Design and Implementation of Long Distance Visible Light Communication System Based on Embedded ARM Platform

2013 ◽  
Vol 462-463 ◽  
pp. 643-646
Author(s):  
Meng Mi Zhou ◽  
Ming Lun Zhang ◽  
Yan Gan Zhang
Keyword(s):  
Optical Communication ◽  
Communication System ◽  
Data Transfer ◽  
Transmission Rate ◽  
Visible Light Communication ◽  
Optical Communication System ◽  
Long Distance ◽  
Design And Implementation ◽  
Interactive Interface ◽  
Drive Circuit

In this paper, a long-distance optical communication system based on Embedded ARM platform is presented and demonstrated. The system is composed of two parts: LED/PD application terminal and its drive circuit. Terminal has a 4-inch touch screen with interactive interface based on Android system. The performance of data transfer in our prototype shows up to 50 m range at the transmission rate of 50kbps. This system is supposed to reach the distance of 2km or higher in the coming months.

Design and Implementation of Balance Detector Used in Coherent Optical Communication System

2014 ◽  
Vol 51 (7) ◽  
pp. 070601 ◽  
Author(s):  
刘宏阳 Liu Hongyang ◽  
张燕革 Zhang Yange ◽  
艾勇 Ai Yong ◽  
代永红 Dai Yonghong ◽  
陈晶 Chen Jing
Keyword(s):  
Optical Communication ◽  
Communication System ◽  
Optical Communication System ◽  
Design And Implementation ◽  
Coherent Optical Communication

A Construction Method of LDPC Codes for Space Optical Communications Based on Protograph

2014 ◽  
Vol 631-632 ◽  
pp. 791-794
Author(s):  
Qian Hua Zhang ◽  
Jian Wu Zhang
Keyword(s):  
Optical Communication ◽  
Communication System ◽  
Communication Systems ◽  
High Speed ◽  
Ldpc Codes ◽  
Construction Method ◽  
Optical Communication System ◽  
Long Distance ◽  
System A ◽  
Space Optical Communication

In order to meet the requirements of low bit error-rate of the channel code in the space optical communication system, a construction method of low density parity check ( LDPC) codes with excellent performance is proposed based on protograph and quasi-cyclic expansion. It can be applied in high-speed encoding and decoding with efficient quasi-cyclic expansion. According to the proposed method, a LDPC ( 8832, 1472) suitable for the space optical communication system is constructed, in which the LDPC codes of the protograph perform very well. Simulation shows that the LDPC codes have superior error-correction performance and show no sign of error floor when the BER is in the order of 10-9, which are suitable for the long-distance space optical communication systems.

Sign in / Sign up

Export Citation Format

Share Document