检索结果-内蒙古大学图书馆

DESIGN OF CAECC - CELLULAR-AUTOMATA BASED error-correcting code

IEEE TRANSACTIONS ON COMPUTERS 1994年第6期43卷 759-764页

作者： CHOWDHURY, DR BASU, S SENGUPTA, I CHAUDHURI, PP COURANT INST TECHNOL NEW YORKNY 10012

A new scheme for designing error detecting and correcting codes around cellular automata (CA) is reported in this correspondence. A simple and efficient scheme for generating SEC-DED codes is presented which can also be extended for generating codes with higher distances. A CA-based hardware scheme for very fast decoding (and correcting) of the codewords is also reported.

关键词： CELLULAR AUTOMATA error correcting code FAULT TOLERANCE

来源：评论

学校读者我要写书评

暂无评论

Naive mean field approximation for sourlas error correcting code

引用

IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS 2006年第8期E89D卷 2439-2447页

作者： Takata, Masami Shouno, Hayaru Okada, Masato Nara Womens Univ Nara 6308506 Japan Yamaguchi Univ Ube Yamaguchi 7558611 Japan Univ Tokyo Kashiwa Chiba 2778561 Japan

Solving the error correcting code is an important goal with regard to communication theory. To reveal the error correcting code characteristics, several researchers have applied a statistical-mechanical approach to this problem. In our research, we have treated the error correcting code as a Bayes inference framework. Carrying out the inference in practice, we have applied the NMF (naive mean field) approximation to the MPM (maximizer of the posterior marginals) inference, which is a kind of Bayes inference. In the field of artificial neural networks, this approximation is used to reduce computational cost through the substitution of stochastic binary units with the deterministic continuous value units. However, few reports have quantitatively described the performance of this approximation. Therefore, we have analyzed the approximation performance from a theoretical viewpoint, and have compared our results with the computer simulation.

关键词： naive mean field approximation MPM inference error correcting code analog neural network

来源：评论

学校读者我要写书评

暂无评论

CAA decoder for Cellular Automata based byte error correcting code

引用

IEEE TRANSACTIONS ON COMPUTERS 1996年第9期45卷 1003-1016页

作者： Sasidhar, K Chattopadhyay, S Chaudhuri, PP DEEMED UNIV BENGAL ENGN COLLDEPT COMP SCI & TECHNOLHOWRAH 711103INDIA INDIAN INST TECHNOL DEPT COMP SCI & ENGNKHARAGPUR 721302W BENGALINDIA

Design of Cellular Automata (CA) based byte error correcting code analogous to extended Reed-Solomon code has been proposed in [1], [2]. This code has same restrictions on error correction as that of extended R-S code. In this paper a new design scheme has been reported for parallel implementation of CA based SbEC/DbED and DbEC/DbED code that is analogous to the conventional R-S code. Both the encoder and decoder of this code can be efficiently implemented with an array of CA (CAA) with high throughput. The design is ideally suited for high speed memory systems built with byte organized RAM chips. Extension of the scheme to detect/correct larger number of byte errors has also been reported. Throughput of the decoder to handle t byte errors (t less than or equal to 4) can be found to be substantially better than that of conventional R-S decoder. The proposed decoder provides a simple, modular and cost effective design that ideally suits for VLSI implementation.

关键词： cellular automata error correcting code cellular automata array (CAA) error vector error space

来源：评论

学校读者我要写书评

暂无评论

Reliability Optimization of ReRAM Architecture using Heterogeneous error correcting code Scheme 15

Reliability Optimization of ReRAM Architecture using Heterog...

引用

15th International SoC Design Conference (ISOCC)

作者： Lee, Kwangjin Han, Tae Hee Sungkyunkwan Univ Dept Semicond & Display Engn Suwon South Korea

ISBN: (纸本)9781538679609

The memristor-based resistive random access memory (ReRAM) has been emerged because of its beneficial properties such as non-volatility, high density, and process scalability. However, ReRAM also suffers from process variation caused by down scaling of device size and operating voltage level. In this paper, we propose a new reliable ReRAM architecture with heterogeneous ECC-based subblock architecture focusing on reducing implementation overhead. Experimental results show that the proposed approach reduces the number of parity bits by 18.80 %, area by 20.43 %, respectively, and increases the code rate by 3.90 % compared to those of conventional homogeneous ECC scheme.

关键词： ReRAM error correcting code error Pattern Modeling Data Reliability

来源：评论

学校读者我要写书评

暂无评论

Holistic-Based Feature Extraction And error correcting code Biometric Template Protection Technique

Holistic-Based Feature Extraction And Error Correcting Code ...

引用

6th International Conference on IT Convergence and Security (ICITCS)

作者： Ismail, Suzwani Binti Ali, Fakariah Hani Mohd Aljunid, Syed Ahmad Univ Teknol MARA Fac Comp & Math Sci Selangor Malaysia

ISBN: (纸本)9781509037650

Biometric template protection is one of the most important issues in biometric authentication system. It is vital because once the biometric template is being attacked, the intruder could introduce him/her into the system without following the proper enrolment procedures. Previous related biometric template works have some limitations in terms of lower accuracy level and high correlations between templates. These two problems may lead to false accept attacks and cross-matching attacks on these templates. To mitigate these problems, this research aims to increase the accuracy level by reducing errors in biometric template and to reduce correlation between biometric templates by generating uncorrelated feature vectors to reduce error in biometric template in order to increase accuracy level and generate uncorrelated feature vectors. To reduce errors and to generate uncorrelated feature vectors, error correcting code (ECC) based on combination of LDPC and RS and Holistic-based Feature Extraction based on LDA, PCA and ICA are designed respectively. The proof of concept is tested on Iris biometric templates using X number of samples from the Y benchmark image repository. The results showed that the proposed template protection technique is able to increase accuracy level by A% and reduce correlation between biometric templates to B%. Thus, this technique is a viable and practical template protection technique without degrading the iris recognition performance.

关键词： biometric template protection iris error correcting code holistic-based feature extraction

来源：评论

学校读者我要写书评

暂无评论

Finite-dimensional spin glass and quantum error correcting code

引用

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES 2005年第3-4期29卷 720-724页

作者： Takeda, K Sasamoto, T Nishimori, H Tokyo Inst Technol Dept Phys Meguro Ku Tokyo 1528551 Japan

We study a variety of spin systems with randomness in order to investigate the performance of the quantum error correcting codes. We show that the duality formalism is useful to search the locations of the critical points for the random spin systems, which gives Lis the clue to the exact values of the accuracy thresholds for the topological error correcting codes. (c) 2005 Elsevier B.V. All rights reserved.

关键词： quantum information error correcting code random spin system spin glass duality phase transition

来源：评论

学校读者我要写书评

暂无评论

Forward error correcting code for High Data Rate LEO Satellite Optical Downlinks

Forward Error Correcting Code for High Data Rate LEO Satelli...

引用

International Conference on Space Optics (ICSO)

作者： Poulenard, S. Gadat, B. Chouteau, J. F. Anfray, T. Poulliat, C. Jego, C. Hartmann, O. Artaud, G. Meric, H. Airbus Def & Space 31 Rue Cosmonautes F-31402 Toulouse France Univ Bordeaux Bordeaux INP CNRS IMS Lab Bordeaux France Univ Toulouse ENSEEIHT Toulouse France French Spatial Agcy CNES Toulouse France

ISBN: (纸本)9781510630772

A simulation framework based on a physical-layer based abstraction to predict physical layer performances and to compare different forward error correcting (FEC) codes is presented. This framework is used to jointly design interleaving and FEC schemes for free space optical link. A sub-class of regular Low-Density Parity-Check codes is shown to be an interesting alternative to current space communication standard for optical links that require low error floor and high decoder throughput. End-to-end simulations show the feasibility of error free link from a LEO satellite to a high complexity ground station at 25Gbits/s and from a LEO satellite to low complexity optical ground station at 10 Gbits/s. The proposed protection scheme is composed of FG LDPC code and a bit interleaver to span the burst of errors.

关键词： Optical link error correcting code LDPC code decoder design

来源：评论

学校读者我要写书评

暂无评论

Visual robust oblivious watermarking technique using error correcting code

Visual robust oblivious watermarking technique using error c...

引用

10th International Conference on Communication Technology (ICCT 2006)

作者： Kung, C. M. Troung, T. K. Meiho Inst Technol Dept Informat Management Meiho Taiwan T Shou Univ Dept Informat Engn Meiho Taiwan

ISBN: (纸本)9781424408009

Digital watermarking is an effective and popular technique to discourage illegal copying and distribution of copyrighted digital content. In this paper, an idea for enhancing the robustness of extracted watermarks is proposed. The digital watermarking of multimedia is viewed as a communications problem in which the watermark must be transmitted and received through a channel. The channel includes distortions resulting from attacks. Watermark can be treated as a transmitted signal, while the destruction of attackers is regarded as a noise distortion in channel. error correcting code used in watermarking will have the feature that corrects errors of the extracted watermark automatically. The Golay code is used to detect and correct the errors of the extracted watermarks. The experimental results have demonstrated that the developed technique can survive subject to the JPEG lossy compression (up to 13.6% compression rate). As a consequence, the developed scheme has satisfied the basic requirements of watermarking such as robustness, capacity, and imperceptible.

关键词： digital watermarking error correcting code Golay code

来源：评论

学校读者我要写书评

暂无评论

Finite-dimensional spin glass and quantum error correcting code

Finite-dimensional spin glass and quantum error correcting c...

引用

1st International Symposium on Nanomet-Scale Quantum Physics

作者： Takeda, K Sasamoto, T Nishimori, H Tokyo Inst Technol Dept Phys Meguro Ku Tokyo 1528551 Japan

关键词： quantum information error correcting code random spin system spin glass duality phase transition

来源：评论

学校读者我要写书评

暂无评论

A method combining error correcting code and runlength limited code for reducing error propagation

引用

ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE 2001年第11期84卷 45-51页

作者： Hirai, T Wadayama, T Yuba, Y Okayama Prefectural Univ Dept Elect & Informat Sci Soja 7191197 Japan

In this paper we discuss a method for reducing the error propagation based on a combination of the error correcting code and the runlength limited code. When the runlength limited code and the error correcting code are used together, the runlength limited encoding is usually applied after the data have been encoded by the encoder of the error correcting code. However, error propagation generated in the data transmission channel can be substantially mitigated during the decoding of the runlength limited code if the runlength encoding is implemented first with subsequent implementation of the error correcting code. The method proposed in this paper consists of a periodic insertion of check symbols in the data sequence encoded first by the runlength limited code and then by the error correcting code. We also proposed a new runlength limited code suitable for the proposed combined method and evaluated its performance. (C) 2001 Scripta Technica.

关键词： signal processing for magnetic recording runlength limited code error correcting code error propagation

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：