URL: http://arxiv.org/abs/1910.02398
Introduce a distributed IRS aided mmW system to support multi-user transmission.
Consider multi-user interference, study a joint active and passive beamforming problem for weighted sum-rate maximization.
Algorithm: alternating iterative algorithm with closed-form expressions and quantitative projection method for the IRS with discrete phase shifts.
Passive beamforming (PBF): reflect beamforming by the phase shifters at the IRS ---
Active beamforming (ABF): precoding operation at the base station (BS) --- P
