可见光通信信道障碍成因分析及解决方案  

The cause analysis and solutions of VLC channel obstacle

作　　者：张浩[1,2] 陈长缨[1,2] 

机构地区：[1]广东省高等学校光电信息与传感技术重点实验室(暨南大学),广州510632 [2]暨南大学光电工程系,广州510632

出　　处：《光通信技术》2012年第9期57-60,共4页Optical Communication Technology

基　　金：中央高校基本科研业务费专项资金资助

摘　　要：可见光通信是一项横跨照明与通信两大领域的新型无线光通信技术,在利用白光LED提供照明的同时实现高速数据传输。从可见光通信系统结构出发,分析了造成信道障碍的原因,将其分为大气障碍、非完全障碍和完全障碍三大类;阐述了每一类信道障碍的解决方案,包括信道编码技术、自适应阈值判决技术、分集接收技术和路由转换技术,为提高可见光通信系统的稳定性和可靠性提供参考和依据。The visible light communication （VLC） is a new type of wireless optical communication technique that across the lighting area and communication area, providing high speed data transmission while lighting with white LED. This paper starts from the structure of VLC system, analyzes the causes of the channel obsta- cles, classifies them into three types obstacles including atmosphere obstacle, incomplete obstacle and com- plete obstacle, expounds the solution of each type of channel obstacle including channel coding technology, adaptive threshold value judgment technology, diversity reception technology and routing conversion technol- ogy, providing some reference and basis to improve the stability and reliability of VLC system.

关 键 词：可见光通信 白光LED 信道障碍 

分 类 号：TN929.12[电子电信—通信与信息系统]