Filters








480,238 Hits in 5.8 sec

Transform Techniques for Error Control Codes

R. E. Blahut
1979 IBM Journal of Research and Development  
By using the theory ofjinite5eld Fourier transforms, the subject o f error control codes is described in N language familiar to thejield of signal processing.  ...  The many importunt uses of spectral techniques in error control are summarized.  ...  Multidimensional transforms have been used for the study of error control codes in the guise of the Mattson-Solomon polynomial.  ... 
doi:10.1147/rd.233.0299 fatcat:txfqsqdsezak7ldzi73ckotuze

Comparative Evaluation of an Error Checking Approach for MPSoC

Tang Liu, Huang-Zhang Qin, Hou-Yi Bin, Fang-Feng Cai, Zhang-Hui Bing
2013 International Journal of Multimedia and Ubiquitous Engineering  
The CCRC approach insert some error detection code in high level code, detect the existing of redundancy core in MPSoC, then complete the calculation of detection code in redundancy core.  ...  This paper proposes a hardware error checking approach(CCRC)by using redundancy core for multiprocessor system-on-chip (MPSoC) and describes several main error detection methods based on Software-Implemented  ...  The transformation program for MPSoCThe harden code combining data and control flow check for MPSoC is shown inFigure 4.  ... 
doi:10.14257/ijmue.2013.8.5.14 fatcat:z6qucdgilba2pg7vg2ewxmjhy4

A Novel Channel Coding for Progressive Transmission of Medical Images [article]

P. Jagatheeswari, M. Rajaram
2009 arXiv   pre-print
Finally the components are coded for error control and transmitted. The complete system is coded in VHDL.  ...  It is simple, faster and easier to implement when compared with other transform method. The channel coding used here is Hamming code which is a simpler and efficient forward error control code.  ...  Hamming code is an efficient and simple coding technique that can be used for error control in image transmission.  ... 
arXiv:0912.3964v1 fatcat:dsek5zbvjvfkln6i66fivgk3rm

A technique for image encryption using digital signature

Aloka Sinha, Kehar Singh
2003 Optics Communications  
The encoding of the image is done using an appropriate error control code, such as a Bose-Chaudhuri Hochquenghem (BCH) code.  ...  We propose a new technique to encrypt an image for secure image transmission. The digital signature of the original image is added to the encoded version of the original image.  ...  Acknowledgements One of the authors (Aloka Sinha) is grateful to CSIR for granting a fellowship to perform this research work.  ... 
doi:10.1016/s0030-4018(03)01261-6 fatcat:dfhikhppsra27n7nimwukykwk4

Optimised information system reliability techniques for knowledge society acceptance

Nikolaos G. Bardis, Athanasios Drigas, Nikolaos Doukas, Nikolaos V. Karadimas
2009 International Journal of Knowledge and Learning  
Two methods for obtaining such transformations are developed and examples of coding for checksum functions are given.  ...  In this paper a new approach to increase the reliability and effectiveness of transient error detection using checksum calculations is proposed, that is based on the optimisation of coding with special  ...  The purpose of this research is to increase the reliability of checksum error control by developing functional transformations which optimise coding for the prevailing forms of errors in the binary symmetrical  ... 
doi:10.1504/ijkl.2009.031196 fatcat:2a5axxbgpfhlvi65twwo5o47oq

Error Resilient Schemes for Region of Interest based Video Coding
English

Mr P Subramanian, Ms R Indumathi
2014 International Journal of Computer Trends and Technology  
This paper reviews the current schemes for making the region of interest based video coding more error resilient.  ...  This paper reviews the current error resilient, region of interest video coding schemes, which improve the quality of region of interest in video coding.  ...  Apart from the above algorithms, there are some algorithms developed for wavelet transform based coding techniques.  ... 
doi:10.14445/22312803/ijctt-v7p110 fatcat:pzu6r4nbozhwde7qndwveq4qg4

Automatic generation of error control codes for computer applications

F. Fummi, D. Sciuto, C. Silvano
1998 IEEE Transactions on Very Large Scale Integration (vlsi) Systems  
New code construction techniques extending the features of previous single error correcting (SEC)-double error detecting (DED)-single byte error detecting (SBD) codes have been integrated in the tool.  ...  This paper proposes a methodology, implemented in a tool, to automatically generate the main classes of error control codes (ECC's) widely applied in computer memory systems to increase reliability and  ...  Several codes with byte error control capabilities have been proposed in literature [1] .  ... 
doi:10.1109/92.711322 fatcat:umrfyodn75daletbvpe656eani

Implementation Of Data Compression S/W On A Space Qualified Dsp Board

Wahida GASTI, Thomas LEFORT, Mireille LOUYS
2015 Zenodo  
Thus, we privilege the use of these instructions specifically for the Wavelet transform function and the SPIHT and WISE coding functions.  ...  This technique induces sequels. Indeed, requiring 2 different symbols (IZ and ZT) for coding zero coefficients it leads to a suboptimal use of the bit budget.  ... 
doi:10.5281/zenodo.37300 fatcat:curlsfuemvd7zhtpgmpttzwcyu

Performance Analysis of Alamouti Code MIMO-OFDM Systems for Error Control and IQ Impairments

Rajesh Bhadada, Ritika Taparia
2015 Communications on Applied Electronics  
MIMO-OFDM systems designed with Alamouti Coding technique, using Error Control Coding schemes has been investigated under this study to achieve BER enhancement and scrutinized for Additive White Gaussian  ...  General Terms Bit Error Rate, Space Time Coding (STC).  ...  Error Control Coding and Decoding Referring to Figure 1 , incoming bits were initially coded using any error control coding or forward error correction coding technique.  ... 
doi:10.5120/cae-1506 fatcat:zccnejpzazczdor5ogei2x3wfa

Comparison of OFDM System in Terms of BER using Different Transform and Channel Coding

Pratima Manhas, M.K Soni
2016 International Journal of Engineering and Manufacturing  
The performance parameter is calculated as Bit error rate (BER) for various transform/modulation/channel coding based OFDM systems. MATLAB Simulink tool is used to calculate the bit error rate (BER).  ...  In this paper OFDM system is modeled by using different transform (DWT/FFT), different modulation (BPSK, QPSK, QAM) and different channel coding (Linear / Cyclic block codes) for AWGN channel.  ...  Acknowledgements The authors are very much thankful to the reviewers for their comments and suggestions to improve the quality of the manuscript.  ... 
doi:10.5815/ijem.2016.01.03 fatcat:xtn3fgenazb6zgxdkozrzyfzaq

Error control and concealment for video communication: a review

Yao Wang, Qin-Fan Zhu
1998 Proceedings of the IEEE  
This paper reviews the techniques that have been developed for error control and concealment in the past 10-15 years.  ...  Forward error concealment includes methods that add redundancy at the source end to enhance error resilience of the coded bit streams.  ...  Reibman, AT&T Labs-Research, for carefully reading through the manuscript and providing many useful suggestions and critiques, as well as for her generous help in generating the images in Fig. 1 .  ... 
doi:10.1109/5.664283 fatcat:7cszod27offo5oat4jz5p4xhqu

A Fast Searching Algorithm of Symmetrical Period Modulation Pattern Based on Accumulative Transformation Technique [chapter]

FuHua Fan, Ying Tan
2005 Lecture Notes in Computer Science  
CODING THEORY AND TECHNIQUES R50804 5. DIGITAL CONTROL SYSTEMS R50805 6. DIGITAL DATA COMMUNICATIONS R50806 7. DIGITAL SIGNAL PROCESSING R50807 8.  ...  UNIT VI Phase Coding Techniques : Principles, Binary Phase Coding, Barker Codes, Maximal Length Sequences (MLS/LRS/PN), Block Diagram of a Phase Coded CW Radar.  ...  The Read -Muller expansion technique, level OR-AND-OR design, use of control and syndrome -testable design.  ... 
doi:10.1007/11539117_71 fatcat:7rghuykmvrhkdnl4fblp2zi3fu

A Proposed Method to Enhance the Quality of Data Communication in WSN using Modular Arithmetic

2020 VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE  
These considerations have led us to propose to work on "Performance studies on RNS based spread spectrum techniques for few communication channels"  ...  High reliability is required to use WSN in safety systems, real time monitoring systems, guard systems and industrial control for all levels of the OSI model.  ...  INTRODUCTION We have chosen Residue Number System for error control [7] [8] . Number theoretic transforms (NTT) based a set of detection and correction of error codes is available [1] [6] .  ... 
doi:10.35940/ijitee.g5797.069820 fatcat:if32y7rv5vboni3foirfxrbnva

On the extension of the complex-step derivative technique to pseudospectral algorithms

Laura I. Cerviño, Thomas R. Bewley
2003 Journal of Computational Physics  
The present note examines the suitability of this technique for extension to efficient pseudospectral simulation codes which nominally use the fast Fourier transform (FFT) to convert back and forth between  ...  The technique has previously been applied to nonlinear simulation codes (such as finite-element codes) which employ real arithmetic only.  ...  of the control variable), it has become a popular technique for computing the directional derivative.  ... 
doi:10.1016/s0021-9991(03)00123-2 fatcat:atgcnfp2t5cfzcsufgklkl66m4

Safely Embedded Software for State Machines in Automotive Applications [chapter]

Juergen Mottok, Frank Schiller, Thomas Zeitler
2012 Embedded Systems - Theory and Design Methodology  
Safety code weaving for C control structures In the former sections, a subset of SES transformation was discussed.  ...  The C control structures are safeguarded against local program flow errors. The branch condition of the control structure is transformed and checked inside the branch. 5.  ... 
doi:10.5772/38382 fatcat:ctiflozrkjfx5i6usci7gwj7qa
« Previous Showing results 1 — 15 out of 480,238 results