Intelligent Reflecting Surface Operation under Predictable Receiver Mobility: A Continuous Time Propagation Model

Abstract

The operation of an intelligent reflecting surface (IRS) under predictable receiver mobility is investigated. We develop a continuous time system model for multipath channels and discuss the optimal IRS configuration with respect to received power, Doppler spread, and delay spread. It is shown that the received power can be maximized without adding Doppler spread to the system. In a numerical case study, we show that an IRS having the size of just two large billboards can improve the link budget of ground to Low Earth Orbit (LEO) satellite links by up to 6 dB. It also adds a second, almost equivalently strong, communication path that improves the link reliability.

5 pages, 4 figures

References in corpus (2)

• Power Scaling Laws and Near-Field Behaviors of Massive MIMO and Intelligent Reflecting Surfaces
• Multi-Objective Signal Processing Optimization: The Way to Balance Conflicting Metrics in 5G Systems

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• Outage and Finite-SNR DMT Analysis for IRS-aided MIMO Systems: How Large IRSs Need to Be?
• Randomized Control of Wireless Temporal Coherence via Reconfigurable Intelligent Surface