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Performance Analysis of Fluid Antenna Multiple Access Assisted Wireless Powered Communication Network

Year: 2025

Type: article

Abstract: This paper investigates a novel wireless powered communication network (WPCN) enabled by fluid antenna multiple access (FAMA). In the proposed system, a hybrid access point (HAP) equipped with multiple fixed-position antennas (FPA) delivers integrated data and energy transfer (IDET) services. Each low-power device is equipped with a single fluid antenna (FA) and utilizes the harvested energy to support its uplink communication. A block-correlation fading channel model is adopted to analyze the outage probabilities of downlink and uplink wireless data transfer (WDT) under various port selection strategies, including downlink signal-to-interference ratio-based port selection (DSPS), downlink energy-harvesting-power-based port selection (DEPS), uplink signal-to-noise ratio-based port selection (USPS), and uplink channel-based port selection (UCPS). To facilitate analysis, a step function approximation (SFA) method is proposed and then employed to obtain tractable expressions, including simplified integral forms. Moreover, lower bounds for the uplink WDT outage probability are derived. Numerical results validate the accuracy of the theoretical analysis and provide useful insights for system design.

Source: IEEE Journal on Selected Areas in Communications

DOI: 10.1109/jsac.2025.3615178

Authors: Xiao Lin, Yizhe Zhao, Halvin Yang, Jie Hu

Institutions: University of Electronic Science and Technology of China, Loughborough University

Language: English

Topic: Energy Harvesting in Wireless Networks

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: green

Funders: National Natural Science Foundation of China, Natural Science Foundation of Sichuan Province