Multidimensional Constellation Design Based on Geometric Shaping for MISO VLC With Per-LED Optical Power Constraints

Visible light communication (VLC) integrates illumination and communication, offering significant potential for 6G mobile communications. In 6G communications, reliability and low latency are critical. To meet these demands, finite blocklength codewords are employed for data transmission. For indoor VLC scenarios, multiple light-emitting diodes (LEDs) serve as transmitters, with each transmitter operating under distinct optical power constraints tailored to user requirements. In this paper, a multidimensional constellation design based on geometric shaping is proposed for multi-input single-output (MISO) VLC with per-LED optical power constraints. This design employs truncated cubic shaping to design the equivalent transmitted signal and decomposes it into transmitted signals using a partition-based greedy decomposition. The proposed scheme designs signals in the finite blocklength regime while adhering to per-LED optical power constraints. Simulation results for indoor MISO VLC systems demonstrate the advantages of the proposed scheme over benchmark schemes and quantify the performance gains as well as the gap to the Shannon limit.

• Publication year

  2025

• Venue

  IEEE Photonics Journal

• Publication date

  2025-12-01

• Fields of study

  Not labeled

• Identifiers
  DOI 10.1109/JPHOT.2025.3636909
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• Geometrically Shaped Constellation in Short-Packet Visible Light Communications for IIoT Applications

  2025influential reference
• GaN-Based Series Hybrid LED Array: A Dual-Function Light Source With Illumination and High-Speed Visible Light Communication Capabilities

  2024cited by this paper
• Delay Jitter Analysis for VLC Under Indoor Industrial Internet of Things Scenarios

  2024cited by this paper
• Spatial Constellation Design for MIMO Visible Light Communication Based on the Optimal Geometric Shaping

  2024cited by this paper
• Recent Advances and Future Perspectives in Optical Wireless Communication, Free Space Optical Communication and Sensing for 6G

  2024cited by this paper
• Robust Beamforming Design With Finite Blocklength for URLLC

  2023cited by this paper
• Key Technologies for High-Speed Si-Substrate LED Based Visible Light Communication

  2023cited by this paper
• Multiple Optical Beam Switching for Physical Layer Security of Visible Light Communications

  2022cited by this paper
• Modulation Precoding for MISO Visible Light Communications

  2021cited by this paper
• On the Capacity of MISO Optical Intensity Channels With Per-Antenna Intensity Constraints

  2021influential reference
• Low-Complexity Geometric Shaping

  2020cited by this paper
• FFT-Assisted Coded Modem for Intensity-Modulated Signals Under Peak and Average Power Constraints

  2020influential reference
• Tricolor visible-light laser diodes based visible light communication operated at 40.665 Gbit/s and 2 m free-space transmission.

  2019cited by this paper
• Intrinsic Robustness of MISO Visible Light Communications: Partial CSIT Can be as Useful as Perfect One

  2019cited by this paper
• Channel-Adaptive Space-Collaborative Constellation Design for MIMO VLC With Fast Maximum Likelihood Detection

  2017cited by this paper
• Fundamental Limits of Parallel Optical Wireless Channels: Capacity Results and Outage Formulation

  2017cited by this paper
• Multiuser MISO Transceiver Design for Indoor Downlink Visible Light Communication Under Per-LED Optical Power Constraints

  2015cited by this paper
• Channel capacity and non-uniform signalling for free-space optical intensity channels

  2009cited by this paper
• On the capacity of free-space optical intensity channels

  2008cited by this paper
• Fundamental analysis for visible-light communication system using LED lights

  2004cited by this paper
• Multidimensional constellations. I. Introduction, figures of merit, and generalized cross constellations

  1989cited by this paper
• 2020) Capacity and Optimum Signal Constellations for VLC Systems

  year unknowncited by this paper

• No citing papers are available for this paper.