A Hybrid Relay and Intelligent Reflecting Surface Network and Its Ergodic Performance Analysis
Zaid Abdullah, Gaojie Chen, Sangarapillai Lambotharan, Jonathon A. Chambers
Abstract
This letter proposes a novel hybrid relay and Intelligent Reflecting Surface (IRS) assisted system for future wireless networks. We demonstrate that for practical scenarios where the amount of radiated power and/or the number of reflecting elements are/is limited, the performance of an IRS-supported system can be significantly enhanced by utilizing a simple Decode-and-Forward (DF) relay. Tight upper bounds for the ergodic capacity are derived for the proposed scheme under different channel environments, and shown to closely match Monte-Carlo simulations.
Topics & Concepts
RelayErgodic theoryComputer scienceWirelessWireless networkMonte Carlo methodTopology (electrical circuits)Relay channelChannel (broadcasting)Simple (philosophy)Power (physics)Computer networkTelecommunicationsMathematicsPhysicsStatisticsMathematical analysisQuantum mechanicsPhilosophyEpistemologyCombinatoricsAdvanced Wireless Communication TechnologiesUAV Applications and OptimizationCooperative Communication and Network Coding