Title
Further results on Goppa codes and their applications to constructing efficient binary codes
Abstract
It is shown that Goppa codes with Goppa polynomial{g(z)}^{q}have the parameters: lengthn leq q^{m} - s_{o}, number of check symbolsn - k leq m (q - 1) (deg g), and minimum distanced geq q (deg g) + 1, whereqis a prime power,mis an integer,g(z )is an arbitrary polynomial overGF(q^{m}), and so is the number of roots ofg(z)which belong toGF(q^{m}). It is also shown that all binary Goppa codes of lengthn leq 2^{m} - s_{o}satisfy the relationn - k leq m (d - 1)/2. A new class of binary codes withn leq 2^{ m} + ms _{0}, n - k leq m (deg g) + s_{0}, andd leq 2(deg g) + 1is constructed, as well as another class of binary codes with slightly different parameters. Some of those codes are proved superior to the best codes previously known. Finally, a decoding algorithm is given for the codes constructed which uses Euclid's algorithm.
Year
DOI
Venue
1976
10.1109/TIT.1976.1055610
Information Theory, IEEE Transactions  
Keywords
Field
DocType
Goppa codes
Integer,Discrete mathematics,Combinatorics,Polynomial,Binary code,Decoding methods,Prime power,Mathematics,Binary number
Journal
Volume
Issue
ISSN
22
5
0018-9448
Citations 
PageRank 
References 
25
5.75
17
Authors
4
Name
Order
Citations
PageRank
Yasuo Sugiyama1220131.91
Masao Kasahara2290147.60
Shigeichi Hirasawa37853.22
Toshihiko Namekawa490107.56