On Hybrid-ARQ-Based Intelligent Reflecting Surface-Assisted Communication System
Peer reviewed, Journal article
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Original versionElectronics Letters. 2021, . 10.1049/ell2.12091
The intelligent reflecting surface (IRS) is an emerging technique to extend the wireless coverage. In this letter, the performance of hybrid automatic repeat request (hybrid-ARQ) for an IRS-assisted system is analyzed. More specifically, the outage performance of the IRS-aided system using hybrid-ARQ protocol with chase combining, is studied. Asymptotic analysis also show that the outage performance improves better than linearly by increasing number of reflectors of the IRS-aided system. The results also verify the potential of combining the ARQ scheme in the link layer of the IRS-aided system and demonstrate that very small change of path loss condition can impact the performance largely.