High range free space optic transmission using new dual diffuser modulation technique A.K Rahman, N Julai, M Jusoh, C.B.M. Rashidi, S.A Aljunid, M.S Anuar, M.F Talib, Nurdiani Zamhari, S.k Sahari, K.F. Tamrin et al. (5 more) EPJ Web Conf., 162 (2017) 01026 Published online: 22 November 2017 DOI: 10.1051/epjconf/201716201026