scholarly journals UA-MAC: An Underwater Acoustic Channel Access Method for Dense Mobile Underwater Sensor Networks

2014 ◽  
Vol 10 (2) ◽  
pp. 374028 ◽  
Author(s):  
Chao Lv ◽  
Shuo Wang ◽  
Min Tan ◽  
Lan Chen
Keyword(s):  
Sensor Networks ◽  
Underwater Sensor Networks ◽  
Channel Access ◽  
Underwater Acoustic Channel ◽  
Access Method ◽  
Underwater Acoustic ◽  
Acoustic Channel

scholarly journals Modelling and Simulation on Acoustic Channel of Underwater Sensor Networks

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Li Li ◽  
Xiaoke Jin ◽  
Chenhe Lu ◽  
Zongbo Wei ◽  
Jin Li
Keyword(s):  
World Ocean ◽  
Simulation System ◽  
Packet Error Rate ◽  
Underwater Sensor Networks ◽  
Underwater Acoustic Channel ◽  
Average Delay ◽  
Seabed Sediment ◽  
Underwater Acoustic ◽  
Integrated Simulation ◽  
Acoustic Channel

The reliability of the modelling system mainly depends on the simulation of underwater acoustic channel characteristics. The reliability of simulator is improved because of the use of Bellhop in NS-Miracle. World Ocean Simulation System (WOSS) can retrieve the data of marine environment by accessing the database of seabed depth, sound speed profile and seabed sediment, and transmit them to Bellhop simulator automatically, so that the model is closer to the actual underwater acoustic transmission channel than not using WOSS. In order to verify the reliability of NS2/NS-Miracle simulation system with WOSS, a centralized underwater sensor network with five nodes is simulated on the integrated simulation system. The characteristic empirical model, Bellhop Ray-Tracing model, and WOSS combined with Bellhop model are, respectively, adopted to simulate underwater acoustic channel. The results of three types of simulation, such as average throughput, average delay, and packet error rate, and simulation time are very close under the same condition. It proves that the accuracy of integrated simulation system is as excellent as that of NS-Miracle. However, WOSS can automatically acquire the actual sea environment parameters and provide them to the simulator, which can improve the authenticity of the simulation system. Furthermore, three MAC protocols, Aloha-CS, CSMA/CA, and DACAP, are simulated on the integrated simulation system under the same condition including ocean environment, network topology, and parameters. The results show that the performance of CSMA/CA is greater than the other protocols in such networks. It also proves that the integrated simulation system can accurately simulate the relevant characteristics of the MAC protocol.

Vertical Underwater Acoustic Channel Model in Sensor Networks for Coastal Monitoring

2013 ◽  
Vol 11 (1) ◽  
pp. 382-388 ◽  
Author(s):  
Jorge Pires ◽  
Martin Colombo ◽  
Jose Gallardo ◽  
Carlos De Maziani ◽  
Romulo Alcoleas
Keyword(s):  
Sensor Networks ◽  
Channel Model ◽  
Coastal Monitoring ◽  
Underwater Acoustic Channel ◽  
Underwater Acoustic ◽  
Acoustic Channel

Autoregressive model of an underwater acoustic channel in the frequency domain

2022 ◽  
Vol 185 ◽  
pp. 108397
Author(s):  
Biao Liu ◽  
Ning Jia ◽  
Jianchun Huang ◽  
Shengming Guo ◽  
Dong Xiao ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Autoregressive Model ◽  
Underwater Acoustic Channel ◽  
Underwater Acoustic ◽  
Acoustic Channel

scholarly journals Modeling and Simulating on the Bandwidth and Capacity of Underwater Acoustic Channel

2021 ◽  
Vol 1903 (1) ◽  
pp. 012029
Author(s):  
Tieliang Guo ◽  
Zhijun Li ◽  
Wenxiang Zhang ◽  
Binghuai Li
Keyword(s):  
Underwater Acoustic Channel ◽  
Underwater Acoustic ◽  
Acoustic Channel
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