Global Leading Market Research Publisher QYResearch announces the release of its latest report “Visible Light Communication System – Global Market Share and Ranking, Overall Sales and Demand Forecast 2026-2032″. Based on current situation and impact historical analysis (2021-2025) and forecast calculations (2026-2032), this report provides a comprehensive analysis of the global Visible Light Communication System market, including market size, share, demand, industry development status, and forecasts for the next few years.
For telecom infrastructure planners, IoT architects, and smart building developers: Radio frequency (RF) spectrum is becoming congested, and in many environments—hospitals, aircraft, underwater, nuclear facilities—RF communication is restricted or unreliable. Traditional wireless technologies (Wi-Fi, Bluetooth, cellular) face interference, security vulnerabilities, and licensing costs. Visible light communication (VLC) systems solve these critical pain points by using existing LED lighting infrastructure to transmit data at speeds up to 500 Mbit/s over short distances, with inherent security (light does not penetrate walls) and no RF interference. The global market for Visible Light Communication System was estimated to be worth US$ 650 million in 2024 and is forecast to a readjusted size of US$ 935 million by 2031 with a CAGR of 5.4% during the forecast period 2025-2031.
In telecommunications, visible light communication (VLC) is the use of visible light (light with a frequency of 400–800 THz/wavelength of 780–375 nm) as a transmission medium. VLC is a subset of optical wireless communications technologies. The technology uses fluorescent lamps (ordinary lamps, not special communications devices) to transmit signals at 10 kbit/s, or LEDs for up to 500 Mbit/s over short distances. Specially designed electronic devices generally containing a photodiode receive signals from light sources, although in some cases a cell phone camera or a digital camera will be sufficient. The image sensor used in these devices is in fact an array of photodiodes (pixels) and in some applications its use may be preferred over a single photodiode. Such a sensor may provide either multi-channel (down to 1 pixel = 1 channel) or a spatial awareness of multiple light sources. VLC can be used as a communications medium for ubiquitous computing, because light-producing devices (such as indoor/outdoor lamps, TVs, traffic signs, commercial displays and car headlights/taillights) are used everywhere.
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1. Market Definition and Core Keywords
A visible light communication (VLC) system uses light-emitting diodes (LEDs) or fluorescent lamps to transmit data by modulating light intensity at speeds imperceptible to the human eye. A photodiode or image sensor (camera) receives the signal and demodulates it back into data. VLC operates in the 400-800 THz spectrum—10,000 times wider than the entire RF spectrum—eliminating congestion and interference.
This report centers on three foundational industry keywords: visible light communication system, Li-Fi technology, and optical wireless communication. These capabilities define the competitive landscape, component types (hardware, software, services), and application suitability for underwater communication, cellular offload, indoor positioning, and RF-sensitive environments.
2. Key Industry Trends (2025–2026 Data Update)
Based exclusively on QYResearch market data, corporate annual reports, and government publications, the following trends are shaping the visible light communication system market:
Trend 1: Underwater Communication – The Killer Application
RF waves attenuate rapidly in seawater (skin depth <1 cm at 1 MHz), making traditional wireless communication impossible underwater. VLC using blue-green light (450-550 nm) penetrates seawater up to 100 meters. PureLiFi’s 2025 annual report noted that its underwater VLC product line grew 67% year-over-year, driven by offshore oil & gas, underwater robotics (ROVs/AUVs), and defense applications. A case study: A subsea mining company deployed Huawei’s underwater VLC system for real-time ROV control at 2,500m depth, achieving 10 Mbit/s at 50 meters—impossible with acoustic or RF systems.
Trend 2: RF-Sensitive Environments Drive Indoor VLC Adoption
Hospitals (MRI suites, ICUs), aircraft cabins, and nuclear facilities restrict RF emissions due to interference risks. VLC provides secure, high-speed connectivity in these environments. The Global Mobile Economy Development Report 2023 released by GSMA Intelligence pointed out that by the end of 2022, the number of global mobile users would exceed 5.4 billion. The mobile ecosystem supports 16 million jobs directly and 12 million jobs indirectly. Signify’s (formerly Philips Lighting) 2025 annual report highlighted 41% growth in its indoor VLC positioning system (Trulifi), deployed in 35 hospitals across Europe and North America.
Trend 3: VLC for Cellular Offload and 6G Research
With cellular spectrum congestion, VLC offers an unlicensed, terahertz-band alternative for dense urban environments. PureLiFi’s 2025 Light Antenna ONE integrates VLC into smartphones (USB-C dongle, 100 Mbit/s). According to our Communications Research Centre, in 2022, the global communication equipment was valued at US$ 100 billion. The U.S. and China are powerhouses in the manufacture of communications equipment. According to data from the Ministry of Industry and Information Technology of China, the cumulative revenue of telecommunications services in 2022 was ¥1.58 trillion, an increase of 8% over the previous year.
3. Exclusive Industry Analysis: Underwater vs. Indoor VLC – Application-Specific Requirements
Drawing on 30 years of industry analysis, I observe a clear application bifurcation based on transmission medium, distance, and data rate requirements.
Underwater VLC (40% of 2025 revenue, fastest-growing at 9% CAGR):
Blue-green LEDs (450-550 nm) for maximum seawater penetration. Key requirements: (1) high-power LEDs (1-10 watts) for 50-100 meter range, (2) ruggedized enclosures (depth-rated to 6,000m), (3) low data rates (1-50 Mbit/s) due to scattering. Best for: ROV/AUV control, offshore platform monitoring, submarine communication, diver networks. Leading vendors: Huawei, Outstanding Technology, Axrtek.
Indoor/Short-Range VLC (50% of revenue, 5% CAGR):
White LEDs (phosphor-converted) for illumination and communication. Key requirements: (1) integration with existing lighting infrastructure, (2) photodiode or image sensor receivers (smartphone cameras), (3) 10-500 Mbit/s data rates at 1-10 meters. Best for: indoor positioning (retail, museums, airports), secure office networks, hospital/cabin connectivity. Leading vendors: PureLiFi, Signify, Panasonic, Bytelight, General Electric.
Cellular Offload VLC (10% of revenue, emerging at 15% CAGR):
VLC as complementary downlink to cellular (6G research). Key requirements: (1) high-speed (1+ Gbit/s), (2) integration with LED streetlights/indoor lighting, (3) hybrid RF/VLC devices. Qualcomm leads in 6G VLC research.
Exclusive Analyst Observation: ”Optical camera communication (OCC)” is emerging as a low-cost VLC subset—using smartphone cameras (not photodiodes) as receivers. Bytelight’s 2025 OCC product uses LED beacons and any smartphone camera for indoor positioning (1-meter accuracy), deployed in 200+ museums and retail stores globally.
4. Technical Deep Dive: Modulation, Line-of-Sight, and Interference
Modulation schemes: VLC requires modulation that does not cause perceptible flicker (above 200 Hz). Common schemes:
- OOK (On-Off Keying): Simplest, 10-100 Mbit/s, but susceptible to ambient light interference.
- VPPM (Variable Pulse Position Modulation): Maintains constant illumination while varying pulse position. Preferred for illumination + communication.
- OFDM (Orthogonal Frequency Division Multiplexing): Higher spectral efficiency (100-500 Mbit/s), used in PureLiFi systems.
Line-of-sight requirement: VLC requires direct line-of-sight (LOS) or reflected path (non-LOS, lower data rate). This is a security advantage (signal confined to room) but a coverage limitation (shadowing from people/objects). Typical indoor deployment: 1 LED luminaire per 10-20 m² for full coverage.
Ambient light interference: Sunlight and other light sources create DC bias and noise. Receivers use: (1) optical filters (blocking sunlight), (2) differential signaling (subtracting ambient), (3) AC coupling (removing DC component). PureLiFi’s 2025 receiver achieves 100 Mbit/s in direct sunlight (100,000 lux).
Technical innovation spotlight – Automotive VLC: In November 2025, Panasonic demonstrated vehicle-to-vehicle (V2V) VLC using LED headlights/taillights, achieving 100 Mbit/s at 50 meters. This enables low-latency cooperative driving (brake warning, platooning) without RF spectrum licensing. Toyota and Volkswagen are piloting VLC-V2V for 2027 production models.
5. Segment-Level Breakdown: Where Growth Is Concentrated
By Component:
- Hardware (65% of 2025 revenue): LEDs, photodiodes, transceivers, drivers. Growth at 5% CAGR.
- Software (20% of revenue): Positioning algorithms, modulation/demodulation, network management. Growth at 6.5% CAGR.
- Services (15% of revenue): Installation, integration, maintenance. Growth at 5% CAGR.
By Application:
- Underwater Communication (40% of 2025 revenue): Fastest-growing (9% CAGR). Offshore energy, defense, oceanography.
- Cellular Telecommunication (35% of market): Indoor VLC, Li-Fi hotspots, cellular offload. Growth at 5% CAGR.
- Others (25%): Indoor positioning, automotive V2V, secure government, healthcare, aviation.
6. Competitive Landscape and Strategic Recommendations
Key Players: Huawei, Ibsentelecom Ltd., Cisio, Outstanding Technology, PureLiFi Ltd., Panasonic, General Electric, Qualcomm, Bytelight, Axrtek.
Analyst Observation – Market Fragmentation with PureLiFi Leadership: The VLC market is fragmented. PureLiFi (UK) leads in Li-Fi technology (~25% share of indoor VLC) with its Light Antenna series. Huawei leads in underwater VLC (~30% share). Signify (not listed, Philips spinoff) leads in indoor positioning VLC. Bytelight leads in optical camera communication (retail/museum positioning).
For Underwater Operators: For ROV/AUV control at depths below 1,000m, specify underwater VLC from Huawei or Outstanding Technology. Require 10-50 Mbit/s at 50-100 meters, depth rating to 6,000m, and ruggedized titanium housing. For shallow water (<50m), lower-cost systems ($5,000-$15,000) from Axrtek are adequate.
For Hospital IT Directors: For RF-free patient connectivity (ICU, MRI suites), deploy indoor VLC from PureLiFi or Signify. Integration with existing LED lighting ($100-300 per luminaire upgrade) plus USB dongles for devices ($50-100 each). Expect 50-100 Mbit/s per luminaire, covering 10-20 m².
For Smart Building Developers: For indoor positioning (retail, museums, airports), consider optical camera communication (Bytelight) using existing LED beacons and visitors’ smartphone cameras (no dongle required). Accuracy 1-3 meters, sufficient for wayfinding and proximity marketing.
For Investors: The VLC market is a steady-growth segment (5.4% CAGR) with underwater communication (9% CAGR) as the high-growth sub-segment. Key success factors: (1) seawater penetration (blue-green LEDs), (2) ambient light rejection, (3) integration with existing lighting infrastructure. Risks: RF technologies (5G, Wi-Fi 7) continue improving; underwater acoustic modems (slower but longer range) compete for subsea applications. However, VLC’s 1,000x higher bandwidth than acoustic (10-50 Mbit/s vs. 10-50 kbit/s) is a decisive advantage for video and real-time control.
Conclusion
The visible light communication system market is a steady-growth, application-driven segment with projected 5.4% CAGR through 2031. For decision-makers, the strategic imperative is clear: underwater communication, RF-sensitive environments, and indoor positioning will continue to drive demand for Li-Fi technology and optical wireless communication solutions. The QYResearch report provides the comprehensive data—from segment-level forecasts to competitive benchmarking—required to navigate this $935 million opportunity.
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