Li-Fi Communication

Secure, High-Speed, RF-Free Connectivity

QualIMT Systems is building next-generation optical wireless communication solutions based on IEEE 802.11bb, the world’s first global standard for Li-Fi.
Our focus is on designing, prototyping, and validating Li-Fi systems that complement and extend traditional RF-based wireless networks for defence, aerospace, industrial, and smart infrastructure applications.

Our Vision for Li-Fi

QualIMT envisions Li-Fi as a core pillar of future wireless systems, working alongside RF to deliver:

  • Higher capacity
  • Better security
  • Greater spectrum efficiency
  • Mission-ready reliability

We are actively building Li-Fi reference platforms and link models that can evolve into deployable products and defence-grade solutions.

What We Offer

802.11bb-Based Li-Fi System Design

We design end-to-end Li-Fi communication architectures aligned with IEEE 802.11bb, covering:

  • Optical PHY layer modelling and waveform design

  • MAC-layer integration compatible with Wi-Fi ecosystems

  • Link budgeting, channel modelling, and BER performance analysis

  • System-level trade-offs between throughput, latency, and robustness

Our approach ensures standards-compliant, interoperable, and scalable Li-Fi deployments.

Li-Fi PHY & Modem Development

QualIMT specializes in physical-layer centric innovation, including:

  • Optical modulation and demodulation techniques

  • Adaptive data-rate and coding strategies

  • Impairment modelling (ambient light noise, multipath reflections, alignment loss)

  • MATLAB-based reference models and FPGA-ready algorithm design

These models serve as a foundation for silicon, FPGA, or SDR-based Li-Fi modems.

Hybrid RF–Li-Fi Networking

Li-Fi is not a replacement for RF — it is a powerful complement.

We enable:

  • Hybrid RF + Li-Fi architectures for resilient communications

  • Seamless traffic steering between RF and optical links

  • RF offloading in spectrum-congested or EMI-sensitive environments

  • Coexistence strategies for Wi-Fi, Li-Fi, and private wireless systems

This makes our solutions ideal for mission-critical and high-density environments.

Secure Optical Wireless Links

Li-Fi inherently offers physical-layer security advantages because light is spatially confined.

QualIMT enhances this with:

  • Secure association and authentication mechanisms

  • Encryption and key-management aligned with 802.11 security frameworks

  • Controlled optical coverage zones for classified or sensitive facilities

These capabilities are especially relevant for defence labs, command centers, and secure industrial zones.