[1] H. H. Sneessens and L. Vandendorpe, “Soft Decode and forward Improves Cooperative Communications,” 3G 2005—6th IEE International Conference on 3G & Beyond, London, 7-9 November 2005.
[2] Y. Li, B. Vucetic, T. F. Wong and M. Dohler, “Distributed Turbo Coding with Soft Information Relaying in Multihop Relay Networks,” IEEE Journal on Selected Areas in Communications, Vol. 24, No. 11, 2006, pp. 2040-2050.
[3] J. Laneman, D. Tse and G. Wornell, “Cooperative Diversity in Wireless Networks: Efficient Protocols and Outage Behaviour,” IEEE Transactions on Information Theory, Vol. 50, No. 12, 2004, pp. 3062-3080.
[4] K. Gomadam and S. A. Jafar, “Optimal Relay Functionality for SNR Maximization in Memoryless Relay Networks,” IEEE Journal on Selected Areas in Communications, Vol. 25, No. 2, 2007, pp. 390-401.
[5] P. Weitkemper, D. Wübben, V. Kühn and K. D. Kammeyer, “Soft Information Relaying for Wireless Networks with Error-Prone Source-Relay Link,” Proceedings of 7th International ITG Conference on Source and Channel Coding, Ulm, 14-16 January 2008.
[6] R. Thobaben, “On Distributed Codes with Noisy Relays,” In Proceedings of Asilomar Conference on Signals, Systems & Computers, Pacific Grove, 26-29 October 2008.
[7] A. Nosratinia and T. E. Hunter, “Diversity through Coded Cooperation,” IEEE Transactions on Wireless Communications, Vol. 5, No. 2, February 2006, pp. 283-289.
[8] T. Wang, A. Cano, G. Giannakis and N. Laneman, “High Performance Cooperative Demodulation with Decode-and-Forward Relays,” IEEE Transactions on Wireless Communications, Vol. 55, No. 7, 2007, pp. 1427- 1438.
[9] A. Chakrabarti, A. de Baynast, A. Sabharwal and B. Aazhang, “Low Density Parity Check Codes for the Relay Channel”, IEEE Journal on Selected Areas in Communications, Vol. 25, No. 2, 2007, pp. 280-291.
[10] E. Biglieri, J. Proakis and S. Shamai, “Fading Channels: Information-Theoretic and Communications Aspects,” IEEE Transactions on Information Theory, Vol. 44, No. 6, 1998, pp. 2619-2692.
[11] A. A. Aziz, Y. Iwanami and E. Okamoto, “Efficient Combining Technique with a Low-Complexity Detect-and-Forward Relay for Cooperative Diversity Scheme,” Proceedings of TENCON 2009, Singapore City, 23-26 November 2009.
[12] A. A. Aziz, Y. Iwanami and E. Okamoto, “On the Improvement of Maximum Likelihood in Multiple Relay Systems,” Proceedings of WCNC, Sydney, 18-21 April 2010, pp. 1-6.
[13] J. Hagenauer, E. Offer and L. Papke, “Iterative Decoding of Binary Block and Convolutional Codes,” IEEE Transactions on Information Theory, Vol. 42, No. 2, 1996, pp. 429-445.
[14] V. Aue and R. Nuessgen, “Method for Generating Soft-Bit Information from Gray Coded Signals,” U.S. Patent 20040096007, May 2004.
[15] K. S. Kim, K. Hyun, C. W. Yu, Y. O. Park, D. Yoon and S. K. Park, “General Log-Likelihood Ratio Expression and Its Implementation Algorithm for Gray-Coded QAM Signals,” ETRI Journal, Vol. 28, No. 3, 2006, pp. 291- 300.