Communication Dans Un Congrès Année : 2025

Multi-user Full-duplex Reconfigurable Intelligent Surface Assisted Wireless Powered IIoT Networks

Résumé

This paper investigates a full-duplex (FD) reconfigurable intelligent surface (RIS)-assisted wireless powered communication network (WPCN) in which FD multi-user (FD-MUs) industrial internet-of-things (IIoT) sensor devices with energy harvesting (EH) capabilities communicate with an FD hybridaccess point (FD-AP). The FD-AP with dual-set of multiple antennas use a set of antennas to beamform energy in downlink (DL) transmission and the other set of antennas to receive information signals in uplink (UL) transmission from the dual-set of single antenna FD-MUs. The FD-MUs use one single antenna to receive energy signals, while the other single antenna is used to transmit information. For comparison, two special cases of the FD-FD RIS-assisted WPCN IIoT network are considered. The first scenario considers an FD-HD (half-duplex) RIS-assisted WPCN IIoT network made up of a FD-AP and HD-MUs while the second comprises an HD-HD RIS-assisted WPCN IIoT network consisting of HD-AP and HD-MUs. We investigate the sum-rate performance of the FD-FD system with random IRS phase shifts and compare it to FD-HD and HD-HD system models. It is shown from simulation results that the FD-FD system outperforms the two special cases in the low transmit power regime.

Index Terms-Full duplex (FD), reconfigurable intelligent surface (RIS), spectral efficiency (SE), energy harvesting (EH).

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Dates et versions

hal-05063366 , version 1 (12-05-2025)

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Akwafo Reynah, Menanor Samuel K., Derek Kwaku Pobi Asiedu, Samir Saoudi, Lee Kyoung-Jae. Multi-user Full-duplex Reconfigurable Intelligent Surface Assisted Wireless Powered IIoT Networks. VTC2025-Spring: IEEE 101st Vehicular Technology Conference, IEEE, Jun 2025, Oslo (Norway), Norway. ⟨10.1109/VTC2025-Spring65109.2025.11174875⟩. ⟨hal-05063366⟩
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