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

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Multi-beam uncoordinated random access MAC for underwater communication networks 水下通信网络多波束非协调随机接入MAC
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291979
B. Ehlers, A. Gupta, R. Mccarthy
{"title":"Multi-beam uncoordinated random access MAC for underwater communication networks","authors":"B. Ehlers, A. Gupta, R. Mccarthy","doi":"10.1145/3291940.3291979","DOIUrl":"https://doi.org/10.1145/3291940.3291979","url":null,"abstract":"We consider a multi-beam directional network where the nodes have digital antenna arrays capable of performing post-reception digital beamforming without prior knowledge of angle-of-arrival. Post-reception digital beamforming has greatly advanced uncoordinated random access in directional networks where, in the past, scheduling of beams was a bottleneck. A key trade off in these systems is number of antennas and corresponding beam-width. We demonstrate, through numerical simulations, that the random access MAC under consideration, MB-URAM, does not perform as well as the idealized version originally presented [Kuperman et al. 2016]. We demonstrate how interference between coincident nodes cause a significant number of packet drops even with a very large number of antennas. Finally, we suggest how to mitigate the effect of the interference and introduce ideas to do so.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"49 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":"127250822","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: 2
Study on interference effect against MAC layer protocol in underwater acoustic network 水声网络中MAC层协议的干扰效应研究
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291989
Junqing Zhang, Yangze Dong, Gangqiang Zhang, Junkai Liu
{"title":"Study on interference effect against MAC layer protocol in underwater acoustic network","authors":"Junqing Zhang, Yangze Dong, Gangqiang Zhang, Junkai Liu","doi":"10.1145/3291940.3291989","DOIUrl":"https://doi.org/10.1145/3291940.3291989","url":null,"abstract":"With the development of underwater acoustic communication and networking, the past forty years have witnessed rapid progress in the application of underwater acoustic networks (UANs). As the necessary component of large-area underwater monitoring and surveillance systems, UANs may confront malicious attacks. Within UANs, MAC layer protocols play an important role in their formation and maintenance. For the sake of the security of UAN itself, it is important to understand the mechanisms of attack against the protocols. One of the main methods is jamming, whose effects are studied in this paper via simulation and experiments. Conflict making, NAV interference and modification of the back-off window interference methods are adapted to gain insight into the approaches of attack, with results showing that the NAV interference method has the better interference effect.","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":"127892608","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
Optical imaging study of underwater acousto-optical fusion imaging systems 水下声光融合成像系统的光学成像研究
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291982
Jun Liu, Wenxue Guan, Xiaoyu Wang, Jiaxin Liu
{"title":"Optical imaging study of underwater acousto-optical fusion imaging systems","authors":"Jun Liu, Wenxue Guan, Xiaoyu Wang, Jiaxin Liu","doi":"10.1145/3291940.3291982","DOIUrl":"https://doi.org/10.1145/3291940.3291982","url":null,"abstract":"Existing ocean visualization studies are usually conducted independently using either sonar or optical imaging. However, they have shortcomings in different engineering applications. Acoustic imaging is not comprehensive enough to show the details of the target, and the perspective of optical imaging is not extensive enough. Combining the advantages of optics and acoustics, this paper proposes a joint imaging method with acoustic communication-assisted decision-making and optical image stitching, aiming to improve information acquisition efficiency in the ocean visualization process. The joint imaging method relies on sonar technology as the decision-making layer to obtain the position information, then it sends instructions to AUV by acoustic communication and get the details of the target by the AUV-mounted camera which forms the executive layer. Finally, it conducts smoothing and mosaic processing on the optical image. The system can efficiently obtain complete, comprehensive, and detailed ocean visualization information through the advantages of agility of acoustic and accuracy of optics.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"191 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":"115727776","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: 2
A robust and efficient digital FM underwater acoustic voice communication system based on SNR estimation 基于信噪比估计的数字调频水声语音通信系统
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291974
Xiaoquan Ke, Fei Yuan, Chun-xian Gao, En Cheng
{"title":"A robust and efficient digital FM underwater acoustic voice communication system based on SNR estimation","authors":"Xiaoquan Ke, Fei Yuan, Chun-xian Gao, En Cheng","doi":"10.1145/3291940.3291974","DOIUrl":"https://doi.org/10.1145/3291940.3291974","url":null,"abstract":"Considering the poor performance of the traditional underwater acoustic voice-communication system that adopts single-sideband (SSB) modulation, we proposed an underwater acoustic voice-communication system adopting frequency modulation (FM). The proposed system achieves digital FM modulation and digital FM demodulation through software radio, which will improve the communication performance meanwhile maintaining a low complexity of the system. To accurately estimate the state of underwater acoustic channels, we improved an estimation algorithm to estimate signal-to-noise ratio (SNR) of the received signal. We also proposed a new FM demodulation algorithm to increase the demodulation efficiency.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"41 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":"123735446","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: 1
Development of broadband high frequency sub-bottom profiler 宽带高频次底剖面仪的研制
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291949
Xinghui Cao, Zhiguo Qu, Lixin Liu, Binjian Shen, Wen Xu
{"title":"Development of broadband high frequency sub-bottom profiler","authors":"Xinghui Cao, Zhiguo Qu, Lixin Liu, Binjian Shen, Wen Xu","doi":"10.1145/3291940.3291949","DOIUrl":"https://doi.org/10.1145/3291940.3291949","url":null,"abstract":"A high frequency 1 sub-bottom profiler with a central frequency of 110KHz and a bandwidth of 30KHz was developed. The instrument has a better resolution than 5cm for the shallow layer of the seafloor and is used to detect acoustic characteristics of seafloor sediments. The instrument can eventually operate at 6000m depth. The test results show that the transmitter and receiver of the instrument work stably, the pulse compression waveform of wideband frequency modulated signal is effective, the resolution is high, and the indicators basically meet the expectation. The sediment detection depth in the fine grain area is more than 1 meter, which satisfies the requirement of geotechnical mechanics to the detection depth of sedimentary structure.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"67 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":"123606403","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 performance analysis and optimization methods of bistatic collaborative detection 双基地协同检测性能分析与优化方法研究
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291986
Long-xiang Guo, Ting Liu, Jiayun Zou, Qing Zhou, Xueli Sheng
{"title":"Research on performance analysis and optimization methods of bistatic collaborative detection","authors":"Long-xiang Guo, Ting Liu, Jiayun Zou, Qing Zhou, Xueli Sheng","doi":"10.1145/3291940.3291986","DOIUrl":"https://doi.org/10.1145/3291940.3291986","url":null,"abstract":"Compared with the monostatic sonar system, the bistatic sonar system has numerous advantages, such as being quick and flexible to deploy, utilizing strong concealment, and having a large detection range. The detection performance analysis system, which consists of the sound source and propagation loss level, the interfering noise level, the marine reverberation average strength level, and the target echo sound level, was established in this study. Aiming at a specified area, this study realizes a performance analysis based on the detection probabilities of targets in different locations. In terms of detection performance, the bistatic sonar system especially faces considerable direct wave interference. Therefore, a method for restraining direct wave interference based on zero constraint beam-forming was developed. This method can mitigate the both narrow-band and broadband direct wave interference problems. Another method based on space timeadaptive processing was also developed. This method can also solve direct wave interference problem. Using the above performance analysis system, considering the influence of strong direct wave interference, the detection range can increase 35% by using the zero constraint beam-forming method, thus further enhancing the detection performance.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"37 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":"130037348","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: 1
Self-organizing synergetic denial-of-service in underwater named data networking 水下命名数据网络中的自组织协同拒绝服务
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291954
Yue Li, Yingjian Liu, Haoyu Yin, Hao Teng
{"title":"Self-organizing synergetic denial-of-service in underwater named data networking","authors":"Yue Li, Yingjian Liu, Haoyu Yin, Hao Teng","doi":"10.1145/3291940.3291954","DOIUrl":"https://doi.org/10.1145/3291940.3291954","url":null,"abstract":"In recent years, Named Data Networking (NDN) begins to be applied to Underwater Sensor Networks (UWSN). Although Underwater Named Data Networking (UNDN) performs well in data transmission, it still faces some security threats from Denial-of-Service (DoS) attacks. This paper proposed Self-Organizing Synergetic Denial-of-Service (SOSDoS) in which high-latency malicious interests sent by attackers will be cooperatively replied by other attackers. Experimental results illustrate that the SOSDoS attack almost trebled the network traffic caused by traditional DoS attack. Furthermore, a defense method based on classification was proposed. Simulation experiments proved that the proposed defense method can effectively detect and resist both SOSDoS attacks and traditional DoS attacks. Finally, we highlight some future works of UNDN.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"16 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":"127151336","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
Doppler correction of mobile acoustic communication via adjustable AD sampling rate 基于可调AD采样率的移动声通信多普勒校正
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291978
Xiaoyang Wang, Siyuan Zheng, Qiuyang Tao, Fumin Zhang, Adtjn Song, F. Tong
{"title":"Doppler correction of mobile acoustic communication via adjustable AD sampling rate","authors":"Xiaoyang Wang, Siyuan Zheng, Qiuyang Tao, Fumin Zhang, Adtjn Song, F. Tong","doi":"10.1145/3291940.3291978","DOIUrl":"https://doi.org/10.1145/3291940.3291978","url":null,"abstract":"This paper presents a hardware Doppler suppression method for underwater acoustic (UWA) communication with compact-sized underwater platforms such as autonomous underwater vehicles (AUVs). The proposed method adopts an adjustable AD (analog-to-digital) sampling rate, leading to significant reductions in the computational complexity of the communication receiver. Both direct sequence spread spectrum (DSSS) and channel coding technology are incorporated into the proposed Doppler compensation method to design a mobile UWA communication system. Sea experiments have been conducted with moving vehicles, and the experimental results have demonstrated the effectiveness of the proposed method.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"11 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":"133684863","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: 2
A power-controlled depth-based routing protocol for underwater wireless sensor networks 水下无线传感器网络的功率控制深度路由协议
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291945
Junjie Wang, Hua Yu, Q. Guan, Fei Ji, Fangjiong Chen
{"title":"A power-controlled depth-based routing protocol for underwater wireless sensor networks","authors":"Junjie Wang, Hua Yu, Q. Guan, Fei Ji, Fangjiong Chen","doi":"10.1145/3291940.3291945","DOIUrl":"https://doi.org/10.1145/3291940.3291945","url":null,"abstract":"An energy efficiency routing protocol based on Depth-Based Routing (DBR) protocol for data collection scene is proposed. Protocol utilizes probe packet to calculate the difference between the minimum signal-to-noise ratio (SNR) required to correctly receive a packet and actual SNR of received request, and then adjust transmission power to send a large amount of data. Hence, the energy of sender can be saved. Simulation shows that the energy efficiency of the protocol can be improved about 20% compared to DBR.","PeriodicalId":429405,"journal":{"name":"Proceedings of the 13th International Conference on Underwater Networks & Systems","volume":"21 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":"131632879","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: 1
New non-reference image quality evaluation method for underwater turbulence blurred images 水下湍流模糊图像的非参考图像质量评价新方法
Proceedings of the 13th International Conference on Underwater Networks & Systems Pub Date : 2018-12-03 DOI: 10.1145/3291940.3291968
Zhanghe Miao, Fei Yuan, Chun-xian Gao, En Cheng
{"title":"New non-reference image quality evaluation method for underwater turbulence blurred images","authors":"Zhanghe Miao, Fei Yuan, Chun-xian Gao, En Cheng","doi":"10.1145/3291940.3291968","DOIUrl":"https://doi.org/10.1145/3291940.3291968","url":null,"abstract":"Turbulence is an important cause of image distortion in an underwater ocean environment, along with light scattering and color reduction. Turbulence blur is a universal phenomenon of underwater image degradation, and causes a loss of high frequency portion and image detail. We need a metric to evaluate underwater image quality and provide a reference for the restoration of turbulence-blurred images. It is difficult to obtain clear original images, and a subjective quality metric is time-consuming and impractical for real-time implementation, so we propose a new no-reference, objective quality evaluation algorithm, by employing CIELab color space features and mean subtracted contrast normalized (MSCN) statistical features to assess the quality of blurred images. The experimental results illustrate that our metric outperforms the other advanced image-quality metrics in the underwater turbulent-image dataset, and has a comparable performance in other datasets. Importantly, besides being highly in line with human perception, the proposed metric can effectively predict image quality with low computational complexity and meet the requirement of a real-time system.","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":"130165441","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
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