Year: 2025
Type: article
Abstract: This work investigates Distributed Detection (DD) in Wireless Sensor Networks (WSNs) utilizing channel-aware binary-decision fusion over a shared flat-fading channel. A reconfigurable metasurface, positioned in the near-field of a limited number of receive antennas, is integrated to enable a holographic Decision Fusion (DF) system. This approach minimizes the need for multiple RF chains while leveraging the benefits of a large array. The optimal fusion rule for a fixed metasurface configuration is derived, alongside two suboptimal joint fusion rule and metasurface design strategies. These suboptimal approaches strike a balance between reduced complexity and lower system knowledge requirements, making them practical alternatives. The design objective focuses on effectively conveying the information regarding the phenomenon of interest to the FC while promoting energy-efficient data analytics aligned with the Internet of Things (IoT) paradigm. Simulation results underscore the viability of holographic DF, demonstrating its advantages even with suboptimal designs and highlighting the significant energy-efficiency gains achieved by the proposed system.
Source: IEEE Internet of Things Journal
Language: English
Subfield: Computer Networks and Communications
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
Awards: G1190173965, G1309090239, G1463304763, G1617124451, Joint Sensing and Communications for Future Interactive, Immersive, and Intelligent Connectivity Beyond Communications, Beyond 5G mmWave Circuits, Antennas and RIS, G2382142159, G2559059231, G2987309065, Physics-based wireless AI providing scalability and efficiency, G3531172524, Power-efficient radio interface for sub-7GHz distributed massive MIMO infrastructUres, G4384862669, IntelligenT twinning of WIreless Networks for 6G, G6054797884, G6683820337, G8921317170
OpenAlex ID: W4410852509