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<p>Underwater acoustic wireless communication has gained significant research attention in recent years due to its unique challenges compared to terrestrial wireless systems. The high costs of deploying and maintaining wired communication infrastructures further emphasize the need for robust wireless protocols adapted to underwater environments. The Medium Access Control (MAC) protocol is essential for coordinating access to the shared channel, ensuring efficient and reliable communication among nodes in underwater wireless networks. This study investigates the Inter-layer Scheduled MAC (ILS-MAC) protocol and demonstrates how the use of Stochastic Network Calculus (SNC) can significantly enhance performances. ILS-MAC coordinates scheduled handshaking within defined process cycles during communication, enhancing timing accuracy and synchronization across adjacent network layers. The protocol’s performance is evaluated using key metrics such as delay, frame delivery ratio, and energy consumption. To validate the accuracy of the proposed SNC-based ILS-MAC model, both discrete event simulations and analytical assessments were conducted. Results show a notable performance improvement of 3% to 5% compared to existing protocols including S-Aloha, UWAN-MAC and HSR.</p>

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Exploring stochastic network calculus in the modeling of inter-layer scheduled MAC protocols for underwater acoustic wireless networks

  • 期刊论文

  • 发表日期：

    2025年5月31日

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  • M. Saravanan,
  • Rajeev Sukumaran

摘要

Underwater acoustic wireless communication has gained significant research attention in recent years due to its unique challenges compared to terrestrial wireless systems. The high costs of deploying and maintaining wired communication infrastructures further emphasize the need for robust wireless protocols adapted to underwater environments. The Medium Access Control (MAC) protocol is essential for coordinating access to the shared channel, ensuring efficient and reliable communication among nodes in underwater wireless networks. This study investigates the Inter-layer Scheduled MAC (ILS-MAC) protocol and demonstrates how the use of Stochastic Network Calculus (SNC) can significantly enhance performances. ILS-MAC coordinates scheduled handshaking within defined process cycles during communication, enhancing timing accuracy and synchronization across adjacent network layers. The protocol’s performance is evaluated using key metrics such as delay, frame delivery ratio, and energy consumption. To validate the accuracy of the proposed SNC-based ILS-MAC model, both discrete event simulations and analytical assessments were conducted. Results show a notable performance improvement of 3% to 5% compared to existing protocols including S-Aloha, UWAN-MAC and HSR.