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  1. ieeexplore.ieee.org

    In this paper, we propose a Medium Access Control (MAC) protocol for mobile Underwater Acoustic Sensor Networks (UWASNs), based on framed-ALOHA and Reinforcement Learning (RL) principles. The protocol capitalizes on the large propagation delays in underwater acoustic channels to enhance network throughput. Deployed sensor nodes function as RL agents, autonomously learning optimal transmission ...
    • Self-Adaptive MAC and Routing Protocols for Mobile Underwater Acoustic ...

      Mobile underwater acoustic sensor networks have been widely used in marine data collection, pollution detection, disaster prediction, underwater target search and the other areas. Network protocols are aimed to enhance the reliability and the efficiency of the data transmission for these network applications. However, the mobility of underwater nodes introduces dynamic changes in the network ...

    • An Adaptive MAC Protocol for Underwater Acoustic Sensor Networks With ...

      The channel reservation mechanism is devised to reduce end-to-end delay and improve throughput for underwater acoustic sensor networks (UASNs) with dynamic load. Unfortunately, in dynamic-high-load UASNs, frequent channel reservation will lead to an increase in end-to-end delay and a decrease in throughput due to long propagation delay and collisions. To reduce end-to-end delay and improve ...

  2. semanticscholar.org

    Nov 21, 2023The simulation results show that the proposed protocol outperforms the existing RL-based UW-ALOHA-Q solution, achieving up to 50.7% improvement in channel utilization under the most challenging conditions, while sustaining a high level of fairness. In this paper, we propose a Medium Access Control (MAC) protocol for mobile Underwater Acoustic Sensor Networks (UWASNs), based on framed-ALOHA and ...
  3. researchgate.net

    Nov 21, 2023Request PDF | On Nov 21, 2023, Slavica Tomović and others published Adaptive Learning-driven MAC Protocol for Mobile Underwater Acoustic Sensor Networks | Find, read and cite all the research you ...
  4. ieeexplore.ieee.org

    Mobile underwater acoustic sensor networks have been widely used in marine data collection, pollution detection, disaster prediction, underwater target search and the other areas. Network protocols are aimed to enhance the reliability and the efficiency of the data transmission for these network applications. However, the mobility of underwater nodes introduces dynamic changes in the network ...
  5. Apr 17, 2023Underwater acoustic sensor networks (UASNs) are challenged by the dynamic nature of the underwater environment, large propagation delays, and global positioning system (GPS) signal unavailability, which make traditional medium access control (MAC) protocols less effective. These factors limit the channel utilization and performance of UASNs, making it difficult to achieve high data rates and ...
  6. sciencedirect.com

    Numerous MAC protocols that are adapted to different demand scenarios already exist and many classic MAC protocols have been optimized (Bi et al., 2015).However, as a channel with narrow bandwidth, high time-variance, multi-path, and high noise, the underwater acoustic channel is much more complex than the ground wireless electromagnetic wave channel, and many mature MAC protocols for land ...
  7. Jun 12, 2024A Multichannel MAC Protocol for Underwater Acoustic Sensor Networks WUWNet '14: Proceedings of the 9th International Conference on Underwater Networks & Systems Owing to long propagation delays and limited available bandwidth in underwater acoustics channels, it takes a long time to establish a node handshake that will decrease the channel ...
  8. ieeexplore.ieee.org

    Jan 31, 2024The channel reservation mechanism is devised to reduce end-to-end delay and improve throughput for underwater acoustic sensor networks (UASNs) with dynamic load. Unfortunately, in dynamic-high-load UASNs, frequent channel reservation will lead to an increase in end-to-end delay and a decrease in throughput due to long propagation delay and collisions. To reduce end-to-end delay and improve ...
  9. researchgate.net

    May 4, 2023Underwater acoustic sensor networks (UASNs) have attracted considerable attention over the past decade due to their potential to support a wide range of applications that can generate benefits ...
  10. ncbi.nlm.nih.gov

    National Center for Biotechnology Information

    https://ncbi.nlm.nih.gov › pmc › articles › PMC10181765

    3. Scenario and Network Model. We consider a network of N underwater sensor nodes that transmit data to a common sink node utilizing acoustic communication (Figure 1).This type of network topology is common for a variety of practical applications, such as long-term environmental monitoring, seismic monitoring in oil reservoirs, and the Internet of Underwater Things.

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