CCSS: Medium: Enabling Access and Topology Optimization of Underwater Networks through an Aerial Units Vehicle

CCSS：中：通过空中装置实现水下网络的接入和拓扑优化

基本信息

批准号：
1917539
负责人：
Mohamed Younis
金额：
$ 48万
依托单位：
University of Maryland Baltimore County
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-08-01 至 2024-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1917539&HistoricalAwards=false
关键词：
CCSS Medium Enabling Access Topology

项目摘要

In recent years, there is an increased interest in the applications of underwater acoustic networks (UANs). Currently, floating nodes are used to interface the UAN through radio links to non-sea-based units and to correlate the position of underwater nodes to a global coordinate system. However, such an approach could be impractical for extended missions, ineffective for rapid response scenarios, and/or undesirable for covert operations. Moreover, little attention has been paid to mitigating frequent breaks in UAN connectivity due to node drifts and time varying property of the underwater environment. To address these issues, this research project promotes the development of innovative communication mechanisms for interfacing UANs directly to an aerial mobile unit (AMU) without the need of floating nodes. The outcome can boost the effectiveness of many civil and scientific applications of a national and international interest. Examples of these applications include search-and-rescue, coastal patrol, oceanographic data collection, environmental monitoring, assisted navigation, and security surveillance. Furthermore, the project will enrich the undergraduate and graduate curricula in computer networks, wireless communication, sensor networks, lasers, and embedded and distributed systems. Outreach to local community colleges and high schools is planned in order to publicize underwater researches and recruit students to STEM education. UMBC's the Meyerhoff Scholarship, and CWIT (Center for Women & Info. Tech.) programs will be exploited to actively recruit female and minority students.The project opts to develop a suite of protocols enabling direct two-way communication between UANs and AMUs. These protocols are then leveraged to extend the global coordinate system in the underwater environment to aid in localization and topology management. The specific technical contributions are: (1) Develop protocols for reliable bidirectional communication between the UAN and an AMU. The optoacoustic effect will be utilized to create a downlink where encoded underwater acoustic signals are generated by directing airborne laser beams to the water surface. The uplink, on the other hand, is established by means of a laser Doppler vibrometer that will detect impinging and protrusion caused by an incident acoustic transmission from an underwater node onto the water surface; (2) Devise encoding and modulation schemes to suit transmission across the air-water interface. Fundamental limitations in terms of underwater reach, effective channel capacity, bit error rate, etc., will be studied; (3) Develop a network discovery and localization protocol that leverages communication with the AMU to enable the establishment of underwater global coordinate system. This is accomplished by utilizing the aerial vehicle in making encoded optoacoustic transmissions to generate reference points on the water surface linked to a terrestrial global coordinate system, e.g. GPS; (4) Develop topology management protocols that utilizes the AMUs in mitigating node drifts and re-establishing broken acoustic links with a node or an isolated block of nodes. Validation is planned through test-beds and field experiments.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

近年来，人们对水声网络（UAN）的应用越来越感兴趣。目前，浮动节点用于通过无线电链路将 UAN 连接到非海基单元，并将水下节点的位置与全球坐标系相关联。然而，这种方法对于延长任务来说可能不切实际，对于快速响应场景无效，和/或不适合秘密行动。此外，很少有人关注如何缓解由于节点漂移和水下环境的时变特性而导致的 UAN 连接频繁中断。为了解决这些问题，该研究项目促进创新通信机制的开发，将 UAN 直接连接到空中移动单元 (AMU)，而无需浮动节点。该成果可以提高许多涉及国家和国际利益的民用和科学应用的有效性。这些应用的示例包括搜索和救援、沿海巡逻、海洋学数据收集、环境监测、辅助导航和安全监视。此外，该项目还将丰富本科生和研究生在计算机网络、无线通信、传感器网络、激光以及嵌入式和分布式系统方面的课程。计划向当地社区大学和高中进行推广，以宣传水下研究并招收学生接受 STEM 教育。 UMBC 的 Meyerhoff 奖学金和 CWIT（妇女与信息技术中心）计划将用于积极招收女性和少数族裔学生。该项目选择开发一套协议，实现 UAN 和 AMU 之间的直接双向通信。然后利用这些协议来扩展水下环境中的全局坐标系，以帮助定位和拓扑管理。具体的技术贡献是：（1）开发UAN和AMU之间可靠的双向通信协议。光声效应将用于创建下行链路，通过将机载激光束引导到水面来生成编码的水声信号。另一方面，上行链路是通过激光多普勒测振仪建立的，该测振仪将检测从水下节点到水面的入射声传输引起的撞击和突出； (2) 设计编码和调制方案以适应空气-水界面上的传输。将研究水下作用范围、有效信道容量、误码率等方面的基本限制； (3) 开发网络发现和定位协议，利用与AMU的通信来建立水下全球坐标系。这是通过利用飞行器进行编码光声传输以在水面上生成与陆地全球坐标系（例如坐标系）相关联的参考点来实现的。全球定位系统; (4) 开发拓扑管理协议，利用 AMU 减轻节点漂移并重新建立与节点或孤立节点块之间断开的声学链路。验证计划通过试验台和现场实验进行。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

期刊论文数量（12）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Analyzing Visible Light Communication Through Air–Water Interface

分析通过空气与水界面的可见光通信

DOI：
10.1109/access.2019.2938522
发表时间：
2019
期刊：
IEEE Access
影响因子：
3.9
作者：
Islam, Md Shafiqul;Younis, Mohamed F.
通讯作者：
Younis, Mohamed F.

A peak detection based OOK photoacoustic modulation scheme for air to underwater communication

基于峰值检测的空水通信OOK光声调制方案

DOI：
10.1016/j.optcom.2022.129078
发表时间：
2023
期刊：
Optics Communications
影响因子：
2.4
作者：
Islam, Md Shafiqul;Younis, Mohamed;Mahmud, Muntasir;Carter, Gary;Choa, Fow-Sen
通讯作者：
Choa, Fow-Sen

Acoustic Beam Characterization and Selection for Optimized Underwater Communication

DOI：
10.3390/app9132740
发表时间：
2019-07-01
期刊：
APPLIED SCIENCES-BASEL
影响因子：
2.7
作者：
Ahmed, Akram;Younis, Mohamed
通讯作者：
Younis, Mohamed

Machine Learning Based Sound Speed Prediction for Underwater Networking Applications

基于机器学习的水下网络应用声速预测

DOI：
10.1109/dcoss52077.2021.00074
发表时间：
2021
期刊：
17th International Conference on Distributed Computing in Sensor Systems (DCOSS
影响因子：
0
作者：
Ahmed, Ambrin B.;Younis, Mohamed;De Leon, Miguel Hernandez
通讯作者：
De Leon, Miguel Hernandez

A Novel Encoding Scheme for Improving the Bandwidth Efficiency of DPPM