Proceedings of the 12th International Conference on Underwater Networks & Systems最新文献_第2页

Multimodal Underwater Networks: Recent Advances and a Look Ahead 多模式水下网络:最新进展和展望

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3152759

Filippo Campagnaro, Roberto Francescon, P. Casari, R. Diamant, M. Zorzi

{"title":"Multimodal Underwater Networks: Recent Advances and a Look Ahead","authors":"Filippo Campagnaro, Roberto Francescon, P. Casari, R. Diamant, M. Zorzi","doi":"10.1145/3148675.3152759","DOIUrl":"https://doi.org/10.1145/3148675.3152759","url":null,"abstract":"The recent uptake of non-acoustic underwater transmission systems suggests that in the near future it will be common for underwater devices to incorporate different physical communication technologies. Such devices are typically described as multimodal. They seek flexibility by compensating for the shortcomings of a given technology through the advantages of another. For example, a system encompassing acoustic and optical communication systems can provide long-range, low-bit rate communications, while enabling faster data transfer at very short range. As the development of non-acoustic underwater communications is taking momentum, so is the research on how to optimally exploit the multimodal communications capabilities in different scenarios. This paper presents a survey of past and recent work on this topic, covering the development both of the communication technologies and of the networking schemes and protocols for multimodal networks. As an example of the opportunities offered by multimodal communications, we discuss two different case studies. We conclude with an outlook on likely future developments for multimodal communications.","PeriodicalId":215853,"journal":{"name":"Proceedings of the 12th International Conference on Underwater Networks & Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129841003","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: 47

Exploring Simulation of Software-Defined Underwater Wireless Networks 软件定义水下无线网络仿真探索

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3148720

Li Wei, Yuxin Tang, Y. Cao, Zhaohui Wang, M. Gerla

引用次数: 8

Wireless Underwater Communication via Analog OFDM Modulated Light 基于模拟OFDM调制光的水下无线通信

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3148722

G. Ardelt, Martin Mackenberg, H. Hellbrück

引用次数: 2

Full Reconfiguration of Underwater Acoustic Networks through Low-Level Physical Layer Access 通过低层次物理层访问的水声网络的完全重构

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3148712

Filippo Campagnaro, Roberto Francescon, O. Kebkal, P. Casari, K. Kebkal, M. Zorzi

{"title":"Full Reconfiguration of Underwater Acoustic Networks through Low-Level Physical Layer Access","authors":"Filippo Campagnaro, Roberto Francescon, O. Kebkal, P. Casari, K. Kebkal, M. Zorzi","doi":"10.1145/3148675.3148712","DOIUrl":"https://doi.org/10.1145/3148675.3148712","url":null,"abstract":"Underwater acoustic communications experiments often involve custom implementations of schemes and protocols for the physical and data link layers. However, most commercial modems focus on providing reliable or optimized communication links, rather than on allowing low-level reconfiguration or reprogramming of modulation and coding schemes. As a result, the physical layer is typically provided as a closed, non-reprogrammable black box, accessible by the user only through a specific interface. While software-defined modems would be the ultimate solution to overcome this issue, having access to the symbols transmitted by the modems using a proprietary modulation format already opens up a number of research opportunities, e.g., aimed at the cross-layer design and optimization of channel coding schemes and communication protocols. In this paper, we take the latter approach. We consider the commercial EvoLogics modem, driven by a custom firmware version that bypasses the channel coding methods applied by the modem, and allows the user to set the transmit bit rate to any desired value within a given set. This makes it possible to evaluate different coding schemes in the presence of different bit rates. Our results show that the custom firmware offers sufficient flexibility to test different configurations of the coding schemes and bit rates, by providing direct access both to correctly decoded and to corrupted symbols, which can be separated at the receiver for further processing. In addition, we show that the DESERT Underwater framework can also leverage the same flexibility by employing low-level physical layer access in more complex networking experiments.","PeriodicalId":215853,"journal":{"name":"Proceedings of the 12th International Conference on Underwater Networks & Systems","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132638311","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

CUMAC-CAM: Addressing Triple Hidden Terminal Problems for Multi-channel Transmission in Underwater Sensor Networks CUMAC-CAM:水下传感器网络中多通道传输的三隐终端问题

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3148707

Purobi Rahman, M. S. Alam, Shamim Ara Shawkat, M. A. Hoque

{"title":"CUMAC-CAM: Addressing Triple Hidden Terminal Problems for Multi-channel Transmission in Underwater Sensor Networks","authors":"Purobi Rahman, M. S. Alam, Shamim Ara Shawkat, M. A. Hoque","doi":"10.1145/3148675.3148707","DOIUrl":"https://doi.org/10.1145/3148675.3148707","url":null,"abstract":"As multi-channel communication is becoming more and more common in Radio Frequency (RF) arena, acoustic communication protocols have also started to adopt the same concept to utilize multiple channels in Underwater Sensor Networks (UWSN). Although the deployment of multi-channel increases throughput significantly, it also opens up the possibility of collision occurrence due to the hidden terminal problem. In particular, the \"Triple Hidden Terminal (THT)\" problems, a phenomenon characterized by collision occurrence due to multi-hop, multi-channel communication with long propagation delay, persists more dominantly in UWSN. Existing MAC protocols try to mitigate the adverse effect of THT without utilizing the information of propagation delay that may be exploited to improve the performance of UWSN significantly. The current work proposes a Cooperative Underwater Multi-Channel MAC protocol with Channel Allocation Matrix (CUMAC-CAM). A new Channel Allocation Matrix (CAM) has been introduced for estimating propagation delay to ensure enhanced channel utilization. In this scheme, each node maintains a delay mapping database, based on which senders and receivers perform a scheduling algorithm before initiating any transmission. This mapping helps a node to predict whether it's upcoming packet transmission will collide with other nodes' transmission or not. In brief, the objective is to ensure successful transmission by mitigating triple hidden terminal problems in multi-channel underwater sensor networks as well as to enhance the channel utilization with the benefit of delay mapping and channel allocation assessment. Simulation results, carried out for performance analysis, show that the proposed MAC protocol is more efficient in terms of network throughput, energy consumption, end to end delay and packet delivery ratio compared to the contemporary CUMAC protocol.","PeriodicalId":215853,"journal":{"name":"Proceedings of the 12th International Conference on Underwater Networks & Systems","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126835167","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

Matched Field Source Localization as A Multiple Hypothesis Tracking Problem 匹配场源定位作为一个多假设跟踪问题

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3148723

Q. Wu, Wen Xu

引用次数: 4

BMF-MAC: A Bidirectional Multi-flow MAC Protocol for Multihop Underwater Acoustic Sensor Networks 多跳水声传感器网络的双向多流MAC协议

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3148708

Jenifar Rahman, M. S. Alam, Shamim Ara Shawkat, M. A. Hoque

{"title":"BMF-MAC: A Bidirectional Multi-flow MAC Protocol for Multihop Underwater Acoustic Sensor Networks","authors":"Jenifar Rahman, M. S. Alam, Shamim Ara Shawkat, M. A. Hoque","doi":"10.1145/3148675.3148708","DOIUrl":"https://doi.org/10.1145/3148675.3148708","url":null,"abstract":"Due to the atypical characteristics of the physical media in underwater acoustic sensor networks (UW-ASN)--mostly because of long propagation delay, low bandwidth and high error rate--several challenges arise while designing the MAC protocol. In this paper, we propose a Bidirectional Multi-flow MAC protocol (BMF-MAC) for UW-ASN, to efficiently handle multi-hop multi-flow traffic load patterns such a way that multiple streams of data transmissions concurrently proceed while adapting with varying traffic condition. BMF-MAC supports constitution of multi-hop flows by considering all pending packets in routing layer buffer and all flow setups requests from neighbors when setting up a flow, contrary to other underwater MAC protocols. The proposed MAC introduces a data transmission technique using the bidirectional multi-flow packet method for sending multiple data packets of the same flow in the reverse direction and thus improve channel utilization. The protocol is aimed to schedule more data transmission over multiple multi-hop flows, thus permitting rapid distribution of data and reduction of latency. Results show that BMF-MAC protocol outperforms existing CMRT protocol in terms of network throughput and packet delivery latency.","PeriodicalId":215853,"journal":{"name":"Proceedings of the 12th International Conference on Underwater Networks & Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125328552","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

Entropy Minimization Based Synchronization Algorithm for Underwater Acoustic Receivers 基于熵最小化的水声接收机同步算法

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3148719

Xiao Liu, Jean-François Bousquet

引用次数: 2

Aqua-Sim Next Generation: An NS-3 Based Underwater Sensor Network Simulator Aqua-Sim下一代:基于NS-3的水下传感器网络模拟器

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3148679

Robert Martin, S. Rajasekaran, Zheng Peng

{"title":"Aqua-Sim Next Generation: An NS-3 Based Underwater Sensor Network Simulator","authors":"Robert Martin, S. Rajasekaran, Zheng Peng","doi":"10.1145/3148675.3148679","DOIUrl":"https://doi.org/10.1145/3148675.3148679","url":null,"abstract":"Through the use of network simulators we are able to test and examine different combinations of protocols in low cost and controlled environments. To ensure the accuracy of these simulators it is crucial that they consistently expand and enhance their modules to offer extensive support. In this paper, we introduce Aqua-Sim Next Generation, an NS-3 based underwater sensor network simulator. This work is an expansion of Aqua-Sim, transferring to the newer core simulator, NS-3, for enhanced memory management and performance. Additionally, we revitalize legacy supported protocols through better packet handling and header usage. Aqua-Sim Next Generation offers real-world features to close the gap between simulation and real-system tests while providing additional modules for easier user development. With the goal to create a more efficient and functional simulator, we improved Aqua-Sim's architecture. Furthermore, we integrate a specialized underwater information-centric module to assist in simulating innovative techniques in underwater sensor networks. Experimental results show that Aqua-Sim Next Generation runs twice as fast compared with Aqua-Sim while showing large increases in memory management.","PeriodicalId":215853,"journal":{"name":"Proceedings of the 12th International Conference on Underwater Networks & Systems","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130631152","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: 26

iSonar: Software-defined Underwater Acoustic Networking for Amphibious Smartphones iSonar:用于两栖智能手机的软件定义水声网络

Proceedings of the 12th International Conference on Underwater Networks & Systems Pub Date : 2017-11-06 DOI: 10.1145/3148675.3148710

Francesco Restuccia, Emrecan Demirors, T. Melodia

{"title":"iSonar: Software-defined Underwater Acoustic Networking for Amphibious Smartphones","authors":"Francesco Restuccia, Emrecan Demirors, T. Melodia","doi":"10.1145/3148675.3148710","DOIUrl":"https://doi.org/10.1145/3148675.3148710","url":null,"abstract":"Recent technological advances have brought to the end-user market smartphones that are able to remain fully-functional even when submerged under water. This capability will soon enable the commercialization of a plethora of exciting smartphone apps, including life-saving systems such as real-time monitoring of scuba divers breathing. On the other hand, it becomes paramount to empower smartphones with end-to-end underwater communication capabilities. In this paper, we propose iSonar, the first system implementing reliable software-defined acoustic networking between water-proof smartphones. Specifically, iSonar transforms off-the-shelf smartphones into ultrasonic software \"radios\" that implement an orthogonal frequency division multiplexing-based communication system to exchange data under water. To this end, iSonar sends and receives information through the AUX interface and by implementing a lightweight network stack entirely in software. We have implemented a fully-functional hardware/software prototype of iSonar on Android smartphones and off-the-shelf electronic equipment, and extensively evaluated its performance through several experiments in a tank testbed. Results show that iSonar is able to achieve packet error rate (PER) of 10-3, which is significant considering the low audio sampling rate and the strong multipath effect induced by the water tank environment.","PeriodicalId":215853,"journal":{"name":"Proceedings of the 12th International Conference on Underwater Networks & Systems","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131887334","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: 6