Performance Impact of Channel Aging and Phase Noise on Intelligent Reflecting Surface
Wei Jiang, Hans D. Schotten
Abstract
This letter aims to clarify the impact of channel aging and phase noise on the performance of intelligent reflecting surface-aided wireless systems. We first model mathematically the outdated channel state information (CSI) due to Doppler shifts and phase noise stemming from hardware impairment. Then, a closed-form expression of achievable spectral efficiency under noisy and aged CSI is theoretically derived. Some typical simulation results to numerically demonstrate the performance impact are illustrated.
Topics & Concepts
Computer scienceNoise (video)Channel (broadcasting)Channel state informationPhase noiseWirelessSpectral efficiencyPhase (matter)Electronic engineeringTelecommunicationsPhysicsArtificial intelligenceEngineeringQuantum mechanicsImage (mathematics)Advanced Wireless Communication TechnologiesOptical Wireless Communication TechnologiesSatellite Communication Systems