Li Lihua Zhou Mingyu Zhang Xiaoxia Wang Haifeng Ping Zhang 0003 Adaptive Bit, Power Allocation and Sub-Carrier Coupling for AF-OFDM Relaying Systems. 1494-1498 2008 VTC Spring http://dx.doi.org/10.1109/VETECS.2008.350 conf/vtc/2008s db/conf/vtc/vtc2008s.html#LihuaMXHP08