scholarly journals APE-Sync: An Adaptive Power Efficient Time Synchronization for Mobile Underwater Sensor Networks

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 52379-52389 ◽  
Author(s):  
Feng Zhou ◽  
Qi Wang ◽  
Guangjie Han ◽  
Gang Qiao ◽  
Zongxin Sun ◽  
...  
Keyword(s):  
Sensor Networks ◽  
Time Synchronization ◽  
Underwater Sensor Networks ◽  
Power Efficient ◽  
Adaptive Power

Adaptive Power Controlled Routing for Underwater Sensor Networks

2012 ◽  
pp. 549-560 ◽  
Author(s):  
Manal Al-Bzoor ◽  
Yibo Zhu ◽  
Jun Liu ◽  
Ammar Reda ◽  
Jun-Hong Cui ◽  
...  
Keyword(s):  
Sensor Networks ◽  
Underwater Sensor Networks ◽  
Adaptive Power

Mobi-Sync: Efficient Time Synchronization for Mobile Underwater Sensor Networks

2013 ◽  
Vol 24 (2) ◽  
pp. 406-416 ◽  
Author(s):  
Jun Liu ◽  
Zhong Zhou ◽  
Zheng Peng ◽  
Jun-Hong Cui ◽  
Michael Zuba ◽  
...  
Keyword(s):  
Sensor Networks ◽  
Time Synchronization ◽  
Underwater Sensor Networks

scholarly journals Two-Phase Time Synchronization-Free Localization Algorithm for Underwater Sensor Networks

2017 ◽  
Author(s):  
Junhai Luo ◽  
Liying Fan
Keyword(s):  
Sensor Networks ◽  
Time Synchronization ◽  
Sensor Nodes ◽  
Second Phase ◽  
Underwater Sensor Networks ◽  
Localization Algorithm ◽  
Two Phase ◽  
Phase Time ◽  
Anchor Nodes ◽  
Range Free

Underwater Sensor Networks (UWSNs) can enable a broad range of applications such as resource monitoring, disaster prevention, and navigation-assisted. It is especially relevant for sensor nodes location in UWSNs. Global Positioning System (GPS) is not suitable for using in UWSNs because of the underwater propagation problems. Hence some localization algorithms based on the precise time synchronization between sensor nodes have been proposed which are not feasible for UWSNs. In this paper, we propose a localization algorithm called Two-Phase Time Synchronization-Free Localization Algorithm (TP-TSFLA). TP-TSFLA contains two phases, namely, range-based estimation phase and range-free evaluation phase. In the first phase, we address a time synchronization-free localization scheme base on the Particle Swarm Optimization (PSO) algorithm to decrease the localization error. In the second phase, we propose a Circle-based Range-Free Localization Algorithm (CRFLA) to locate the unlocalized sensor nodes which cannot obtain the location information through the first phase. In the second phase, sensor nodes which are localized in the first phase act as the new anchor nodes to help realize localization. Hence in this algorithm, we use a small number of mobile beacons to help achieve location without any other anchor nodes. Besides, to improve the precision of the range-free method, an extension of CRFLA by designing a coordinate adjustment scheme is updated. The simulation results show that TP-TSFLA can achieve a relative high localization ratio without time synchronization.

scholarly journals Towards Controlled Transmission: A Novel Power-Based Sparsity-Aware and Energy-Efficient Clustering for Underwater Sensor Networks in Marine Transport Safety

Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 854
Author(s):  
Israa Adil Hayder ◽  
Sundas Naqeeb Khan ◽  
Faisal Althobiani ◽  
Muhammad Irfan ◽  
Muhammad Idrees ◽  
...  
Keyword(s):  
Sensor Networks ◽  
Energy Efficient ◽  
Power Level ◽  
Autonomous Underwater Vehicles ◽  
Underwater Sensor Networks ◽  
Transmission Power ◽  
Transmission Mechanisms ◽  
Efficient Management ◽  
Adaptive Power ◽  
Energy Efficient Clustering

Energy-efficient management and highly reliable communication and transmission mechanisms are major issues in Underwater Wireless Sensor Networks (UWSN) due to the limited battery power of UWSN nodes within an harsh underwater environment. In this paper, we integrate the three main techniques that have been used for managing Transmission Power-based Sparsity-conscious Energy-Efficient Clustering (CTP-SEEC) in UWSNs. These incorporate the adaptive power control mechanism that converts to a suitable Transmission Power Level (TPL), and deploys collaboration mobile sinks or Autonomous Underwater Vehicles (AUVs) to gather information locally to achieve energy and data management efficiency (Security) in the WSN. The proposed protocol is rigorously evaluated through extensive simulations and is validated by comparing it with state-of-the-art UWSN protocols. The simulation results are based on the static environmental condition, which shows that the proposed protocol performs well in terms of network lifetime, packet delivery, and throughput.

DA-Sync: A Doppler-Assisted Time-Synchronization Scheme for Mobile Underwater Sensor Networks

2014 ◽  
Vol 13 (3) ◽  
pp. 582-595 ◽  
Author(s):  
Jun Liu ◽  
Zhaohui Wang ◽  
Michael Zuba ◽  
Zheng Peng ◽  
Jun-Hong Cui ◽  
...  
Keyword(s):  
Sensor Networks ◽  
Time Synchronization ◽  
Underwater Sensor Networks ◽  
Synchronization Scheme

scholarly journals TS-MUWSN: Time Synchronization for Mobile Underwater Sensor Networks

2016 ◽  
Vol 41 (4) ◽  
pp. 763-775 ◽  
Author(s):  
Oriol Pallares ◽  
Pierre-Jean Bouvet ◽  
Joaquin del Rio
Keyword(s):  
Sensor Networks ◽  
Time Synchronization ◽  
Underwater Sensor Networks
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