Results 31 to 40 of about 70,163 (113)

Two-dimensional cyclic codes over a finite chain ring

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
In this paper, we have determined the generators and rank of a 2D cyclic code of length mn over a finite chain ring ℛ with residue field 𝔽q, where m is arbitrary and q ≡ 1(mod n).
Garg Disha, Dutt Sucheta
doaj   +1 more source

On Double Cyclic Codes and Applications to DNA Codes

open access: yesMathematics
In this paper, we investigate the structure of double cyclic codes of length (α,β) over R=F4+ϱF4,ϱ2=0 and give a minimal spanning set of double cyclic codes. Moreover, we extend this study to construct DNA codes from R-double cyclic codes.
Amal S. Alali   +2 more
doaj   +1 more source

Polar Codes With Repeating Bits and the Construction by Cluster Pairwise Error Probability

open access: yesIEEE Access, 2019
A polar code with repeating bits (RB polar code), where a part of frozen bits only repeat their preceding information bits, is proposed. In the code construction, we propose cluster pairwise error probability (CPEP) to measure the competitiveness of the ...
Tao Wang, Daiming Qu, Tao Jiang
doaj   +1 more source

New bound of algebraic immunity of a class of Boolean function

open access: yesTongxin xuebao, 2016
Algebraic immunity quantified the resistance of a Boolean function to the algebraic attack.Recently,Mesnager,et al showed that there were direct linked between the annihilators used in algebraic attacks and the coding theory.They showed that the lower ...
Ye TIAN   +3 more
doaj  

Multiuser cyclic shift keying spread spectrum underwater acoustic communication

open access: yesTongxin xuebao, 2017
Aiming at the problem of low data rate and high receiver complexity of existing direct sequence spread spectrum code division multiple access (DS-CDMA),a novel code division multiple access (CDMA) using cyclic shift keying (CSK) signaling,namely CSK-CDMA,
Cheng-bing HE   +6 more
doaj   +2 more sources

About on the obtaining of some quantum code parameters from (−2vm−1 + 1)-constacyclic codes over the ring R = 𝔽q + v𝔽q + · · · + vm−1𝔽q

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
In this study, the hull dimensions of (−2vm−1 +1)-constacyclic codes over the ring R = 𝔽q + v𝔽q + · · · + vm−1𝔽q with vm = v are determined. In addition, by using a special Gray map, a necessary condition is given under which the generator polynomial of ...
Gökgöz Gökhan, Öke Figen
doaj   +1 more source

Multicast Convolutional Network Codes via Local Encoding Kernels

open access: yesIEEE Access, 2017
A convolutional network (CN) code can be described by either global encoding kernels (GEKs) or local encoding kernels (LEKs). In the literature, the multicast property of a CN code is described using GEKs, so the design algorithms for multicast CN codes ...
Morteza Rekab-Eslami   +2 more
doaj   +1 more source

Novel Side-Channel Attacks on Quasi-Cyclic Code-Based Cryptography

open access: yesTransactions on Cryptographic Hardware and Embedded Systems, 2019
Chou suggested a constant-time implementation for quasi-cyclic moderatedensity parity-check (QC-MDPC) code-based cryptography to mitigate timing attacks at CHES 2016.
Bo-Yeon Sim   +5 more
doaj   +1 more source

Design of LDPC Codes: A Survey and New Results

open access: yesJournal of Communications Software and Systems, 2006
This survey paper provides fundamentals in the design of LDPC codes. To provide a target for the code designer, we first summarize the EXIT chart technique for determining(near-)optimal degree distributions for LDPC code ensembles.
Gianluigi Liva   +5 more
doaj  

LDPC code reconstruction based on algorithm of finding low weight code-words

open access: yesTongxin xuebao, 2017
LDPC code reconstruction without a candidate set is one of the tough problems in channel code reconstruction.First,theoretical analysis was provided for the number of received code-vectors needed for the reconstruction,and a lower bound was derived.Then ...
Pei-dong YU   +3 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy