As a result, when the area is limit and a lower throughput is acceptable, my design can be considered instead of the design in [2].
Download or read book Advanced Hardware Design for Error Correcting Codes written by Cyrille Chavet and published by Springer. This book was released on 2014-10-30 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides thorough coverage of error correcting techniques. It includes essential basic concepts and the latest advances on key topics in design, implementation, and optimization of hardware/software systems for error correction. The book’s chapters are written by internationally recognized experts in this field. Topics include evolution of error correction techniques, industrial user needs, architectures, and design approaches for the most advanced error correcting codes (Polar Codes, Non-Binary LDPC, Product Codes, etc). This book provides access to recent results, and is suitable for graduate students and researchers of mathematics, computer science, and engineering. • Examines how to optimize the architecture of hardware design for error correcting codes; • Presents error correction codes from theory to optimized architecture for the current and the next generation standards; • Provides coverage of industrial user needs advanced error correcting techniques. Advanced Hardware Design for Error Correcting Codes includes a foreword by Claude Berrou.
Download or read book Field written by George Dekoulis and published by BoD – Books on Demand. This book was released on 2017-05-31 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume "Field-Programmable Gate Array" is a collection of reviewed and relevant research chapters, offering a comprehensive overview of recent developments in the field of semiconductors. The book comprises single chapters authored by various researchers and edited by an expert active in the aerospace engineering systems research area. All chapters are complete within themselves but united under a common research study topic. This publication aims at providing a thorough overview of the latest research efforts by international authors and open new possible research paths for further novel developments.
Download or read book VLSI Architectures for Modern Error Correcting Codes written by Xinmiao Zhang and published by CRC Press. This book was released on 2017-12-19 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Error-correcting codes are ubiquitous. They are adopted in almost every modern digital communication and storage system, such as wireless communications, optical communications, Flash memories, computer hard drives, sensor networks, and deep-space probing. New-generation and emerging applications demand codes with better error-correcting capability. On the other hand, the design and implementation of those high-gain error-correcting codes pose many challenges. They usually involve complex mathematical computations, and mapping them directly to hardware often leads to very high complexity. VLSI Architectures for Modern Error-Correcting Codes serves as a bridge connecting advancements in coding theory to practical hardware implementations. Instead of focusing on circuit-level design techniques, the book highlights integrated algorithmic and architectural transformations that lead to great improvements on throughput, silicon area requirement, and/or power consumption in the hardware implementation. The goal of this book is to provide a comprehensive and systematic review of available techniques and architectures, so that they can be easily followed by system and hardware designers to develop en/decoder implementations that meet error-correcting performance and cost requirements. This book can be also used as a reference for graduate-level courses on VLSI design and error-correcting coding. Particular emphases are placed on hard- and soft-decision Reed-Solomon (RS) and Bose-Chaudhuri-Hocquenghem (BCH) codes, and binary and non-binary low-density parity-check (LDPC) codes. These codes are among the best candidates for modern and emerging applications due to their good error-correcting performance and lower implementation complexity compared to other codes. To help explain the computations and en/decoder architectures, many examples and case studies are included. More importantly, discussions are provided on the advantages and drawbacks of different implementation approaches and architectures.
Download or read book Designing Optimized Parallel Interleaver Architecture for Turbo and LDPC Decoders written by Saeed Ur Rehman and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbo and LDPC codes are two families of codes that are extensively used in current communication standards due to their excellent error correction capabilities. To achieve high performance, parallel architectures are required. However, these architectures suffer from memory conflict problems. These conflicts increase latency of memory accesses due to the presence of conflict management mechanisms in communication network, and unfortunately decreases system throughput with augmenting system cost.To tackle memory conflict problem, different types of approaches are used in literature. In this thesis, we aim to design optimized parallel architecture. For this purpose, we have presented two different categories of approaches. In first category, we have proposed design time off-chip approaches in which we have proposed two kinds of solution: a first one based on network customization; and a second approach based on in-place memory architecture in order to generate optimized architecture. In the second category, memory mapping algorithms is embedded on-chip in order to execute them at runtime to solve conflict problem. Dedicated architecture is composed of an embedded processor and RAM memory banks to store generated command words. Polynomial time memory mapping approach and routing algorithm (based on Benes network) is embedded on-chip to solve memory conflict problem. Different experiments have been performed by using memory mapping approaches executed on several embedded processors.
Download or read book Channel Coding Theory Algorithms and Applications written by and published by Academic Press. This book was released on 2014-07-29 with total page 687 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a review of the principles, methods and techniques of important and emerging research topics and technologies in Channel Coding, including theory, algorithms, and applications. Edited by leading people in the field who, through their reputation, have been able to commission experts to write on a particular topic. With this reference source you will: - Quickly grasp a new area of research - Understand the underlying principles of a topic and its applications - Ascertain how a topic relates to other areas and learn of the research issues yet to be resolved - Quick tutorial reviews of important and emerging topics of research in Channel Coding - Presents core principles in Channel Coding theory and shows their applications - Reference content on core principles, technologies, algorithms and applications - Comprehensive references to journal articles and other literature on which to build further, more specific and detailed knowledge
Download or read book IEEE Transactions on Circuits and Systems written by and published by . This book was released on 2006 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Reconfigurable Network on Chip Design Innovations for Computational Processing and Communication written by Shen, Jih-Sheng and published by IGI Global. This book was released on 2010-06-30 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reconfigurable computing brings immense flexibility to on-chip processing while network-on-chip has improved flexibility in on-chip communication. Integrating these two areas of research reaps the benefits of both and represents the promising future of multiprocessor systems-on-chip. This book is the one of the first compilations written to demonstrate this future for network-on-chip design. Through dynamic and creative research into questions ranging from integrating reconfigurable computing techniques, to task assigning, scheduling and arrival, to designing an operating system to take advantage of the computing and communication flexibilities brought about by run-time reconfiguration and network-on-chip, it represents a complete source of the techniques and applications for reconfigurable network-on-chip necessary for understanding of future of this field.
Download or read book Digital Integrated Circuit Design written by Hubert Kaeslin and published by Cambridge University Press. This book was released on 2008-04-28 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical, tool-independent guide to designing digital circuits takes a unique, top-down approach, reflecting the nature of the design process in industry. Starting with architecture design, the book comprehensively explains the why and how of digital circuit design, using the physics designers need to know, and no more.
Download or read book Computer Networks written by Larry L. Peterson and published by Elsevier. This book was released on 2011-03-02 with total page 921 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer Networks: A Systems Approach, Fifth Edition, explores the key principles of computer networking, with examples drawn from the real world of network and protocol design. Using the Internet as the primary example, this best-selling and classic textbook explains various protocols and networking technologies. The systems-oriented approach encourages students to think about how individual network components fit into a larger, complex system of interactions. This book has a completely updated content with expanded coverage of the topics of utmost importance to networking professionals and students, including P2P, wireless, network security, and network applications such as e-mail and the Web, IP telephony and video streaming, and peer-to-peer file sharing. There is now increased focus on application layer issues where innovative and exciting research and design is currently the center of attention. Other topics include network design and architecture; the ways users can connect to a network; the concepts of switching, routing, and internetworking; end-to-end protocols; congestion control and resource allocation; and end-to-end data. Each chapter includes a problem statement, which introduces issues to be examined; shaded sidebars that elaborate on a topic or introduce a related advanced topic; What's Next? discussions that deal with emerging issues in research, the commercial world, or society; and exercises. This book is written for graduate or upper-division undergraduate classes in computer networking. It will also be useful for industry professionals retraining for network-related assignments, as well as for network practitioners seeking to understand the workings of network protocols and the big picture of networking. - Completely updated content with expanded coverage of the topics of utmost importance to networking professionals and students, including P2P, wireless, security, and applications - Increased focus on application layer issues where innovative and exciting research and design is currently the center of attention - Free downloadable network simulation software and lab experiments manual available
Download or read book Application Specific Hardware Architecture Design with VHDL written by Bogdan Belean and published by Springer. This book was released on 2017-10-17 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book guides readers through the design of hardware architectures using VHDL for digital communication and image processing applications that require performance computing. Further it includes the description of all the VHDL-related notions, such as language, levels of abstraction, combinational vs. sequential logic, structural and behavioral description, digital circuit design, and finite state machines. It also includes numerous examples to make the concepts presented in text more easily understandable.
Download or read book 802 11ac A Survival Guide written by Matthew S. Gast and published by "O'Reilly Media, Inc.". This book was released on 2013-07-23 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The next frontier for wireless LANs is 802.11ac, a standard that increases throughput beyond one gigabit per second. This concise guide provides in-depth information to help you plan for 802.11ac, with technical details on design, network operations, deployment, and monitoring. Author Matthew Gast—an industry expert who led the development of 802.11-2012 and security task groups at the Wi-Fi Alliance—explains how 802.11ac will not only increase the speed of your network, but its capacity as well. Whether you need to serve more clients with your current level of throughput, or serve your existing client load with higher throughput, 802.11ac is the solution. This book gets you started. Understand how the 802.11ac protocol works to improve the speed and capacity of a wireless LAN Explore how beamforming increases speed capacity by improving link margin, and lays the foundation for multi-user MIMO Learn how multi-user MIMO increases capacity by enabling an AP to send data to multiple clients simultaneously Plan when and how to upgrade your network to 802.11ac by evaluating client devices, applications, and network connections
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.
Download or read book Routing Congestion in VLSI Circuits written by Prashant Saxena and published by Springer Science & Business Media. This book was released on 2007-04-27 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a complete understanding of the fundamental causes of routing congestion in present-day and next-generation VLSI circuits, offers techniques for estimating and relieving congestion, and provides a critical analysis of the accuracy and effectiveness of these techniques. The book includes metrics and optimization techniques for routing congestion at various stages of the VLSI design flow. The subjects covered include an explanation of why the problem of congestion is important and how it will trend, plus definitions of metrics that are appropriate for measuring congestion, and descriptions of techniques for estimating and optimizing routing congestion issues in cell-/library-based VLSI circuits.
