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We study the generalized rank weight distribution of a linear code. First, we provide a MacWilliams-type identity which relates the distributions of a code and its dual. Then, we give a formula for the enumerator polynomial. Finally, we…

Information Theory · Computer Science 2026-02-12 Julien Molina

The determination of weight distribution of cyclic codes involves evaluation of Gauss sums and exponential sums. Despite of some cases where a neat expression is available, the computation is generally rather complicated. In this note, we…

Information Theory · Computer Science 2017-03-21 Shuxing Li , Sihuang Hu , Tao Feng , Gennian Ge

We introduce a formula for determining the number of codewords of weight 2 in cyclic codes and provide results related to the count of codewords with weight 3. Additionally, we establish a recursive relationship for binary cyclic codes that…

Number Theory · Mathematics 2025-06-03 José G. Coelho , F. E. Brochero Martínez

In this letter, we introduce an efficient method for estimating weight distributions of polar codes and polarization-adjusted convolutional (PAC) codes. Based on a recursive algorithm of computing the weight enumerating functions of polar…

Information Theory · Computer Science 2023-10-13 Junhua You , Shaohua Wu , Yajing Deng , Qinyu Zhang

Determining the weight distribution of a linear code is a classical and fundamental topic in coding theory that has been extensively investigated. Repeated-root cyclic codes, which form a significant subclass of error-correcting codes, have…

Information Theory · Computer Science 2025-08-07 Wei Zhao , Weixian Li , Shenghao Yang , Fang-Wei Fu , Kenneth W. Shum

A fundamental property of codes, the second-order weight distribution, is proposed to solve the problems such as computing second moments of weight distributions of linear code ensembles. A series of results, parallel to those for weight…

Information Theory · Computer Science 2011-11-15 Shengtian Yang

A statistical estimation algorithm of the weight distribution of a linear code is shown, based on using its generator matrix as a compression function on random bit strings.

Information Theory · Computer Science 2018-06-07 Alessandro Tomasi , Alessio Meneghetti

The MacWilliams identity, which relates the weight distribution of a code to the weight distribution of its dual code, is useful in determining the weight distribution of codes. In this paper, we derive the MacWilliams identity for linear…

Information Theory · Computer Science 2007-11-28 Maximilien Gadouleau , Zhiyuan Yan

Cyclic codes have been widely used in digital communication systems and consume electronics as they have efficient encoding and decoding algorithms. The weight distribution of cyclic codes has been an important topic of study for many…

Information Theory · Computer Science 2013-01-15 Jing Yang , Maosheng Xiong , Cunsheng Ding

The duals of cyclic codes with two zeros have been extensively studied, and their weight distributions have recently been evaluated in some cases. In this note, we determine the weight distribution of a certain new class of such codes by…

Combinatorics · Mathematics 2012-06-18 Tao Feng , Koji Momihara

Recently, the weight distributions of the duals of the cyclic codes with two zeros have been obtained for several cases. In this paper we provide a slightly different approach toward the general problem and use it to solve one more special…

Number Theory · Mathematics 2011-11-15 Maosheng Xiong

In this paper, a family of five-weight reducible cyclic codes is presented. Furthermore, the weight distribution of these cyclic codes is determined, which follows from the determination of value distributions of certain exponential sums.

Information Theory · Computer Science 2015-02-13 Yan Liu , Haode Yan

Usually, it is difficult to determine the weight distribution of an irreducible cyclic code. In this paper, we discuss the case when an irreducible cyclic code has the maximal number of distinct nonzero weights and give a necessary and…

Information Theory · Computer Science 2012-05-08 Chunming Tang , Yanfeng Qi , Maozhi Xu , Baocheng Wang , Yixian Yang

In this expository paper we show how one can, in a uniform way, calculate the weight distributions of some well-known binary cyclic codes. The codes are related to certain families of curves, and the weight distributions are related to the…

Number Theory · Mathematics 2016-09-06 René Schoof

Recently, the weight distributions of the duals of the cyclic codes with two zeros have been obtained for several cases. In this paper we solve one more special case. The problem of finding the weight distribution is transformed into a…

Number Theory · Mathematics 2012-10-17 Maosheng Xiong

Cyclic codes with two zeros and their dual codes as a practically and theoretically interesting class of linear codes, have been studied for many years. However, the weight distributions of cyclic codes are difficult to determine. From…

Information Theory · Computer Science 2015-03-19 Baocheng Wang , Chunming Tang , Yanfeng Qi , Yixian Yang , Maozhi Xu

Irreducible cyclic codes are an interesting type of codes and have applications in space communications. They have been studied for decades and a lot of progress has been made. The objectives of this paper are to survey and extend earlier…

Information Theory · Computer Science 2011-08-22 Cunsheng Ding , Jing Yang

Cyclic codes are an interesting type of linear codes and have wide applications in communication and storage systems due to their efficient encoding and decoding algorithms. Cyclic codes have been studied for many years, but their weight…

Information Theory · Computer Science 2013-06-25 Chengju Li , Qin Yue

Cyclic codes are an important class of linear codes, whose weight distribution have been extensively studied. So far, most of previous results obtained were for cyclic codes with no more than three zeros. Recently, \cite{Y-X-D12}…

Number Theory · Mathematics 2014-05-27 Jing Yang , Lingli Xia , Maosheng Xiong

This paper investigates the relationship between the rank weight distribution of a linear code and that of its dual code. The main result of this paper is that, similar to the MacWilliams identity for the Hamming metric, the rank weight…

Information Theory · Computer Science 2007-07-13 Maximilien Gadouleau , Zhiyuan Yan
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