Abstract
This letter presents an error correction scheme for dimmable visible light communication systems. To provide dimming control of on-off keying, the proposed coding scheme yields a codeword with the codeword weight adapted to the dimming requirement. It also allows an arbitrary value of the dimming requirement unlike existing coding schemes which have a limited support of this feature. To this end, turbo codes are employed together with puncturing and scrambling techniques to match the Hamming weight of codewords with the desired dimming rate. We demonstrate the decoding performance of the proposed coding scheme under iterative decoding and compare it with other existing error correction schemes. The simulation results prove that the proposed scheme has superior decoding performance, arbitrary dimming rate support, and diverse code rate options.
| Original language | English |
|---|---|
| Article number | 6198865 |
| Pages (from-to) | 1463-1465 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 24 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
Bibliographical note
Funding Information:Manuscript received March 25, 2012; revised April 24, 2012; accepted May 4, 2012. Date of publication May 11, 2012; date of current version July 31, 2012. This work was supported by the 2012 Yeungnam University Research Grant.
Keywords
- Arbitrary code rates
- dimming
- puncturing
- turbo codes
- visible light communication
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering