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Performance Analysis of Multi-RIS-Aided mmWave MIMO Systems Using Poisson Point Processes
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DOI：10.1109/LSP.2023.3330128.png)
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Abstract
En 中文
Different from previous literature assuming either single reconfigurable intelligent surface (RIS) or multiple RISs at given locations, this letter first studies a multi-user millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) system aided by multiple RISs following Poisson point processes. Then we derive an accurate closed-form expression for the spectral efficiency of an arbitrary user and an approximation for the ergodic spectral efficiency of the cell. Moreover, we consider the hardware impairment and model a practical phase-dependent amplitude for each reflecting element. Finally, the simulation results verify the derivations and demonstrate that RISs can provide greater performance gain than the active nodes and require different deployment strategy, which is related to the number of RISs.
Keywords:
Radio frequency
Millimeter wave communication
Interference
Precoding
Signal to noise ratio
Hardware
Wireless networks
Reconfigurable intelligent surface (RIS)
massive multiple-input multiple-output (MIMO)
practical amplitude
stochastic geometry
Journal
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9.6
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Citations:
1.7W