Current density adaptation for optical wireless communication systems

The present invention relates to an optical wireless communication system that adapts the current density of a light source depending on link requirements. In order to control the current density independently of the total current, a light emitting diode (LED) is used that allows adaptation to the surface area of the active portion of the junction or quantum well through which the current is transmitted. In one example, the total current is a constant and determined by an allowed power consumption, but a plurality of LEDs are still mounted. Current can be adaptively distributed between LEDs, where a single LED is used for short-range communication (at high current, high bandwidth, lower efficiency), while more LEDs are used for remote communication, thus using lower current density (hence higher efficiency), and the LED can be applied to a wireless communication system, such as a wireless communication system, a wireless communication system, a wireless communication system, or a wireless communication system