T. M. Cover and A. A. , Capacity theorems for the relay channel, IEEE Transactions on Information Theory, vol.25, issue.5, pp.572-584, 1979.
DOI : 10.1109/TIT.1979.1056084

A. A. Gamal, M. Mohseni, and S. Zahedi, Bounds on capacity and minimum energy-per-bit for AWGN relay channels, IEEE Transactions on Information Theory, vol.52, issue.4, pp.1545-1561, 2006.
DOI : 10.1109/TIT.2006.871579

S. Yang and J. Belfiore, Optimal Space–Time Codes for the MIMO Amplify-and-Forward Cooperative Channel, IEEE Transactions on Information Theory, vol.53, issue.2, pp.647-663, 2007.
DOI : 10.1109/TIT.2006.888998

I. Abou-faycal and M. Médard, Optimal uncoded regeneration for binary antipodal signaling, 2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577), pp.742-746, 2004.
DOI : 10.1109/ICC.2004.1312600

K. S. Gomadam and S. A. Jafar, On the Capacity of Memoryless Relay Networks, 2006 IEEE International Conference on Communications, 2006.
DOI : 10.1109/ICC.2006.255036

A. Kurtenbach and P. Wintz, Quantizing for Noisy Channels, IEEE Transactions on Communications, vol.17, issue.2, pp.291-302, 1969.
DOI : 10.1109/TCOM.1969.1090091