Method and device for optimizing beam-pointing in wireless optical communication system

An optical transmission device for optimizing a beam-pointing in a wireless optical communication system, the device comprising:

• a processor;
• a light source;
• an optical system;
• and
• a memory,
• wherein the processor is configured to:
• receive, from an optical reception device, by the optical transmission device, information related to power of a received light in at least one reception terminal based on a coordinate value associated with the at least one reception terminal of the optical reception device from a specific transmission terminal among at least one transmission terminal of the optical transmission device;
• determine, by the optical transmission device, a coordinate value which maximizes a signal-to-noise ratio based on the information related to the power of the received light;
• and
• transmit, toward the optical reception device, a beam from the specific transmission terminal of the optical transmission device based on the determined coordinate value,
• wherein the coordinate value associated with the at least one reception terminal includes (xi, yi) that corresponds to a center coordinate of a i-th reception terminal, and
• wherein the information related to the power of the received light in the at least one reception terminal includes a value of mi corresponding to a power attenuation according to a medium characteristic between the specific transmission terminal and the i-th reception terminal.