发布求助
文献互助 智能选刊 最新文献

Proceedings of the 13th International Conference on Underwater Networks & Systems最新文献

筛选
英文 中文
Implementation of AUV and ship noise for link quality evaluation in the DESERT underwater framework 在DESERT水下框架下实现AUV和舰船噪声链路质量评价
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291966
Emanuele Coccolo, Filippo Campagnaro, Alberto Signori, F. Favaro, M. Zorzi
{"title":"Implementation of AUV and ship noise for link quality evaluation in the DESERT underwater framework","authors":"Emanuele Coccolo, Filippo Campagnaro, Alberto Signori, F. Favaro, M. Zorzi","doi":"10.1145/3291940.3291966","DOIUrl":"https://doi.org/10.1145/3291940.3291966","url":null,"abstract":"The underwater acoustic channel exhibits many challenges for communications. Since the underwater environment is becoming crowded with both static and mobile users, additional noise is produced in the channel by the physical components of the nodes. In particular, the noise generated by vessels causes interference to the packets transmitted by the acoustic modems, with a consequent increase in packet loss. This paper proposes methods for the simulation of the additive noise introduced by vessels traveling near or inside the network area. Specifically, the simulations include the presence of an Autonomous Underwater Vehicle (AUV) and a cargo ship, distinguished by their own noise patterns, in an underwater acoustic sensors network. All simulations have been performed with the DESERT Underwater framework.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134279718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Research on underwater information covert transmission technology 水下信息隐蔽传输技术研究
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291953
Liu Junkai, Dong Yang-ze, Zhang Wei
{"title":"Research on underwater information covert transmission technology","authors":"Liu Junkai, Dong Yang-ze, Zhang Wei","doi":"10.1145/3291940.3291953","DOIUrl":"https://doi.org/10.1145/3291940.3291953","url":null,"abstract":"In the process of ocean development, marine information is bound to contain important information for companies or institutions. How to transmit important information security covertly to the remote shore center without being intercepted by eavesdroppers becomes the key problem of underwater acoustic communication. William Roberts [1] studied the application of DSSS signals in covert communication, but the method of covert communication was achieved at the expense of communication rates. Han Xiao [2] proposed a bionic underwater acoustic communication technology in 2013, which selects dolphin whistles signals as synchronous and Pattern codes and the carries information were represented by the time delay difference between adjacent signals. Then in 2013, Liu Songzuo[3] proposed to use dolphin calls as information carriers and modulate the information on the adjacent between dolphin click signals. All of the above research is for the purpose of not being intercepted. The key point of this paper is not whether the underwater acoustic signal is intercepted, but to hide and transmit safely important information.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131785264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on high frequency sub-bottom profiler experimental results 高频亚底剖面仪实验结果研究
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291952
Xinghui Cao, Zhiguo Qu, Lixin Liu, Binjian Shen
{"title":"Research on high frequency sub-bottom profiler experimental results","authors":"Xinghui Cao, Zhiguo Qu, Lixin Liu, Binjian Shen","doi":"10.1145/3291940.3291952","DOIUrl":"https://doi.org/10.1145/3291940.3291952","url":null,"abstract":"In the first half of 2018, the high-frequency sub-bottom profiler completed a series of engineering prototype test and verification. Among them, in the April 6, 2018 to April 12, the device for the first time in Hangzhou thousand island lake area lake water work, on May 24, 2018-2018 on May 31, the device has been conducted on the golden pond in Ningbo offshore sea trial test, in the meantime, the device has the quietness of the abundant successful test area on the river in the park. These tests are the preliminary inspection of the self-developed deep-sea manganese nodules detection device and also the process of promoting the continuous improvement of the test device. During the experiment, we obtained broadband measured data under different experimental conditions on the frequency band of 110KHz for the first time through this series of experiments, which will facilitate us to conduct more in-depth mining and analysis of these hydroacoustic data.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128664490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Precoded OFDM over underwater acoustic channels 在水声信道上预编码OFDM
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291983
Jun Tao, L. An, Shuai Yao, Lin Zhou, Xiao Han, Zhen Qin
{"title":"Precoded OFDM over underwater acoustic channels","authors":"Jun Tao, L. An, Shuai Yao, Lin Zhou, Xiao Han, Zhen Qin","doi":"10.1145/3291940.3291983","DOIUrl":"https://doi.org/10.1145/3291940.3291983","url":null,"abstract":"The high peak-to-average power ratio (PAPR) and lack of frequency diversity are two well-known issues with orthogonal frequency-division multiplexing (OFDM) modulations, especially over underwater acoustic (UWA) channels. The precoding (spreading) technique is a viable way to simultaneously address the aforementioned issues, and it has long been researched in the wireless communication field. In the past decade, it has also gained increasing attention in multicarrier UWA communications. However, a comprehensive study on precoded OFDMs over UWA channels is still lacking. In this work, a unified system model accommodating linear precoding schemes is introduced for precoded OFDMs. Based on the model, a linear minimum mean square error (LMMSE) detector is developed for performance evaluation. Several typical precoding schemes are then evaluated and compared, in terms of PAPR and uncoded bit error rate (UBER), over the UWA channels measured in an at-sea experiment. This analysis showed the discrete Fourier transform (DFT) and the inverse DFT (IDFT) precoding schemes achieve the lowest PAPR. In terms of UBER, the DFT, IDFT, and discrete cosine transform (DCT) precodings achieved comparable performance that is significantly better than that of the standard OFDM over highly frequency-selective experimental channels.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115501424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A study on link adaptation using OFDM system in the shallow water of yellow sea of Korea 韩国黄海浅水OFDM系统链路自适应研究
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291975
Kilyong Kim, Kye-Won Kim, Tae-ho Im, Yong-Ho Cho, Min-Sang Kim, Hak-Lim Ko
{"title":"A study on link adaptation using OFDM system in the shallow water of yellow sea of Korea","authors":"Kilyong Kim, Kye-Won Kim, Tae-ho Im, Yong-Ho Cho, Min-Sang Kim, Hak-Lim Ko","doi":"10.1145/3291940.3291975","DOIUrl":"https://doi.org/10.1145/3291940.3291975","url":null,"abstract":"As the underwater channel environment changes frequently, it greatly affects the performance of underwater acoustic communication. Therefore, designing a communication system adaptive to the change is necessary for enabling stable communication in that environment. In this paper, an orthogonal frequency division multiplexing (OFDM) system structure with various communication parameters such as pilot spacing, repetition, modulation, and channel coding for the design of such a system. We used surveyed data of the Yellow Sea of South Korea to analyze the performance of coded bit error rate (BER) according to the modulation system, repetition, and pilot spacing.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131889205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Resource allocation in underwater acoustic OFDMA downlink systems 水声OFDMA下行系统中的资源分配
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291987
Zhaobang Chen, Meiqin Liu, Senlin Zhang, Ronghao Zheng
{"title":"Resource allocation in underwater acoustic OFDMA downlink systems","authors":"Zhaobang Chen, Meiqin Liu, Senlin Zhang, Ronghao Zheng","doi":"10.1145/3291940.3291987","DOIUrl":"https://doi.org/10.1145/3291940.3291987","url":null,"abstract":"It is important to effectively allocate resources in an underwater acoustic orthogonal frequency division multiple access (OFDMA) downlink system. Traditional resource allocation algorithms in radio usually have high computational complexity, which is not suitable for the fast time-varying underwater environment. In this paper, a rate adaptive resource allocation algorithm is investigated in which subcarrier and power allocation are carried out sequentially to reduce the process' computational complexity. During the subcarrier allocation, an algorithm based on a rate constrained by what satisfies the minimum rate request is proposed. Then by combining subcarrier allocation and channel state information, an approximate suboptimal power algorithm is proposed. Compared with the root-finding and linear methods, the proposed algorithm has a higher sum rate and relatively lower computational complexity under poor underwater acoustic communication (UAC).","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128865296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Underwater ambient noise analysis on dongshan offshore 东山近海水下环境噪声分析
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291958
Yougan Chen, Weijian Yu, Xiaokang Zhang, Xiaomei Xu
{"title":"Underwater ambient noise analysis on dongshan offshore","authors":"Yougan Chen, Weijian Yu, Xiaokang Zhang, Xiaomei Xu","doi":"10.1145/3291940.3291958","DOIUrl":"https://doi.org/10.1145/3291940.3291958","url":null,"abstract":"For setting the optimal transmitting power in underwater acoustic networks (UWAN), we need to measure the underwater ambient noise on different receiving stations so that we can get the better signal-to-noise (SNR), and make better use of the transmitting energy. We use hydrophone array to measure the underwater ambient noise, and analyze the power spectrum density (PSD) of noise with different frequencies to present the variability and complexity of the underwater ambient noise. The result shows that the PSD fluctuation of noise with frequency below 10 kHz is large but it is steady when the frequency is larger than 10 kHz. This can help us to set the proper transmitting power before deploying the UWAN.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132297978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
ROV assisted magnetic induction communication field tests in underwater environments 水下环境下ROV辅助磁感应通信现场试验
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291988
Debing Wei, S. Soto, Javier Garcia, Aaron T. Becker, Li Wang, M. Pan
{"title":"ROV assisted magnetic induction communication field tests in underwater environments","authors":"Debing Wei, S. Soto, Javier Garcia, Aaron T. Becker, Li Wang, M. Pan","doi":"10.1145/3291940.3291988","DOIUrl":"https://doi.org/10.1145/3291940.3291988","url":null,"abstract":"Magnetic Induction (MI) is a promising technique for near-field wireless underwater communications. Although the literature has some theoretical analyses and lab experiments for underwater MI communication, there is a lack of field tests in underwater environments, especially in subsea environments. In this paper, we leverage the remotely operated vehicle (ROV) and the remotely controlled boat (RCB) to develop an MI wireless communication system, and conduct field tests for MI communication performance in both fresh water and sea water. The experiment results show that even in the most challenging subsea environment, the MI communication has very good near-field transmission performance with a small coil antenna and low power consumption.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116036003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Underwater acoustic intensity field reconstruction by kriged compressive sensing 基于克里格压缩感知的水声强场重建
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291971
Jie Sun, Jiancheng Yu, Aiqun Zhang, A. Song, Fumin Zhang
{"title":"Underwater acoustic intensity field reconstruction by kriged compressive sensing","authors":"Jie Sun, Jiancheng Yu, Aiqun Zhang, A. Song, Fumin Zhang","doi":"10.1145/3291940.3291971","DOIUrl":"https://doi.org/10.1145/3291940.3291971","url":null,"abstract":"This paper presents a novel Kriged Compressive Sensing (KCS) approach for the reconstruction of underwater acoustic intensity fields sampled by multiple gliders following sawtooth sampling patterns. Blank areas in between the sampling trajectories may cause unsatisfying reconstruction results. The KCS method leverages spatial statistical correlation properties of the acoustic intensity field being sampled to improve the compressive reconstruction process. Virtual data samples generated from a kriging method are inserted into the blank areas. We show that by using the virtual samples along with real samples, the acoustic intensity field can be reconstructed with higher accuracy when coherent spatial patterns exist. Corresponding algorithms are developed for both unweighted and weighted KCS methods. By distinguishing the virtual samples from real samples through weighting, the reconstruction results can be further improved. Simulation results show that both algorithms can improve the reconstruction results according to the PSNR and SSIM metrics. The methods are applied to process the ocean ambient noise data collected by the Sea-Wing acoustic gliders in the South China Sea.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124919060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Robust TDA-MAC for practical underwater sensor network deployment: lessons from USMART sea trials 用于实际水下传感器网络部署的鲁棒TDA-MAC:来自USMART海上试验的经验教训
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291970
N. Morozs, P. Mitchell, Y. Zakharov, Rahul Mourya, Y. Pétillot, Tyler Gibney, M. Dragone, Benjamin Sherlock, J. Neasham, C. Tsimenidis, M. E. Sayed, Alistair C. McConnell, S. Aracri, A. Stokes
{"title":"Robust TDA-MAC for practical underwater sensor network deployment: lessons from USMART sea trials","authors":"N. Morozs, P. Mitchell, Y. Zakharov, Rahul Mourya, Y. Pétillot, Tyler Gibney, M. Dragone, Benjamin Sherlock, J. Neasham, C. Tsimenidis, M. E. Sayed, Alistair C. McConnell, S. Aracri, A. Stokes","doi":"10.1145/3291940.3291970","DOIUrl":"https://doi.org/10.1145/3291940.3291970","url":null,"abstract":"In this paper, we present the results of deploying the first test prototype of the USMART low cost underwater sensor network in sea trials in Fort William, United Kingdom, on 29 June 2018 and 3 July 2018. We demonstrate the first ever hardware implementation of the Transmit Delay Allocation MAC (TDA-MAC) protocol for data gathering in underwater acoustic sensor networks (UASNs). The results show a successful application of TDA-MAC to remote environmental monitoring, integrating a range of sensor nodes developed by the universities of Heriot-Watt, York, Newcastle and Edinburgh. We focus on the practical challenges and their mitigation strategies related to TDA-MAC to increase its robustness in real-world deployments, compared with theoretical and simulation-based studies. The lessons learned from the sea trials reported in this paper prompted several crucial modifications to TDA-MAC which form a solid foundation for further work on the development of TDA-MAC based UASNs.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125532637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信