single underwater acoustic sensor
Cooperative Authentication in Underwater Acoustic Sensor Networks
... of underwater acoustic com- munications (UWAC) for both industrial and military operations, there is a need to ensure communication ...by underwater acoustic networks (UWANs), which are often ...
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Analyzing the performance of Aloha in string multi hop underwater acoustic sensor networks
... high impact on the performance of the networks. Cur- rently, theoretical analyses regarding MAC methods for UASNs focus on single-hop topology, which are summa- rized in surveys [5,9]. In particular, Xie and Cui ...
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A New Localization Algorithm for Underwater Acoustic Sensor Networks
... Neural networks are composed of simple elements which act parallel. These elements are inspired by biological neural systems. In nature, neural networks function is defined by the way they are connected. As a result, we ...
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A Survey on Underwater Acoustic Sensor Networks: Perspectives on Protocol Design for Signaling, MAC and Routing
... the sensor nodes of an UASN can do data processing more than the past ...all sensor nodes of a WSN by a final central processing unit (CPU) at the receiver side, where in this architecture, the ...
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Routing Protocols for Underwater Wireless Sensor Networks
... The acoustic sensor nodes cluster exclusively within their layers with contending radii set based on the distances between the respective cluster-heads and the sink ...uses single- and multi-hop ...
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Optimization of Multiple Gateway Deployment for Underwater Acoustic Sensor Networks
... of underwater acoustic signal (approximately 1500m/s, with variation due to minor changes of pressure, temperature, and salinity of water) is lower than electromagnetic wave propagation speed by five orders ...
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A Hybrid ARQ scheme combining erasure codes and selective retransmissions for reliable data transfer in underwater acoustic sensor networks
... a single packet As described in [36], we adopt certain modifications for the way in which encoded packets are created for trans- ...a single long code ...
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Energy Efficient and Position Aware Routing for Auv Aided Underwater Acoustic Sensor Network
... wireless sensor network (UWSN) application has recently increased due to aqueous exploration in sea, ocean for natural gas, oil, environment monitoring, marine life monitoring, submarine pipeline, cable monitoring ...
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Challenges for Efficient Communication in Underwater Acoustic Sensor Network
... Wireless Sensor Networks, along with their shortcomings in the underwater environment, and the fundamental challenges for the development of an efficient reliable transport layer protocol for ...In ...
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Energy Efficient Reconfigurable MAC Protocol for Underwater Acoustic Sensor Network
... Fig. 5.2 shows the effect of hidden nodes on the channel utilization of the T-Lohi protocol. Solid lines in the graph represent the channel utilization of the T-Lohi protocol with respect to the offered load (number of ...
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Title: Acoustic Underwater Wireless Sensor Networks: Channel Gain and Channel Communication
... bottom sensor nodes , ...webs, sensor nodes drift at disparate depths to discern a ...Every single sensor is anchored to the marine bottom and outfitted alongside a drifting buoy that can be ...
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Analysis on Data Transmission in Underwater Acoustic Sensor Network for Complex Environment
... © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 857 ments over a given territory. To accomplish a goal, sensors and vehicles self-arrange in a self-governing system which can adjust to ...
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Energy Ef ficient and Reliable Communication in Underwater Acoustic Sensor Networks
... every sensor is important and the process of estimating the location of each node in a sensor network is known as ...terrestrial sensor networks, there are relatively few localization schemes for ...
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Enhanced hop-by-hop routing algorithms for underwater acoustic sensor networks
... in underwater networks these radio waves at high frequency are prone to absorption but could propagate at ultra-low frequencies ranging between 30 - 300 Hz (Akyildiz et ...the underwater environment ...
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Study and Analysis of Dynamic Routing Protocols for Different Parameters in Underwater Acoustic Sensor Networks
... in underwater environment, sensor deployment is very difficult to implement in such an ...static underwater network under the time distance shortest path ...in underwater sensor ...in ...
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Re-Evaluation of RF Electromagnetic Communication in Underwater Sensor Networks
... Table 4 summarizes realizable ranges and example bit rates for compact underwater EM communication systems. Based on the figures from Table 2, propagation velocity at higher fre- quencies changes less dramatically ...
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Channel Equalization for Single Carrier MIMO Underwater Acoustic Communications
... In this paper, we propose a new time-domain MIMO equalization scheme for single carrier UWA communica- tions. Different from conventional schemes performing joint equalization and phase tracking [3, 7–9, 17], where ...
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Performance Optimization and Parallelization of a Parabolic Equation Solver in Computational Ocean Acoustics on Modern Many core Computer
... for underwater acoustic ...from single-frequency calculation to multi-frequency calculation successfully by using OpenMP+MPI hybrid programming techniques on the mainstream HPC ...of ...
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Ocean Dynamics and Sediment Transport Measuring Acoustic and Optical Instruments
... temperature sensor for sound velocity correction, compass for relative motion, and pitch/roll sensor for vertical and horizontal movement are incorporated in the ...
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EARQ: ENERGY AWARE ROUTING FOR REAL-TIME SENSOR NETWORKS
... Underwater wireless sensor networks consist of a certain number of sensors and vehicles that interact to collect data and perform collaborative ...because sensor nodes are powered by batteries, ...
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