Dual-hop relaying networks over Nakagami-m fading channels - Datsikas, C.K.; Tombras, G.S.; Sagias, N.C.; Lazarakis, F.I.; Alexandropoulos, G.C.; Alexandridis, A.A.; Dangakis, K.P. (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, 2007)