In one embodiment, a method comprises receiving, by an apparatus, first data at a first bitrate and second data at a second bitrate faster than the first bitrate; de-interleaving, by the apparatus, the first data into first de-interleaved data and the second data into second de-interleaved data; and controlling transmission of the first and second data in a single modulated light beam transmitted by a light emitting diode, the controlling including outputting portions of the first and second de-interleaved data to the light emitting diode, and controlling transmission of the light emitting diode.