Performance of free space optical communication through gamma-gamma turbulence channels with spatial diversity

摘要：

Free space optical (FSO) communications is a costeffective and high bandwidth access technique, which has been receiving growing attention recent yeares. However, the performance of FSO is severely suffers from the turbulence induced fading which severely degrades the link performance. To mitigate turbulence-induced fading and, therefore, to improve the error rate performance, spatial diversity can be used over FSO. In this paper, using OOK intensity modulation/ direct detection, we investigate the bit error rate (BER) performance of FSO links with spatial diversity over gamma-gammal atmospheric turbulence fading channels. The atmospheric turbulence effects on the system bit error rate are analyzed. The equal gain combined diversity and optimal gain combined space diversity technology are compared. Results show that the FSO performance can be improved effectively.

关键词： Free space optical comunication Spatial diversity BER Atmospheric turbulence

作者: HAN Li-qiang WANG Qi SHIDA Katsunori

作者单位: Department of Automatic Measurement and Control, Harbin Institute of Technology, Harbin 150001, Chin Department of Automatic Measurement and Control, Harbin Institute of Technology, Harbin 150001, Chin

会议类型: 国际会议

会议名称: 2010 International Conference on Computer and Communication Technologies in Agriculture Engineering(计算机与通信技术在农业工程国际会议 CCTAE 2010)

会议地点: 成都

会议语种:英文

页码: 109-112

在线出版日期: 2010-06-12（万方平台首次上网日期，不代表论文的发表时间）