Results 41 to 50 of about 1,844 (153)

RSS-based sensor localization in underwater acoustic sensor networks

open access: yes2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2016
Since the global positioning system (GPS) is not applicable underwater, source localization using wireless sensor networks (WSNs) is gaining popularity in oceanographic applications. Unlike terrestrial WSNs (TWSNs) which uses electromagnetic signaling, underwater WSNs (UWSNs) require underwater acoustic (UWA) signaling.
Tao Xu 0001   +3 more
openaire   +3 more sources

Topological configuration and optimization in underwater acoustic sensor networks: A survey

open access: yesInternational Journal of Distributed Sensor Networks, 2018
Marine environmental monitoring, marine resource development, and maritime rights and interests protection had put great demands on underwater acoustic sensor networks.
Ming He   +3 more
doaj   +1 more source

Loop Assisted Synchronization-Free Localization for Underwater Acoustic Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2014
Underwater acoustic sensor networks (UASNs) have attracted significant attention recently. Localization is one of the most important issues associated with UASNs.
Song Zhang   +3 more
doaj   +1 more source

A Blockchain-Based Edge Computing Group Signature Authentication Model for Underwater Clustered Networks

open access: yesJournal of Marine Science and Engineering
Underwater Wireless Sensor Networks (UWSNs) are pivotal for advancing maritime capabilities. These networks predominantly utilize acoustic communication, characterized by an open and shared acoustic channel and energy-limited underwater nodes, which ...
Yanxia Chen, Zhe Li, Rongxin Zhu
doaj   +1 more source

Convex optimization–based multi-user detection in underwater acoustic sensor networks

open access: yesInternational Journal of Distributed Sensor Networks, 2018
Multi-carrier code-division multiple access is an important technical means for high-performance underwater acoustic sensor networks. Nevertheless, severe multiple access interference is a huge challenge.
Jianping Wang   +4 more
doaj   +1 more source

A Survey on Deployment Algorithms in Underwater Acoustic Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2013
Node deployment is one of the fundamental tasks for underwater acoustic sensor networks (UASNs) where the deployment strategy supports many fundamental network services, such as network topology control, routing, and boundary detection. Due to the complex deployment environment in three-dimensional (3D) space and unique characteristics of underwater ...
Guangjie Han   +4 more
openaire   +2 more sources

An adaptive network allocation vector timer-based carrier sense multiple access with collision avoidance medium access control protocol for underwater acoustic sensor networks

open access: yesInternational Journal of Distributed Sensor Networks, 2017
Underwater sensor networks with acoustic communications are significantly challenged due to several unique characteristics, such as energy consumption, high propagation delay, and severely limited distance-dependent bandwidth.
Md Arifur Rahman   +2 more
doaj   +1 more source

Opportunistic Routing Protocol for Underwater Optical Sensor Networks Based on Fuzzy Logic

open access: yes水下无人系统学报
Underwater optical sensor networks offer significant advantages over traditional acoustic sensor networks, such as high bandwidth and low latency, making them a research hotspot to realize high-speed and real-time transmission of underwater data in sea ...
Rui SHEN   +6 more
doaj   +1 more source

Greedy Routing in Underwater Acoustic Sensor Networks: A Survey

open access: yesInternational Journal of Distributed Sensor Networks, 2013
Due to the significant advances of wireless sensor networks (WSNs), researchers are eager to use this technology in the subsea applications. Because of rapid absorption of high radio frequency in the water, acoustic waves are used as communication medium, which pose new challenges, including high propagation delay, high path loss, low bandwidth, and ...
Mohammad Taghi Kheirabadi   +1 more
openaire   +3 more sources

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