Title : 
New upper bounds on the size of codes correcting asymmetric errors (Corresp.)
         
        
            Author : 
Weber, J.H. ; de Vroedt, C. ; Boekee, D.E.
         
        
        
        
        
            fDate : 
5/1/1987 12:00:00 AM
         
        
        
        
            Abstract : 
New upper bounds on the size of codes correcting asymmetric errors are derived by sharpening some of the constraints in the integer programming problem of Delsarte and Piret. It is shown that their code for length 

 and asymmetric distance 

 is optimal.
 
         
        
            Keywords : 
Error-correction coding; Block codes; Constraint theory; Error correction codes; Hamming distance; Informatics; Information theory; Linear programming; Mathematics; Upper bound;
         
        
        
            Journal_Title : 
Information Theory, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TIT.1987.1057301