High bit rate indoor visible light communication (vlc) system

In general, visible light communication (VLC) systems run at low data rates. By introducing multiple input and multiple output (MIMO) techniques, services at enhanced data rates can be viable for VLC systems. This work proposes MIMO technique to attain VLC system with high data rates. To attain MIMO method this system includes a number of photodiodes with a narrow field of view (FOV), which highlights the benefit of using MIMO technology in improving the data rate. The results show that using MIMO technique leads to enhance the VLC system when it is compared with the traditional system (without using MIMO). The results show that an improvement in the signal-to-noise ratio (SNR) level, which is the most attempt to determine communication quality, increasing the channel bandwidth and reducing the delay spread are achieved when MIMO technique is used. The proposed system focuses on transferring data in parallel, which adds a significant improvement in the aggregate data rate compared to the traditional VLC system. The results show that the maximum aggregate data rate is 3.4 Gbps in the 4 x 4 MIMO-VLC system while it reaches 6.8 Gbps on the 8 x 8 MIMO-VLC system. The improvement in SNR level in the two proposed systems greatly improves the aggregate data rate.