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

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Document pages: 5 pages

Abstract: The operation of an intelligent reflecting surface (IRS) under predictablereceiver mobility is investigated. We develop a continuous time system modelfor multipath channels and discuss the optimal IRS configuration with respectto received power, Doppler spread, and delay spread. It is shown that thereceived power can be maximized without adding Doppler spread to the system. Ina numerical case study, we show that an IRS having the size of just two largebillboards 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 equivalentlystrong, communication path that improves the link reliability.

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