Title : 
Improved Two-Point Codes on Hermitian Curves
         
        
            Author : 
Duursma, Iwan M. ; Kirov, Radoslav
         
        
            Author_Institution : 
Dept. of Math., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
         
        
        
        
        
            fDate : 
7/1/2011 12:00:00 AM
         
        
        
        
            Abstract : 
One-point codes on the Hermitian curve produce long codes with excellent parameters. Feng and Rao introduced a modified construction that improves the parameters while still using one-point divisors. A separate improvement of the parameters was introduced by Matthews considering the classical construction but with two-point divisors. Those two approaches are combined to describe an elementary construction of two-point improved codes. Upon analysis of their minimum distance and redundancy, it is observed that they improve on the previous constructions for a large range of designed distances.
         
        
            Keywords : 
algebraic geometric codes; error correction codes; Hermitian curves; algebraic geometric codes; error correcting codes; two point code; two point divisor; Equations; Error correction codes; Image coding; Indexes; Poles and zeros; Redundancy; Algebraic geometric codes; Hermitian curve; error-correcting codes; improved codes; two-point codes;
         
        
        
            Journal_Title : 
Information Theory, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TIT.2011.2146410