[1] Nabar R U, Blcskei H, Kneubühler F W. Fading relay channels: performance limits and space-time signal design[J]. IEEE Journal on Selected Areas in Communications, 2004, 22(6): 1099-1109.[2] Azarian K, Gamal H E, Schniter P. On the achievable diversity-multiplexing tradeoff in half-duplex cooperative channels[J]. IEEE Transactions on Information Theory, 2005, 51(11): 4152-4172.[3] Melda Y, Elza E. Multiple-antenna cooperative wireless systems: a diversity-multiplexing tradeoff perspective[J]. IEEE Transactions on Information Theory, 2007, 53(10): 3371-3393.[4] Yang S, Belfiore J C. Optimal space-time codes for the MIMO amplify-and-forward cooperative channel[J]. IEEE Transactions on Information Theory, 2007, 53(2): 647-663.[5] Ding Y, Zhang J K, Wong K M. Optimal precoder for amplifyand-forward half-duplex relay system[J]. IEEE Transactions on Wireless Communications, 2008, 7(8): 2890-2895.[6] Leonardo J R, Nghi H T, Tho L N. Bandwidth-efficient bit-interleaved coded modulation over NAF relay channels: error performance and precoder design [J]. IEEE Transactions on Vehicular Technology, 2011, 60(5): 2086-2101.[7] Kwon U K, Choi C H, Im G H. Full-rate cooperative communications with spatial diversity for half-duplex uplink relay channels[J]. IEEE Transactions on Wireless Communications, 2009, 8(11): 5449-5454.[8] Simon M K, Alouini M S. Digital communication over fading channels[M]. New York: Wiley, 2000.[9] Proakis J G, Salehi M. Digital communications (the Fourth Edition) [M]. New York: McGraw-Hill, 2001. |