Title : 
On the Relay Channel With Receiver–Transmitter Feedback
         
        
            Author : 
Bross, Shraga I. ; Wigger, Michèle A.
         
        
            Author_Institution : 
Sch. of Eng., Bar-Ilan Univ., Ramat Gan
         
        
        
        
        
        
        
            Abstract : 
An achievable rate for the discrete memoryless relay channel with receiver-transmitter feedback is proposed based on block-Markov superposition encoding. The achievable rate can also be extended to Gaussian channels. A second achievable rate for the Gaussian relay channel based on a Schalkwijk-Kailath type scheme is presented. For some channels both achievable rates strictly improve upon all previously known achievable rates. For the discrete memoryless relay channel also a converse result is provided.
         
        
            Keywords : 
Gaussian channels; Markov processes; channel coding; memoryless systems; receivers; transmitters; Gaussian channel; Schalkwijk-Kailath type scheme; block-Markov superposition encoding; discrete memoryless relay channel; receiver-transmitter feedback; Channel capacity; Decoding; Degradation; Digital relays; Feedback; Gaussian channels; Helium; Information theory; Transmitters; Upper bound; Discrete memoryless relay channel; receiver–transmitter feedback;
         
        
        
            Journal_Title : 
Information Theory, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TIT.2008.2008144