Adaptive Feedback Protocol for Underwater Vehicles via Software-Defined Acoustic Modems
Adaptive Feedback Protocol for Underwater Vehicles via Software-Defined Acoustic Modems
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DOI：
10.1109/urtc45901.2018.9244808
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发表时间：
2018-10
期刊：
影响因子：
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通讯作者：
Caroline Abel;Ray Chen;James Gallicchio;Grace Zhang;Katherine Zhou;Adam Gurney;M. Rahmati;D. Pompili
中科院分区：
文献类型：
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作者：
Caroline Abel;Ray Chen;James Gallicchio;Grace Zhang;Katherine Zhou;Adam Gurney;M. Rahmati;D. Pompili
水下机器人在科学研究、污染监测和水下设施维护等方面具有巨大的潜力。然而，水下信道对声学通信提出了一系列独特的困难，包括路径衰减、有色噪声、多普勒频移、多径传播和带宽限制。利用反馈信道的双向通信可以减轻这些挑战的一些影响，但是该反馈信道必须高度鲁棒和可靠。本研究提出了一种新的反馈传输协议，采用软件定义的自适应通信技术，以实现可接受的传输速率，而不牺牲通过此反馈链路传输的数据的完整性。传输速率和准确性之间的权衡是量化的，通过模拟，以确定最有效的形式所提出的协议。
Underwater acoustic communication provides great potential through aquatic robots that have use in scientific research, pollution monitoring, and maintenance of underwater facilities. However, the underwater channel poses a unique array of difficulties for acoustic communication, including path attenuation, colored noise, Doppler shifting, multipath propagation, and bandwidth limitations. Bidirectional communication utilizing a feedback channel can mitigate some of the impact of these challenges, but this feedback channel must be highly robust and reliable. This research proposes a new protocol for feedback transmissions that employs a software-defined, adaptive communication technique to achieve acceptable transmission rates without sacrificing the integrity of the data transmitted over this feedback link. The trade-off between transmission rate and accuracy is quantified via simulations to determine the most effective form of the proposed protocol.