Fig. 6From: Energy-efficient resource management for OFDM modulated bidirectional relaying with quality-of-service constraintTotal transmit power and outage probability versus \(K\), where \(r = 10{\text{bit/s/Hz}}\), \(d_{{{\text{AR}}}} = 0.5\) and \(Q_{{{\text{out}}}} = 0.01\).Back to article page