Optical infrastructure for visible light communication for public housing and commercial buildings

We propose a free-space optical system to replace wireless LAN in commercial and residential premises. Closing the last mile using wireless optical (WOP) communication provides the advantages of a cableless environment, mobility freedom, and faster data transfer rate. Trunk optical signals from the metropolitan core terminate at the optical control panel (OCP) in premises, after which signals are filtered, recoded, and emitted via LEDs to the different areas of the house or office. Photoreceivers, on the other hand, absorb light signals and convert them back to electrical signals for the devices. Since light has become the medium of communication, a few devices have been proposed so that transmission and reception of optical signals are optimized.