MISO Wireless Communication Systems via Intelligent Reflecting Surfaces

Understand

Intelligent reflecting surfaces (IRSs) have received considerable attention from the wireless communications research community recently.

• In particular, as low-cost passive devices, IRSs enable the control of the wireless propagation environment, which is not possible in conventional wireless networks.
• To take full advantage of such IRS-assisted communication systems, both the beamformer at the access point (AP) and the phase shifts at the IRS need to be optimally designed.
• However, thus far, the optimal design is not well understood.