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Fig. 4 | EURASIP Journal on Wireless Communications and Networking

Fig. 4

From: Performance analysis and power allocation strategy in single-antenna cognitive overlay systems

Fig. 4

Total power consumption as function of power allocation factor (δ = 0.1, 0.2, 0.3, 0.4), the iterative approach, and the proposed design. \(\left ({\sigma }_{T_{A},R_{A}}^{2}/{{\sigma }_{n}^{2}} = 0\, \text {dB}, {\sigma }_{T_{A},TB}^{2}/{{\sigma }_{n}^{2}} = 15\, \text {dB}, {\sigma }_{T_{B},R_{B}}^{2}/{{\sigma }_{n}^{2}} = {\sigma }_{T_{B},R_{A}}^{2}/{{\sigma }_{n}^{2}} = {{\sigma }_{h}^{2}}/{{\sigma }_{n}^{2}}\right)\)

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