Open AccessExperimental research and comparison of LDPC and RS channel coding in ultraviolet communication systems
Author(s) -
Menglong Wu,
Dahai Han,
Xiang Zhang,
Feng Zhang,
Min Zhang,
Guangxin Yue
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.005422
Subject(s) - low density parity check code , non line of sight propagation , computer science , forward error correction , communications system , bit error rate , codec , coding (social sciences) , ultraviolet , channel (broadcasting) , optical communication , algorithm , optics , electronic engineering , decoding methods , telecommunications , physics , mathematics , wireless , statistics , engineering
We have implemented a modified Low-Density Parity-Check (LDPC) codec algorithm in ultraviolet (UV) communication system. Simulations are conducted with measured parameters to evaluate the LDPC-based UV system performance. Moreover, LDPC (960, 480) and RS (18, 10) are implemented and experimented via a non-line-of-sight (NLOS) UV test bed. The experimental results are in agreement with the simulation and suggest that based on the given power and 10(-3)bit error rate (BER), in comparison with an uncoded system, average communication distance increases 32% with RS code, while 78% with LDPC code.