Integrated system of free-space optical and visible light communication for indoor wireless broadband access

• Published in: Electronics letters Vol. 51; no. 23; pp. 1943 - 1944
• Main Authors: Zheng, Zhong, Liu, Lu, Chen, Te, Hu, Weiwei
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 05.11.2015
• Subjects: all‐optical links; bit error rate; Broadband; broadband networks; Communication systems; Constellations; distance 1 km; distance 2 km; distance 2 m; equalisers; Equivalence; error statistics; forward error correction; free space optical communication; Indoor; indoor communication; indoor free‐space link; indoor wireless broadband access; integrated system; Links; optical links; quadrature amplitude modulation; single carrier frequency domain equalisation transmissions; single mode fibre; visible light communication; Wireless communication; Wireless communications; optical links; all-optical links; distance 2 km; single carrier frequency domain equalisation transmissions; distance 1 km; broadband networks; quadrature amplitude modulation; forward error correction; distance 2 m; free space optical communication; bit error rate; visible light communication; single mode fibre; equalisers; indoor wireless broadband access; indoor free-space link; indoor communication; integrated system; error statistics
• ISSN: 0013-5194; 1350-911X; 1350-911X
• DOI: 10.1049/el.2015.2648

An integrated system of free-space optical communication and visible light communication for indoor wireless broadband access is proposed. The proposed system features all-optical links and high capacity. As a proof of concept, 16- and 32-quadrature amplitude modulation single-carrier frequency domain equalisation transmissions over equivalent 2 km free-space, 1 km single-mode fibre, and 2 m indoor free-space link are demonstrated. About 300 Mbit/s data rate with bit error rate under the forward error correction limit (3.8 × 10−3) and clear constellation maps are achieved.