| 摘要 |
<p>Provided are a data sending and receiving method and device and a transmission system for visible light communications. The data sending method comprises: mapping a data stream to be sent into a multilevel signal; and transmitting the multilevel signal to a light emission source module corresponding to the multilevel signal to be sent. The technical solution provided in the present invention is applied to solve the technical problems of lower communication efficiency, etc. of a visible light communication solution in the related art, thereby improving the data throughput in the visible light communications, and then improving the data transmission efficiency.</p> |
