Research and Development Division, Nakagawa Laboratories, Inc., Tokyo, Japan
*通讯作者：
Xin Lin,单位：Research and Development Division, Nakagawa Laboratories, Inc., Tokyo, Japan；
摘要
针对海洋环境开发和海底资源观测，提出了一种波长自适应的水下光学无线传感器网络（UOWSN）。该网络采用基于发光二极管（LED）的可见光通信（VLC）方法在传感器节点之间构建无线网络，每个传感器节点本身就是一个可见光通信收发器。LED为非相干光源，既不会像相干激光光源那样对海洋生物造成损伤，也不会损失光辐射固有的高速度性。波长自适应技术用于自适应控制随时间变化的海水浊度和海洋环境。水下一对一图像传输实验验证了所提UOWSN的有效性。
关键词： UOWSN；VLC；波长自适应；LED
Abstract
A wavelength-adaptation underwater optical wireless sensor network (UOWSN) is proposed for marine environment development and seafloor resources observation. The method of LED-based visible light communication (VLC) is employed for creating the wireless network among the sensor nodes, and each sensor node is a VLC transceiver. The LED is incoherent source, it can neither damage the marine creatures like as a coherent laser source nor lose the inherent high speediness of light radiation yet. The wavelength-adaptation technique is used to adaptive control seawater turbidity and marine environment which both have spatiotemporal change. The effectiveness of proposed UOWSN is demonstrated in the experiments of underwater one-to-one image transmissions.
Key words： UOWSN; VLC; Wavelength adaptation; LED
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