APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING FOR VISIBLE LIGHT COMMUNICATION

摘要

PURPOSE: A visible light wireless communications transmission/reception device and a method thereof are provided to eliminate interference caused by signals different from each other in visible light wireless communications. CONSTITUTION: A modulation part (100) modulates source data into an orthogonal frequency division multiplexing (OFDM) symbol according to an OFDM method. The modulation part inserts a spreading code, which is assigned to a visible light wireless communications transmission device, into another sub-carrier of the OFDM symbol. A light-emitting part (120) includes multiple light-emitting diodes (LED). The light-emitting part controls the on/off of the multiple LEDs. The light-emitting part transmits the OFDM symbol, where the spreading code is inserted, through a visible light modulation signal. [Reference numerals] (100) Modulation part; (122) Light source operating part; (210) Photoelectricity converting part; (220) Demodulation part; (AA) Source data; (BB) Original data