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Reconfigurable Intelligent Surface for Mixed FSO-RF Systems with Co-Channel Interference
A. Sikri, , P. Saxena, M.R. Bhatnagar, G. Kaddoum
Published in Institute of Electrical and Electronics Engineers Inc.
Volume: 25
Issue: 5
Pages: 1605 - 1609
Reconfigurable intelligent surface (RIS) is an emerging technology that can achieve reconfigurable radio propagation environments for beyond 5G/6G wireless systems by smartly tuning the signal reflection via a large number of low-cost passive reflecting elements. In this letter, we investigate the effect of co-channel interference (CCI) on RIS-based dual-hop mixed free-space optical (FSO)-radio frequency (RF) communication systems. The source node, equipped with multiple FSO apertures, transmits subcarrier intensity modulated symbols on the FSO link subjected to Gamma-Gamma (GG) distributed atmospheric turbulence with pointing errors (PEs). It is assumed that the relay-RIS and RIS-destination links follow Rayleigh distribution. The destination node is corrupted by multiple CCI (each following Rayleigh distribution). The performance of the considered system is evaluated by deriving novel closed-form expressions for the outage probability (OP) and bit error rate (BER). It is shown through numerical results that RIS-based dual-hop mixed FSO-RF system provide a significant performance enhancement in comparison to a traditional dual-hop mixed FSO-RF system even in presence of CCI. © 1997-2012 IEEE.
About the journal
JournalData powered by TypesetIEEE Communications Letters
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
Open AccessNo