Energy Efficiency Maximized Resource Allocation for Opportunistic Relay-Aided OFDMA Downlink with Subcarrier Pairing

Algorithm 3

The algorithm to find .

compute . with (25);

compute ; and ;

solve (P5) for its optimum solution with

the Hungarian algorithm;

construct the optimum for (P4) by assigning for every

combination of and , all entries in to

zero, except for the one with the metric equal to to .

   is output as .