| Title |
Novel Exact and Asymptotic Closed-form BER Expressions for FSO System with IM/DD and OOK over Strong Atmospheric Turbulence Channels |
| Authors |
공진우(Jinu Gong) ; 이후진(Hoojin Lee) |
| DOI |
https://doi.org/10.5573/ieie.2025.62.5.29 |
| Keywords |
Free-space optical (FSO) communication; Bit-error rate (BER); Strong atmospheric turbulence |
| Abstract |
In this paper, we derive novel exact and asymptotic closed-form bit-error rate (BER) formulas for the free-space optical (FSO) system employing intensity modulation with direct detection (IM/DD) and on-off keying (OOK) modulation especially over strong atmospheric turbulence channels. The derived exact and asymptotic BER formulas as well as the corresponding asymptotic modulation gain and diversity order can give us more intuitive and useful insights into the achievable BER performance than the existing BER expression. Through some numerical results, the accuracy of our theoretical expressions is also corroborated. |