Intelligent Reflecting Surface Backscatter Enabled Uplink Coordinated Multi-Cell MIMO Network

This paper proposes an intelligent reflecting surface (IRS) backscatter based uplink coordinated transmission strategy for a radio cellular network, where IRS serves as transmitter enabling from each user to the associated base station (BS). To be specific, considered network is made up of multiple cells, which consists one multi-antenna BS and its served users. While power beacon (PB) deployed radiate energy-bearing electromagnetic wave, signal received by modulated send connective user’s information BS. Based on such frame, this aims maximize weighted sum rate (WSR) under constraints total transmit phase shifts joint optimization active beamforming at PB, passive IRSs scheduling. address challenging problem, fractional programming (FP), alternative bipartite matching are employed convert logarithm objective function into more tractable form handle variables. The simulation results demonstrate achievable WSR network.