Visible Light Communication (VLC) is revolutionizing wireless connectivity, leveraging Light Emitting Diodes (LEDs) to transmit data at high speeds. However, one of the key challenges in VLC systems is the limited bandwidth of LEDs, which restricts data transmission rates. To overcome this limitation, digital pre-equalizers have emerged as an effective solution due to their simple and reusable structure.
In a 2023 research study, Murat Bostanoglu from ElectraIC, along with Yaser Dalveren, Ferhat Ozgur Catak, and Ali Kara, explored the implementation of digital pre-equalizers in a realistic VLC system based on the IEEE 802.15.13 standard. The study involved collecting real-world signal recordings, developing a MATLAB-based simulation model, and designing two different pre-equalization methods to improve system performance. Their findings revealed that while the second pre-equalizer design achieves lower Bit Error Rates (BER), it comes with higher complexity and cost. Meanwhile, the first design offers a cost-effective alternative, making it a practical solution for real-world VLC applications.
As Li-Fi technology continues to evolve, innovative techniques like digital pre-equalization will play a crucial role in enhancing bandwidth efficiency, reliability, and overall system performance. Check out the video below to see Li-Fi in action, demonstrating the future of high-speed, optical wireless communication!
#LiFi #VLC #WirelessCommunication #ElectraIC #Innovation
