发布求助
文献互助 智能选刊 最新文献

Proceedings of the 11th International Conference on Underwater Networks & Systems最新文献

筛选
英文 中文
A multipath diversity combining in underwater CDMA system 水下CDMA系统中的多径分集组合
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001071
B. Seo, Ho-Shin Cho
{"title":"A multipath diversity combining in underwater CDMA system","authors":"B. Seo, Ho-Shin Cho","doi":"10.1145/2999504.3001071","DOIUrl":"https://doi.org/10.1145/2999504.3001071","url":null,"abstract":"In this study, we evaluate a multipath diversity reception in underwater CDMA system by performing a lake experiment. First, we design CDMA transmitter and receiver equipped with a multipath diversity with equal gain combining (EGC) and maximal ratio combining (MRC). Then, an experiment is performed at Lake Kyungcheon, South Korea to show that the diversity combining successfully corrects bit errors caused by multipath fading.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114086239","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
A multi-channel MAC protocol in underwater acoustic sensor networks 水声传感器网络中的多通道MAC协议
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001070
Ju-Phil Cho, Ho-Shin Cho
{"title":"A multi-channel MAC protocol in underwater acoustic sensor networks","authors":"Ju-Phil Cho, Ho-Shin Cho","doi":"10.1145/2999504.3001070","DOIUrl":"https://doi.org/10.1145/2999504.3001070","url":null,"abstract":"In this paper, a multi-channel medium access control (MAC) protocol is proposed to overcome the Large Interference Range Collision (LIRC) problem in underwater acoustic sensor networks (UWASNs), which has been known to occur when a handshaking based MAC protocol is jointly used with a power control. The proposed scheme divides the frequency band into two separate channels each used for control and data packets transmission. Considering the acoustic signal attenuation characteristics, higher frequency is used for data and lower frequency is used for control. And then, the data transmission power is controlled to escape the LIRC problem and simultaneously to save as much as possible. Furthermore with the separated channels, we can also reduce control-data packet collisions.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"4 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115851682","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
Acoustic modem for micro AUVs: design and practical evaluation 用于微型auv的声学调制解调器:设计与实用评价
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001076
C. Renner, A. J. Golkowski
{"title":"Acoustic modem for micro AUVs: design and practical evaluation","authors":"C. Renner, A. J. Golkowski","doi":"10.1145/2999504.3001076","DOIUrl":"https://doi.org/10.1145/2999504.3001076","url":null,"abstract":"The recent development of small, cheap AUVs such as MONSUN and Hippocampus enables a plethora of applications for underwater inshore monitoring. Among these are the detection of pollution sources in ports, water-quality monitoring in lakes, and the support and protection of divers in context of disaster management. These tasks profit from online reporting and controlling as well as swarm interaction between the AUVs. For this purpose, communication is required. In this paper, we present a prototype of an acoustic modem that is (i) small enough to be carried by micro AUVs in the sub 10 L class, (ii) consumes little enough energy to not diminish operation times of its host, (iii) comes at an attractive unit cost of less than €600, and (iv) can reliably communicate at distances of 50m and more. Due to its modular build, the modem can be easily customized and is hence suitable as research platform to analyze, e.g., MAC and routing protocols. We present results of detailed real-world studies of its communication range, packet reception rate, and ranging accuracy.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129845602","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: 27
Fractile-piecewise processing based spectrum sensing algorithms for underwater cognitive acoustics with impulsive noise: [extended abstract] 基于分形分段处理的脉冲噪声水下认知声学频谱感知算法[扩展摘要]
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001091
Luo Junshan, Wang Shilian, Zhang Wei
{"title":"Fractile-piecewise processing based spectrum sensing algorithms for underwater cognitive acoustics with impulsive noise: [extended abstract]","authors":"Luo Junshan, Wang Shilian, Zhang Wei","doi":"10.1145/2999504.3001091","DOIUrl":"https://doi.org/10.1145/2999504.3001091","url":null,"abstract":"A novel detector is proposed in the framework of fractile-piecewise processing based on the Cauchy-Gaussian (CG) distribution model of impulsive noise. According to the CG distribution, the impulsive noise can be decomposed into two blocks with one representing the Gaussian noise and the other representing the Cauchy noise. The detector processes two blocks separately, where the breakpoint is determined by the sample fractile. Simulations show that the proposed detector outperforms the Fractional Lower Order Moments (FLOM) and Cauchy detector under non-fading channels and Rayleigh fading channels. Besides, the low-computation complexity allows the proposed detector to be an attractive solution in the underwater cognitive acoustic (CA) system.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117049352","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
Improved node dynamic cooperation with network lifetime optimization for underwater sensor networks 基于网络寿命优化的水下传感器网络节点动态协作改进
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001095
Yuzhi Zhang, Haiyan Wang, Anyi Wang, Baiping Li, Jun Yao
{"title":"Improved node dynamic cooperation with network lifetime optimization for underwater sensor networks","authors":"Yuzhi Zhang, Haiyan Wang, Anyi Wang, Baiping Li, Jun Yao","doi":"10.1145/2999504.3001095","DOIUrl":"https://doi.org/10.1145/2999504.3001095","url":null,"abstract":"The node dynamic cooperation protocols in our previous work have been approved beneficial for failed data packets retransmission in the underwater data collection sensor networks, which dynamically select the normal nodes to relay overheard data according to channel conditions. However, when taken channel condition as selection metric, some nodes with good channel could be overly served as relays. To maximum lifetime of the whole network, we proposed an improved node cooperation protocol which employs both residual energy and overheard condition for relay selection. The simulation results have shown its lifetime performance improvement compared to the traditional protocols.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126735185","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
A new MAC based on RTT prediction for underwater acoustic networks 一种新的基于RTT预测的水声网络MAC
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001072
Yankun Chen, Fei Ji, Q. Guan, Fangjiong Chen, Hua Yu
{"title":"A new MAC based on RTT prediction for underwater acoustic networks","authors":"Yankun Chen, Fei Ji, Q. Guan, Fangjiong Chen, Hua Yu","doi":"10.1145/2999504.3001072","DOIUrl":"https://doi.org/10.1145/2999504.3001072","url":null,"abstract":"Most existing medium access control (MAC) protocols in underwater acoustic networks (UANs) ignore the delay variance that affects the estimation accuracy of round trip time (RTT). We predict the RTTs using Bayesian dynamic linear model. Using the predicted RTTs, we dynamically adjust the length of time slots in MAC. Experimental results show that the predicted values can adapt quickly to the delay variance in the acoustic channel.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133348489","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
Real-time transceiver implementation for SC-FDE acoustic modems SC-FDE声学调制解调器的实时收发器实现
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001110
Lin Li, Qunfei Zhang, Lifan Zhang, Yang Zhang
{"title":"Real-time transceiver implementation for SC-FDE acoustic modems","authors":"Lin Li, Qunfei Zhang, Lifan Zhang, Yang Zhang","doi":"10.1145/2999504.3001110","DOIUrl":"https://doi.org/10.1145/2999504.3001110","url":null,"abstract":"We have developed a real-time underwater acoustic modem with single-carrier frequency domain equalization (SC-FDE) transmission. Channel estimation operates in the time domain to improve accuracy, and equalization operates in the frequency domain to reduce complexity. The system is implemented on the floating-point OMAPL138 platform. Through optimization in the algorithm and program scheduling, the high data rate and real-time performance of the modem is guaranteed. We have tested the designed system in a lake experiment in June 2016. At a distance of 5 km, the modem achieved real-time raw data rates of 9600 bps with uncoded bit-error rates of 10−3 in the complex environment.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"1087 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133373709","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
Coverage control study of mobile uwasns nodes based on particle swarm optimization algorithm 基于粒子群优化算法的移动黄蜂节点覆盖控制研究
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001084
Chaoping Dong, Long-xiang Guo, Jingwei Yin
{"title":"Coverage control study of mobile uwasns nodes based on particle swarm optimization algorithm","authors":"Chaoping Dong, Long-xiang Guo, Jingwei Yin","doi":"10.1145/2999504.3001084","DOIUrl":"https://doi.org/10.1145/2999504.3001084","url":null,"abstract":"Underwater acoustic sensor networks (UWASNs), composed of acoustic sensor nodes, have become a hot field in ocean techniques. They were widely applied in marine data collection, event monitoring, resource exploration, etc. Coverage of zone is the fundamental address to the UWASNs deployment. A good deployment strategy should make effective area as much as possible, according to resource allocation. A lot of research are focusing on sensor networks deployment optimization on the land. Underwater deployment Strategies has not achieved good effect because of the complexity of ocean environment. This paper provides a deployment optimization strategy for mobile nodes using Particle Swarm Optimization Algorithm for UWASNs. This algorithm is based on simulation of birds swarm intelligence characteristics and aimed to solve the continuous variable optimization problem. Simulation Result shows that this method can obviously improve the coverage of deployment. If iterative times is enough, the coverage percent can reach 99% in specific situations. This algorithm can provide reference for mobile node deployment.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133438696","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
Multiple-input multiple-output under-ice acoustic communication in shallow water 浅水多输入多输出冰下声通信
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001099
Xiao Han, Jingwei Yin, G. Yu
{"title":"Multiple-input multiple-output under-ice acoustic communication in shallow water","authors":"Xiao Han, Jingwei Yin, G. Yu","doi":"10.1145/2999504.3001099","DOIUrl":"https://doi.org/10.1145/2999504.3001099","url":null,"abstract":"Multiple-input multiple-output (MIMO) techniques have been the subject of increased attention for underwater acoustic communication for its ability to significantly improve the channel capabilities. Recently, an under-ice MIMO acoustic communication experiment was conducted in shallow water which differs from previous works in that the water column was covered by about 40 centimeters thick sea ice. In this experiment, high frequency MIMO signals centered at 10 kHz were transmitted from a two-element source array to a four-element vertical receive array at 1km range. The unique under-ice acoustic propagation environment in shallow water seems naturally separate data streams from different transducers, but there is still co-channel interference. Time reversal followed by a single channel decision feedback equalizer is used in this paper to compensate for the inter-symbol interference and co-channel interference. It is demonstrated that this simple receiver scheme is good enough to realize robust performance using fewer hydrophones (i.e. 2) without the explicit use of complex co-channel interference cancelation algorithms such as parallel interference cancelation or serial interference cancelation. Two channel estimation algorithms based on least square and least mean square are also studied for MIMO communications in this paper and their performance are compared using experimental data.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115592633","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 simulator for swarm AUVs acoustic communication networking 群auv声通信网络模拟器
Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI: 10.1145/2999504.3001075
Guannan Li, Jun Liu, Xue Wang, Hongli Xu, Jun-hong Cui
{"title":"A simulator for swarm AUVs acoustic communication networking","authors":"Guannan Li, Jun Liu, Xue Wang, Hongli Xu, Jun-hong Cui","doi":"10.1145/2999504.3001075","DOIUrl":"https://doi.org/10.1145/2999504.3001075","url":null,"abstract":"This paper presents a simulator for swarm operations designed to verify algorithms for a swarm of autonomous underwater robots (AUVs), specifically for constructing an underwater communication network with AUVs carrying acoustic communication devices. This simulator consists of three nodes: a virtual vehicle node (VV), a virtual environment node (VE), and a visual showing node (VS). The modular design treats AUV models as a combination of virtual equipment. An expert acoustic communication simulator is embedded in this simulator, to simulate scenarios with dynamic acoustic communication nodes. The several simulations we have performed demonstrate that this simulator is easy to use and can be further improved.","PeriodicalId":378624,"journal":{"name":"Proceedings of the 11th International Conference on Underwater Networks & Systems","volume":"28 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113939345","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
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