The performance of QC-LDPC codes in visible light communication

Tong Liu, Peng Liu, Jiang Liu, Song Liu, Bin Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, Visible Light Communication (VLC) has attracted much attention. The paper employed the Quasi-Cyclic Low-Density Parity-Check (QC-LDPC) codes in the VLC systems. Compared with LDPC codes, QC-LDPC codes are more easily to encode and to achieve hardware implementation. The paper investigated the performance of the QC-LDPC codes under two scenarios when transmitting information in the VLC systems. One is only the ambient light and Positive-Intrinsic-Negative (PIN) silicon photodiode noise affect the systems. And the result shows that the Bit Error Rate (BER) using QC-LDPC codes can reach 10-6, when Signal-to-Noise Ratio (SNR) is 1.6dB, code rate is 1/2 and code length is 2304. Another is when obstructions block the information transmission, the adaptive amplifier would automatically switch its amplification factor to alleviate obstructions effect. However, the received signal is uncertain in the period of the amplifier switching amplification factor. In such situation, the paper found that the BER can reach 10-6, when the SNR is 3dB, code rate is 1/2 and code length is 2304.

Original languageEnglish
Title of host publicationElectronics, Communications and Networks IV - Proceedings of the 4th International Conference on Electronics, Communications and Networks, CECNet2014
PublisherCRC Press/Balkema
Pages997-1002
Number of pages6
ISBN (Print)9781138028302
Publication statusPublished - 2015
Externally publishedYes
Event4th International Conference on Electronics, Communications and Networks, CECNet2014 - Beijing, China
Duration: 2014 Dec 122014 Dec 15

Other

Other4th International Conference on Electronics, Communications and Networks, CECNet2014
CountryChina
CityBeijing
Period14/12/1214/12/15

    Fingerprint

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Liu, T., Liu, P., Liu, J., Liu, S., & Wang, B. (2015). The performance of QC-LDPC codes in visible light communication. In Electronics, Communications and Networks IV - Proceedings of the 4th International Conference on Electronics, Communications and Networks, CECNet2014 (pp. 997-1002). CRC Press/Balkema.