Design of optical-acoustic hybrid underwater wireless sensor network
Design of optical-acoustic hybrid underwater wireless sensor network
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光声混合水下无线传感器网络设计
DOI：
10.1016/j.jnca.2017.02.014
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发表时间：
2017-08
影响因子：
8.7
通讯作者：
Ju Liu
中科院分区：
文献类型：
--
作者：
Jing Jing Wang;Wei Shi;Lingwei Xu;Liya Zhou;Qiuna Niu;Ju Liu
海洋探测中对水下高速无线传输技术提出了迫切的需求，以实现高分辨率三维观测数据的实时传输。目前，水声传感器网络已获得了很高的传输距离，但存在数据速率低、功耗大、成本高以及对海洋哺乳动物造成伤害等问题。同时，水下光通信可以实现较高的数据速率，但组网困难，通信距离短。提出了一种新型的光-声混合水下无线传感器网络（OA-UWSN），该网络利用光通信实现近距离高速传输，利用声通信实现控制命令和节点定位。OA-UWSN通过定向光通信和多跳传输机制实现远距离光传输。通过设计全空间光直放站，解决了光通信组网困难的问题。利用定向光传输的特点，在数据链路层（DLL）采用空分多址（SDMA）技术来提高数据传输效率。为了提高网络的生命周期，适应网络拓扑结构的频繁变化，设计了一种基于反向路由搜索的路由协议。提出了一种海洋探测中实时视频图像无线传输的解决方案，为海洋探测信息的高速传输提供了新的方法。
High-speed underwater wireless transmission technologies are urgently demanded to transmit three-dimensional high-resolution observation data timely in ocean exploration. Currently, underwater acoustic sensor networks have obtained high transmission distance, but with low date rate, high power consumption, high cost and damage to marine mammals. Meanwhile, underwater optical communications can achieve high date rate, but with difficult networking and short communication distance. This paper proposed a kind of novel Optical-Acoustic hybrid Underwater Wireless Sensor Network (OA-UWSN) which employed optical communication for high-speed transmission at close range and employed acoustic communication for transmitting control commands and node localization. OA-UWSN accomplished long-distance optical transmission through directional optical communication and multi-hop transmission mechanism. The problem of difficult networking in optical communication was solved by designing the whole space optical repeater. With the characteristics of directional optical transmission, the Space Division Multiple Access (SDMA) technology was employed in Data Link Layer (DLL) to improve the data transmission efficiency. A routing protocol based on reverse route search was designed to improve the network life cycle and adapt to network topology which changed frequently. The paper proposed a solution for wireless transmission of real-time video and images in marine exploration and provided new methods for high-speed transmission of marine information detection.
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影响因子：
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作者：
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DOI：
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发表时间：
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期刊：
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影响因子：
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