About the Z 4 - linear Reed - Muller ZRM − ( r , m − 1 ) and RM s ( r , m ) codes ?

نویسندگان

  • J. Rifà
  • L. Ronquillo
چکیده

Several different families of quaternary codes related to Reed-Muller binary linear codes can be found in the literature. Two definitions of such families are denoted as ZRM−(r,m) and {RMs(r,m)}. In the current paper ZRM−(r,m− 1) and {RMs(r,m)} codes are shown to be equal exactly for s = 0 (0 ≤ s ≤ bm−1 2 c). Therefore, for the above-mentioned value of s, Z4-linear Reed-Muller codes with the same parameters and properties as the usual binary linear Reed-Muller code are obtained with both definitions.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

On ZRM codes

Quaternary Z RM (r,m) codes were defined to study theZ4-linearity of ReedMuller codes. In the literature two different definitions of such codes can be found, denoted Z RM (r,m) and Z RM ∗(r,m). We will show that both definitions are equivalent exactly for those values of r such that their binary images are Reed-Muller codes. We will compute the rank and the kernel of their binary image.

متن کامل

On the non-minimality of the largest weight codewords in the binary Reed-Muller codes

The study of minimal codewords in linear codes was motivated by Massey who described how minimal codewords of a linear code define access structures for secret sharing schemes. As a consequence of his article, Borissov, Manev, and Nikova initiated the study of minimal codewords in the binary Reed-Muller codes. They counted the number of non-minimal codewords of weight 2d in the binary Reed-Mull...

متن کامل

On McEliece’s result about divisibility of the weights in the binary Reed-Muller codes

First, we give an alternative proof of the famous McEliece’s result about divisibility of the weights of the binary Reed-Muller codes fully relying on knowledge for Boolean functions. Second, we prove that any binary Reed-Muller code RM(r, m) contains codeword such that the highest power of 2 dividing its weight is exactly 2[(m−1)/r].

متن کامل

Decoding high rate Reed-Muller codes from random errors in near linear time

Reed-Muller codes encode an m-variate polynomial of degree k by evaluating it on all points in {0, 1}. We denote this code with RM(m, k). For k = m − r, its distance is 2 and so it cannot correct more than 2r−1 errors in the worst case. For random errors one may hope for a better result. Shannon (Bell System Technical Journal, 1948) proved that for codes of the same rate, one cannot correct mor...

متن کامل

On the Non-minimal Codewords in Binary Reed-Muller Codes

First, we compute the number of non-minimal codewords of weight 2dmin in the binary Reed-Muller code RM(r,m). Second, we prove that all codewords of weight greater than 2m − 2m−r+1 in binary RM(r,m), are non-minimal.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008