| 摘要 |
The invention relates to an information encoder, and decoder, a signal and a method of encoding and decoding of information for a coded light system. The invention aims to provide amongst others a method for transmitting and receiving a message (msg1, . . . , msg6) in a system for visible light communication and wherein the message comprises a plurality of source symbols and wherein the method for transmitting comprises: generating a modulation signal by mapping the source symbols of the message onto channel symbols for modulating the output of the light source, wherein the message is partitioned into a plurality of packets (d1, . . . , d3) of consecutive channel symbols and wherein idle periods (i1, . . . , i5) are interspaced between each pair of adjacent packets, and wherein the duration of the idle period is varied for signaling information pertaining to the message, and modulating the output of the light source based on the modulation signal so as to transmit the message at least a predetermined number of times. |
