Performance Impact of Channel Aging and Phase Noise on Intelligent Reflecting Surface
Wei Jiang, Hans D. Schotten
Abstract
<p>This paper 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 We first model mathematically the outdated channel state information (CSI) due to Doppler shifts and phase noise stemming from hardware impairment.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.</p>
Topics & Concepts
Channel (broadcasting)Noise (video)Channel state informationWirelessComputer sciencePhase noisePhase (matter)Doppler effectSpectral efficiencyElectronic engineeringExpression (computer science)TelecommunicationsEngineeringPhysicsArtificial intelligenceProgramming languageQuantum mechanicsAstronomyImage (mathematics)Advanced Wireless Communication TechnologiesOptical Wireless Communication TechnologiesSatellite Communication Systems