Closed-Form Error Probability of Blind Detection for Free Space Optical Systems

被引：0
作者：
Dabiri, Mohammad Taghi [1 ]
Sajad Sadough, Seyed Mohammad [1 ]
Safi, Hossein [1 ]
机构：
[1] Shahid Beheshti Univ, Dept Elect Engn, Tehran, Iran
来源：
2016 8TH INTERNATIONAL SYMPOSIUM ON TELECOMMUNICATIONS (IST) | 2016年
关键词：
Free space optical communication; blind detection; channel state information; LIKELIHOOD SEQUENCE DETECTION; COMMUNICATION;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Atmospheric turbulence is a practical obstacle in deployment of free space optical (FSO) communications. Due to its ease of implementation, on-off keying (OOK) is a widely-adopted modulation technique for intensity modulation with direct detection (IM/DD) in optical communications. For optimal signal detection, the receiver needs to know the instantaneous channel fading coefficient to detect OOK symbols. In this paper, to reduce the effect of atmospheric turbulence, we employ blind detection to estimate the channel and to adjust the detection threshold. Since Monte Carlo analysis requires long simulation time, we derive a closed-form expression for the bit error probability of IM/DD systems. Numerical results are provided to validate the accuracy of derived analytical expressions.
引用
收藏
页码：304 / 308
页数：5
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