Adaptive Control for LED-Based Underwater Wireless Communications Using Visible Light

• DOI: 10.1587/transfun.e100.a.185
• Publication Date: 2016-12-31T17:22:23Z
• Authors: Xin LIN
• Keywords: Underwater acoustic communication; Optical wireless communications

One of the major subjects for marine resources development and information processing is how to realize underwater short-range large-capacity data transmissions. The acoustic wave an effective carrier has been used transmissions because it lower attenuation in seawater than radio wave, average propagation distance about 10km or more. However, along with imaging transmission data, inherent low speed makes cannot become ideal high-speed communications. On other hand, visible-light wavelength 400nm-650nm carrier, which received much attention. Its attractive features are high transparency rate underwater, easily control direction range by visibility, capacity, making excellent application wireless waves have spectral characteristics due different environment. Therefore, this paper optical communication method adaptation function considered turbidity spatio-temporal change. Two crucial components system, light modulation controlled using wavelength- modulation-adaptation techniques, respectively. effectiveness demonstrated image