Abstract
In non-line-of-sight (NLOS) UV communication links using intensity modulation with direct detection, atmospheric turbulence-induced intensity fluctuations can significantly impair link performance. To mitigate turbulence-induced fading and, therefore, to improve the bit error rate (BER) performance, spatial diversity reception can be used over NLOS UV links, which involves the deployment of multiple receivers. The maximum-likelihood (ML) spatial diversity scheme is derived for spatially correlated NLOS UV links, and the influence of various fading correlation at different receivers on the BER performance is investigated. For the dual-receiver case, ML diversity detection is compared with equal gain combining and optimal combining schemes under different turbulence intensity conditions.
© 2012 Optical Society of America
Full Article | PDF ArticleMore Like This
Antonio García-Zambrana, Carmen Castillo-Vázquez, Beatriz Castillo-Vázquez, and Rubén Boluda-Ruiz
Opt. Express 20(15) 16394-16409 (2012)
Kamal K. Garg, Praveen Singya, and Vimal Bhatia
J. Opt. Commun. Netw. 11(11) 525-535 (2019)
Dahai Han, Yile Liu, Kai Zhang, Pengfei Luo, and Min Zhang
Opt. Express 20(14) 15833-15842 (2012)