... framewor k, in the second step of whichwe consider the compromise of user rate maximizationand power consumption. T herefore, fairness is achievedat the cost of reduction on the sum rate of users. ... the capacityofarelayuserisconfinedbytheminimumSINR of the two kinds of time slots. To get the balancein the two slots, the introduction of the third item isnecessary. The squared term in the expression ... interference,power consumption and CSI overheads. The proof of the Pareto efficiency of transmitting power strategy, as wellas the certification of the identity of NE and the optimalsolution, needs to...