نتایج جستجو برای: کد bch

تعداد نتایج: 7469  

2014
MUHAMMAD ZULFIQAR

The theory of fuzzy sets, which was initiated by Zadeh in his seminal paper [33] in 1965, was applied to generalize some of the basic concepts of algebra. The fuzzy algebraic structures play a vital role in mathematics with wide applications in many other branches such as theoretical physics, computer sciences, control engineering, information sciences, coding theory, logic, set theory, real an...

Journal: :Discrete Mathematics 2017
Hao Liu Cunsheng Ding Chengju Li

BCH codes have been studied for over fifty years and widely employed in consumer devices, communication systems, and data storage systems. However, the dimension of BCH codes is settled only for a very small number of cases. In this paper, we study the dimensions of BCH codes over finite fields with three types of lengths n, namely n = qm − 1, n = (qm − 1)/(q− 1) and n = qm +1. For narrow-sense...

2012
LENG RiGuang MA Zhi

Two code constructions generating new families of good nonbinary asymmetric quantum BCH codes and good nonbinary subsystem BCH codes are presented in this paper. The first one is derived from q-ary Steane’s enlargement of CSS codes applied to nonnarrow-sense BCH codes. The second one is derived from the method of defining sets of classical cyclic codes. The asymmetric quantum BCH codes and subs...

Journal: :CoRR 2016
Shuxing Li Cunsheng Ding Maosheng Xiong Gennian Ge

Cyclic codes over finite fields are widely employed in communication systems, storage devices and consumer electronics, as they have efficient encoding and decoding algorithms. BCH codes, as a special subclass of cyclic codes, are in most cases among the best cyclic codes. A subclass of good BCH codes are the narrow-sense BCH codes over GF(q) with length n = (qm−1)/(q−1). Little is known about ...

Journal: :Biological & pharmaceutical bulletin 2010
Chun Sung Kim In-Sung Moon Ju-Hyun Park Woo-Cheol Shin Hong Sung Chun Sook-Young Lee Joong-Ki Kook Heung-Joong Kim Joo-Cheol Park Hitoshi Endou Yoshikatsu Kanai Byung-Kwon Lee Do Kyung Kim

The purpose of this study was to examine the effect of 2-aminobicyclo-(2,2,1)-heptane-2-carboxylic acid (BCH), an inhibitor of L-type amino acid transporters, on the cell growth suppression in KB human oral cancer cells and to study the roles of cell cycle regulatory factors in the BCH-induced growth inhibition. The effect of BCH on cell growth suppression and the influence of BCH to cell cycle...

Journal: :Finite Fields and Their Applications 2017
Cunsheng Ding Cuiling Fan Zhengchun Zhou

Reed-Solomon codes, a type of BCH codes, are widely employed in communication systems, storage devices and consumer electronics. This fact demonstrates the importance of BCH codes – a family of cyclic codes – in practice. In theory, BCH codes are among the best cyclic codes in terms of their error-correcting capability. A subclass of BCH codes are the narrow-sense primitive BCH codes. However, ...

Journal: :Int. J. Math. Mathematical Sciences 2004
Eun Hwan Roh

We define the notion of radical in BCH-algebra and investigate the structure of [X; k], a viewpoint of radical in BCH-algebras. 1. Introduction. In 1966, Imai and Iséki [8] and Iséki [9] introduced two classes of abstract algebras: BCK-algebras and BCI-algebras. It is known that the class of BCK-algebras is a proper subclass of the class of BCI-algebras. In 1983, Hu and Li [5, 6] introduced a w...

2015
Rémi Géraud Diana Maimut David Naccache Rodrigo Portella do Canto Emil Simion

Modular reduction is the basic building block of many publickey cryptosystems. BCH codes require repeated polynomial reductions modulo the same constant polynomial. This is conceptually very similar to the implementation of public-key cryptography where repeated modular reduction in Zn or Zp are required for some fixed n or p. It is hence natural to try and transfer the modular reduction expert...

2015
Shu Lin Daniel J Costello

VLSI Architectures for Modern Error-Correcting Codes CRC Press Book. Reed-Solomon (RS) and Bose-Chaudhuri-Hocquenghem (BCH) codes, and binary. An important class of multipleerror-correcting linear cyclic codes is the class of BCH codes. In fact, BCH code is a generalization of the cyclic Hamming codes. Error correction codes (ECCs) are deployed in digital communication systems to tion 4 recalls...

Journal: :مهندسی برق دانشگاه تبریز 0
محمدمهدی محدث دانشگاه علم و صنعت ایران محمدحسین کهایی عضو هیئت علمی دانشگاه علم و صنعت ایران

چکیده: ماتریس­های نمونه­برداری نقش اساسی در حسگری فشرده دارند. این مـاتریس­ها به­صـورت تصـادفی و یقینی قابل ساخت هستند. ماتریس­های یقینی به علت اینکه حافظه کم­تری برای ذخیره­سازی نیاز دارند موردتوجه زیادی قرار گرفته­اند. در این مقاله دسته­ای از ماتریس­های حسگری یقینی، با استفاده از توابع هش ساخته می­شوند. برای این منظور ابتدا یک ماتریس کد اولیه ساخته می­شود، سپس با استفاده از ماتریس توابع هش، ی...

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