Title : 
Precoded turbo code within 0.1 dB of Shannon limit
         
        
            Author : 
Tong, Shaocheng ; Zheng, Haomian ; Bai, Baoming
         
        
            Author_Institution : 
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China
         
        
        
        
        
        
        
            Abstract : 
The application of the precoding technique to turbo codes is investigated, resulting in a new class of turbo-like codes named precoded turbo codes. The introduction of a precoder provides a degree of freedom for code optimisation. As a result, an optimised rate-1/2 precoded turbo code with a threshold of 0.28 dB is designed using the EXIT chart.
         
        
            Keywords : 
information theory; turbo codes; Shannon limit; precoded turbo code;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el.2011.0722