Transmit Beamforming Design for ISAC with Stacked Intelligent Metasurfaces

2024/09/05 by Shunyu Li, Li, Shunyu, Fan Zhang +9 · 1 voice · 11 citations
Engineering · #Advanced Antenna and Metasurface Technologies #Advanced Wireless Communication Technologies #Antenna Design and Analysis #FOS: Electrical engineering #Signal Processing (eess.SP) #eess.SP #electronic engineering #information engineering

paper · pdf · doi:10.48550/arxiv.2409.03259

openalex publication_date 2024/09/05 · arxiv published 2024/09/05 · arxiv updated 2024/12/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

This paper proposes a transmit beamforming strategy for the integrated sensing and communication (ISAC) systems enabled by the novel stacked intelligent metasurface (SIM) architecture, where the base station (BS) simultaneously performs downlink communication and radar target detection via different beams. To ensure superior dual-function performance simultaneously, we design the multi-layer cascading beamformer by maximizing the sum rate of the users while optimally shaping the normalized beam pattern for detection. A dual-normalized differential gradient descent (D3) algorithm is further proposed to solve the resulting non-convex multi-objective problem (MOP), where gradient differences and dual normalization are employed to ensure a fair trade-off between communication and sensing objectives. Numerical results demonstrate the superiority of the proposed beamforming design in terms of balancing communication and sensing performance.

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• Low-Altitude Wireless Networks: A Comprehensive Survey
• Deep Complex-valued Neural-Network Modeling and Optimization of Stacked Intelligent Surfaces
• Intelligent Metasurface-Enabled Integrated Sensing and Communication: Unified Framework and Key Technologies
• Dual-Polarization Stacked Intelligent Metasurfaces for Holographic MIMO
• Movable Subarray-Aided ISAC in Hybrid Near-Far Field Channels
• Optimal Power Allocation for OFDM-based Ranging Using Random Communication Signals
• Max-Min Fairness for Stacked Intelligent Metasurface-Assisted Multi-User MISO Systems

Discussions

• 🚀 New research on #ISAC using #Stacked #Intelligent #Metasurfaces (#SIM)! Multi-layer passive beamforming cuts hardware costs while achieving dual communication-sensing functions. #D³ #algorithm deli [bsky, 0 points, 0 comments]

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