Open AccessSecure free-space optical communication system based on data fragmentation multipath transmission technology
Author(s) -
Qingchao Huang,
Dachang Liu,
Yinfang Chen,
Yuehui Wang,
Jun Tan,
Wei Chen,
Jianguo Liu,
Na Zhu
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.013536
Subject(s) - free space optical communication , computer science , optical communication , multipath propagation , communications system , data transmission , transmission (telecommunications) , free space , secure communication , electronic engineering , computer network , telecommunications , optics , engineering , encryption , physics , channel (broadcasting)
A secure free-space optical (S-FSO) communication system based on data fragmentation multipath transmission (DFMT) scheme is proposed and demonstrated for enhancing the security of FSO communications. By fragmenting the transmitted data and simultaneously distributing data fragments into different atmospheric channels, the S-FSO communication system can protect confidential messages from being eavesdropped effectively. A field experiment of S-FSO communication between two buildings has been successfully undertaken, and the experiment results demonstrate the feasibility of the scheme. The transmission distance is 50m and the maximum throughput is 1 Gb/s. We also established a theoretical model to analysis the security performance of the S-FSO communication system. To the best of our knowledge, this is the first application of DFMT scheme in FSO communication system.