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Author : Alexandra Duel-Hallen
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (16 download)
Download or read book Detection algorithms for intersymbol interference channels written by Alexandra Duel-Hallen and published by . This book was released on 1989 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jongseung Park
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.:/5 (319 download)
Download or read book Detection for Intersymbol Interference Channels written by Jongseung Park and published by . This book was released on 2001 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexandra Duel-Hallen
Publisher :
ISBN 13 :
Total Pages : 238 pages
Book Rating : 4.E/5 ( download)
Download or read book Detection Algorithms for Intersymbol Interference Channels written by Alexandra Duel-Hallen and published by . This book was released on 1987 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ying Zhu
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (256 download)
Download or read book Signal Detection on Two-dimensional Intersymbol Interference Channels written by Ying Zhu and published by . This book was released on 2008 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Xiang-Gen Xia
Publisher : CRC Press
ISBN 13 : 1482270668
Total Pages : 308 pages
Book Rating : 4.4/5 (822 download)
Download or read book Modulated Coding for Intersymbol Interference Channels written by Xiang-Gen Xia and published by CRC Press. This book was released on 2018-10-08 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of modulated coding (MC), a technique for intersymbol interference (ISI) mitigation. It discusses MC when the ISI is known at both transmitter and receiver, and when only the receiver knows the ISI. It showcases polynomial antiquity resistant modulated coding, and provides an examination of transmitter-assisted ISI equalization.
Author : Gianluigi Ferrari
Publisher : John Wiley & Sons
ISBN 13 : 047085829X
Total Pages : 426 pages
Book Rating : 4.4/5 (78 download)
Download or read book Detection Algorithms for Wireless Communications written by Gianluigi Ferrari and published by John Wiley & Sons. This book was released on 2005-12-13 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless channels are becoming more and more important, with the future development of wireless ad-hoc networks and the integration of mobile and satellite communications. To this end, algorithmic detection aspects (involved in the physical layer) will become fundamental in the design of a communication system. This book proposes a unified approach to detection for stochastic channels, with particular attention to wireless channels. The core idea is to show that the three main criteria of sequence detection, symbol detection and graph-based detection, can all be described within a general framework. This implies that a detection algorithm based on one criterion can be extended to the other criteria in a systematic manner. Presents a detailed analysis of statistical signal detection for digital signals transmitted over wireless communications Provides a unifying framework for different signal detection algorithms, such as sequence detection, symbol detection and graph-based detection, important for the design of modern digital receivers operating over mobile channels Features the hot topic of graph-based detection Detection Algorithms for Wireless Communications represents a novel contribution with respect to the current literature, with a unique focus on detection algorithms, as such it will prove invaluable to researchers working in academia and industry and in the field of wireless communications, as well as postgraduate students attending advanced courses on mobile communications.
Author : Yiming Chen
Publisher :
ISBN 13 :
Total Pages : 111 pages
Book Rating : 4.:/5 (755 download)
Download or read book Equalization Algorithms for the Two-dimensional Intersymbol Interference Channel written by Yiming Chen and published by . This book was released on 2011 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : İsmail Demirkan
Publisher :
ISBN 13 :
Total Pages : 165 pages
Book Rating : 4.:/5 (713 download)
Download or read book Coding and Detection for 2-dimensional Channels written by İsmail Demirkan and published by . This book was released on 2006 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coding and detection techniques for one-dimensional (1-D) intersymbol interference (ISI) channels, particularly magnetic and optical recording channels, have been studied extensively for almost three decades. On the modulation coding side, the state-splitting algorithm has been developed to design efficient systematic modulation codes. On the detection side, Viterbi detector and decision-feedback equalization (DFE) have been well-understood. Two-dimensional (2-D) holographic data storage, has been developed to store the information page-wise instead of on 1-D tracks. This will signifficantly increase the storage density and read/write access of the information. However, most of the modulation coding and detection techniques for 1-D recording systems are unusable for 2-D holographic data storage. In this work, we present various methods for modelling and equalizing 2-D ISI channels. Some low complexity detectors, such as a threshold detector, have been proposed for certain 2-D ISI channels. One of the main problems of the holographic data storage is the misalignment between written and sampled data pages. This problem is addressed by using more detector pixels than data points, which is called oversampling. We also attempted to characterize the distance properties of certain 2-D ISI channels. An algorithm for finding error events is developed for any 2-D ISI channel. Unlike the 1-D constrained systems, the capacity of most 2-D constrained systems is not analytically known due to the lack of graph-based descriptions of such channels. This also complicates the design of efficient modulation codes. We propose algorithms for finding single-state and finite-state block codes for the hard-square constraint. The encoding and decoding of the modulation codes can be performed easily using codeword generating templates. We also propose an algorithm for finding single-state block codes for any 2-D constrained system represented by a set of forbidden patterns. For 1-D recording, we designed block codes satisfying the running digital sum (RDS) and time-varying maximum transition run (TMTR) constraints for perpendicular recording channels. The graphs of these constraints are combined to understand the design trade-off between the achievable coding rate and constraint parameters. The spectra of the combined constraints shows the properties of the constituent constraints. The modulations codes are designed by searching for all codewords satisfying certain constraint properties.
Author : Jaekyun Moon
Publisher : Springer Science & Business Media
ISBN 13 : 1461535646
Total Pages : 170 pages
Book Rating : 4.4/5 (615 download)
Download or read book Sequence Detection for High-Density Storage Channels written by Jaekyun Moon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic data storage can be viewed as a data communication system. This is not a sUlprising view, considering that data storage is essentially the transfer of data between different times. The past decade has indeed seen rapidly growing interest in applying improved coding and detection techniques to magnetic data storage, a traditional approach to enhance performance of communication channels. Since its inception in the 1930's, the magnetic recording industry has achieved impressive progress in data capacity. This has been made possible mainly by innovations and advances in heads and media design. However, as the demand for higher storage capacity continues in the modem information era, a need arises to explore other possibilities to help meet the ever-growing demand. Advanced coding and detection are one such possibility, providing an efficient, cost-effective means to increase data capacity. In fact, with the advent of modem Ie technology which has enabled real-time implementation of increasingly complex signal processing algorithms, advanced coding and detection are rapidly becoming a major issue in the development of improved data storage products. While there have been remarkable advances in recent years in the areas of both coding and detection for data storage, this book focuses only on data detection, or the processing of readback waveforms to reproduce stored data, in conjunction with the traditional modulation coding method called run length-limited or (d,k) coding.
Author : Zining Wu
Publisher : Springer Science & Business Media
ISBN 13 : 146154565X
Total Pages : 165 pages
Book Rating : 4.4/5 (615 download)
Download or read book Coding and Iterative Detection for Magnetic Recording Channels written by Zining Wu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of the internet age has produced enormous demand for in creased storage capacity and for the consequent increases in the amount of information that can be stored in a small space. While physical and media improvements have driven the majority of improvement in modern storage systems, signal processing and coding methods have increasing ly been used to augment those improvements. Run-length-limited codes and partial-response detection methods have come to be the norm in an industry that once rejected any sophistication in the read or write pro cessing circuits. VLSI advances now enable increasingly sophisticated signal processing methods for negligible cost and complexity, a trend sure to continue even as disk access speeds progress to billions of bits per second and terabits per square inch in the new millennium of the in formation age. This new book representing the Ph. D. dissertation work of Stanford's recent graduate Dr. Zining Wu is an up-to-date and fo cused review of the area that should be of value to those just starting in this area and as well those with considerable expertise. The use of saturation recording, i. e. the mandated restriction of two-level inputs, creates interesting twists on the use of communica tion/transmission methods in recording.
Download or read book Naucnaja Konferencija. Astrachanskij techniceskij Institut rybnoj promyslennosti i chozjajstva // Astrachanskij techniceskij Institut rybnoj promyslennosti i chozjajstva ; 20 written by and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Academic Press
ISBN 13 : 012397223X
Total Pages : 687 pages
Book Rating : 4.1/5 (239 download)
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
Author : Taewon Hwang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (631 download)
Download or read book Iterative Techniques Based on Energy Spreading Transform for Wireless Communications written by Taewon Hwang and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the proposed research is to devise high-performance and low-complexity signal-detection algorithms for communication systems over fading channels. They include channel equalization to combat intersymbol interference (ISI) and multiple input multiple output (MIMO) signal detection to deal with multiple access interference (MAI) from other transmit antennas. As the demand for higher data-rate and more efficiency wireless communications increases, signal detection becomes more challenging. We propose novel transmission and iterative signal-detection techniques based on energy spreading transform (EST). Different from the existing iterative methods based on the turbo principle, the proposed schemes are independent of channel coding. EST is an orthonormal that spreads a symbol energy over the symbol block in time and frequency for channel equalization; space and time for MIMO signal detection with flat fading channels; and space, time, and frequency for MIMO signal detection with frequency-selective fading channels. Due to the spreading, EST obtains diversity in the available domains for the specific application and increases the reliability of the feedback signal. Moreover, it enables iterative signal detection that has near interference-free performance only at the complexity of linear detectors. Either a hard or soft decision can be fed back to the interference-cancellation stage at the subsequent iteration. The soft-decision scheme prevents error propagation of the hard-decision scheme for a low SNR and improves the performance. We analyze the performance of the proposed techniques. Analytical and simulation results show that these schemes perform very close to the interference-free systems.
Author : Jiaxi Xiao
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (81 download)
Download or read book Information Theoretic Approach in Detection and Security Codes written by Jiaxi Xiao and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Signal detection plays a critical role in realizing reliable transmission through communication systems. In this dissertation, by applying information theoretic approach, efficient detection schemes and algorithms are designed for three particular communication systems. First, a computation efficient coding and detection algorithm is developed to decode two dimensional inter-symbol interference (ISI) channels. The detection algorithm significantly reduces the computation complexity and makes the proposed equalization algorithm applicable. A new metric, the post-detection mutual information (PMI), is established to quantify the ultimate information rate between the discrete inputs and the hard detected output. This is the first time that the information rate loss caused by the hard mapping of the detectors is considered. Since the hard mapping step in the detector is irreversible, we expect that the PMI is reduced compared to the MI without hard mapping. The conclusion is confirmed by both the simulation and the theoretic results. Random complex field code is designed to achieve the secrecy capacity of wiretap channel with noiseless main channel and binary erasure eavesdroppers' channel. More importantly, in addition to approaching the secrecy capacity, RCFC is the first code design which provides a platform to tradeoff secrecy performance with the erasure rate of the eavesdropper's channel and the secrecy rate.
Author : david g. messerschmitt
Publisher :
ISBN 13 :
Total Pages : 444 pages
Book Rating : 4.L/5 ( download)
Download or read book digital communication: detectors and estimatos for the time-varying channel with intersymbol written by david g. messerschmitt and published by . This book was released on 1973 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Glenn R. Heidbreder
Publisher : Springer Science & Business Media
ISBN 13 : 9780792328513
Total Pages : 434 pages
Book Rating : 4.3/5 (285 download)
Download or read book Maximum Entropy and Bayesian Methods Santa Barbara, California, U.S.A., 1993 written by Glenn R. Heidbreder and published by Springer Science & Business Media. This book was released on 1996-05-31 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Thirteenth International Workshop on Maximum Entropy and Bayesian Methods
Author : Yanjie Peng
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.:/5 (823 download)
Download or read book Design and Implementation of Belief Propagation Symbol Detectors for Wireless Intersymbol Interference Channels written by Yanjie Peng and published by . This book was released on 2012 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: In modern wireless communication systems, intersymbol interference (ISI) introduced by frequency selective fading is one of the major impairments to reliable data communication. In ISI channels, the receiver observes the superposition of multiple delayed reflections of the transmitted signal, which will result errors in the decision device. As the data rate increases, the effect of ISI becomes severe. To combat ISI, equalization is usually required for symbol detectors. The optimal maximum-likelihood sequence estimation (MLSE) based on the Viterbi algorithm (VA) may be used to estimate the transmitted sequence in the presence of the ISI. However, the computational complexity of the MLSE increases exponentially with the length of the channel impulse response (CIR). Even in channels which do not exhibit significant time dispersion, the length of the CIR will effectively increase as the sampling rate goes higher. Thus the optimal MLSE is impractical to implement in the majority of practical wireless applications. This dissertation is devoted to exploring practically implementable symbol detectors with near-optimal performance in wireless ISI channels.
