A simplified approach for error rate analysis in realistic free space optical fading channels

摘要

Free space optical (FSO) communication systems offer numerous advantages, such as their flexibility in redeployment and high data rates, as compared to optical fiber-based communications. However, these systems are susceptible to a wide range of fading phenomena due to the extremely random fluctuations in the atmospheric conditions. In this letter, a simple semi-deterministic approach is proposed to calculate the average bit error probability (ABEP) performance of FSO systems operating in arbitrary fading conditions, considering the intensity modulation - direct detection (IM/DD) on-off keying (OOK) modulation scheme.