Results 241 to 250 of about 3,638,159 (285)

An overview on Underwater Acoustic Sensor Networks

2010 17th International Conference on Telecommunications, 2010
Underwater Acoustic Sensor Networks (UW-ASNs) is of growing research interest. This paper gives description on underwater channel model. It overviews transmission schemes in data link layer and network layer, and simulates different transmission schemes. Finally, it offers comparison and guides for future development.
Yifan Wang, Zaichen Zhang, Guangguo Bi
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Challenges and opportunities for underwater sensor networks

2016 12th International Conference on Innovations in Information Technology (IIT), 2016
Wireless sensor networks (WSN) are distributed event-based systems comprising of tiny nodes capable of sensing the environmental phenomena with a limited battery, low pro­cessing power and short-range radio for communication. Most of the applications of sensor network are concerned with sensing scalar sensor such as temperature, pressure, humidity, or ...
Adil A. Sheikh, Emad A. Felemban, Muhamad Felemban, Saad B. Qaisar   +3 more
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A Survey on Sensor Deployment in Underwater Sensor Networks

2014
Underwater sensor networks are becoming a new field, mainly applied for ocean data collection, ocean sampling, environmental and pollution monitoring, etc. Similar to terrestrial sensor networks, it is essential to provide communication coverage in such a way that the whole monitoring area is covered by the sensor nodes in UWSN.
Dewen Zeng, Xiaoling Wu 0002, Yanwen Wang 0001, Hainan Chen, Kangkang Liang, Lei Shu 0001   +5 more
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Underwater Wireless Hybrid Sensor Networks

2008 IEEE Symposium on Computers and Communications, 2008
Underwater sensor networks (USNs) promise innovative and exciting applications, viz. oceanographic data collection, environment monitoring, exploration, and tactical surveillance. Underwater wireless sensor networks (UWSNs) though pose significant research challenges due to the harsh underwater environment.
Kashif Ali, Hossam S. Hassanein
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UWSim: A Simulator for Underwater Sensor Networks

SIMULATION, 2008
We present a new simulator for Underwater Sensor Networks (UWSN), named UWSim. Most of the currently available simulators focus greatly on ground-based sensor and ad hoc networks; they do not consider the factors that affect the underwater communication. UWSim, on the other hand, has its focus on handling scenarios specific to UWSN environments.
Sanjay K. Dhurandher, Sudip Misra, Mohammad S. Obaidat, Sushil Khairwal   +3 more
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The Redeployment Issue in Underwater Sensor Networks

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference, 2008
The mobility of underwater sensor nodes makes the network topology inconveniently controlled and slowly changed. Thus, in order to enable underwater sensor networks to work more effectively, it is necessary for us to periodically detect the coverage rate and redeploy nodes to non-coverage areas.
Bin Liu 0004, Fengyuan Ren, Chuang Lin 0002, Yaqin Yang, Rongfei Zeng, Hao Wen 0014   +5 more
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Pressure Routing for Underwater Sensor Networks

2010 Proceedings IEEE INFOCOM, 2010
A SEA Swarm (Sensor Equipped Aquatic Swarm) is a sensor "cloud" that drifts with water currents and enables 4D (space and time) monitoring of local underwater events such as contaminants, marine life and intruders. The swarm is escorted at the surface by drifting sonobuoys that collect the data from underwater sensors via acoustic modems and report it ...
Uichin Lee, Paul Wang, Youngtae Noh, Luiz Filipe M. Vieira, Mario Gerla, Jun-Hong Cui   +5 more
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Network coding in Underwater Sensor Networks

2013 MTS/IEEE OCEANS - Bergen, 2013
In this paper, we expand upon previous work in the application of network coding to Underwater Sensor Networks (UWSN). Network coding allows information from multiple packets to be encoded into a single packet and decoded upon receiving sufficient linearly independent encoded packets, improving throughput and providing redundancy for error recovery ...
Claude Manville, Abdulaziz Miyajan, Ayman Alharbi, null Haining Mo, Michael Zuba, null Jun-Hong Cui   +5 more
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On-Demand Asynchronous Localization for Underwater Sensor Networks

IEEE Transactions on Signal Processing, 2012
In this paper we consider the issue of localization in the context of underwater sensor networks which contain anchor nodes with perfect knowledge of their position, but asynchronous clocks. By taking advantage of a sequential broadcasting protocol the entire network can be localized simultaneously with minimal overhead.
Patrick Carroll, Kaleel Mahmood, Shengli Zhou 0001, Hao Zhou, Xiaoka Xu, Jun-Hong Cui   +5 more
openaire   +2 more sources

Underwater Wireless Sensor Networks

2020
In this chapter, we will provide the brief introduction of wireless sensor networks (WSNs) and the detailed introduction of underwater wireless sensor networks (UWSNs). We define the basic issues and different applications related to UWSNs. This chapter provides the description about the difference between the terrestrial WSNs and UWSNs.
Usha Jain, Muzzammil Hussain
openaire   +1 more source