Table 1 Power minimization or EE maximization in RIS-assisted wireless networks
References | System setup | Objective | Design variables | Decoupling |
|---|---|---|---|---|
[15] | MISO downlink | Min.transmit power | Transmit and passive beamforming | AO |
[5] | MISO downlink-single carrier | Max. energy efficiency | Transmit and passive beamforming, On-off status of each RIS | AO |
[16] | MISO downlink | Min.transmit power | Transmit beamforming, discrete phase control | AO |
[17] | RIS-aided MISO downlink system | EE maximization | Active and passive beamforming | AO |
[4] | MISO downlink-single carrier | Max. energy efficiency | Transmit and passive beamforming, | AO |