TY - JOUR AU - Dao, Vu Anh AU - Thuy, Tran Thi Thanh AU - Dung, Truong Cao AU - Quyen, Nguyen Xuan PY - 2021 TI - Investigation of Ber Performances in Chaotic-Secured Optical Fiber Communication Systems using the 4-PAM Modulation Scheme JF - Journal of Science and Technology: Issue on Information and Communications Technology; Vol 19 No 6.2 (2021): Volume 19, Number 6.2, 2021 DO - 10.31130/ict-ud.2021.126 KW - N2 - This paper presents a numerical simulation investigation on the bit error rate in a chaotic-secured fiber channel and a conventional fiber channel when propagating independently. The investigated communication system uses the pulse-amplitude modulation scheme (4-PAM) at the bit rate of 10 Gbps, the fiber length of 100 km, and the operation wavelength of 1550 nm. Our simulation results demonstrate both chaotic and non-chaotic transmission channels can well operate with the bit rate up to 20 Gbps with the BER smaller than 10-5 if dispersion and fiber loss issues are appropriately compensated without needing forwarderror-correction, showing high potential in physically secured optical fiber communication systems. UR - http://ict.jst.udn.vn/index.php/jst/article/view/126