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    W-GUN: Whale Optimization for Energy and Delay centric Green Underwater Networks

    Rathore, Rajkumar Singh, Sangwan, Suman, Mazumdar, Sukriti, Kaiwartya, Omprakash, Adhikari, Kabita, Kharel, Rupak ORCID logoORCID: https://orcid.org/0000-0002-8632-7439 and Song, Houbing (2020) W-GUN: Whale Optimization for Energy and Delay centric Green Underwater Networks. Sensors, 20 (5).

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    Underwater Sensor Networks (UWSNs) has witnessed significant R&D attention in both academia and industries due to its growing application domain such as border security, freight via sea or river, natural petroleum production, etc. Considering the deep underwater oriented access constraints, energy centric communication for lifetime maximization of tiny sensor nodes in UWSNs is one of the key research themes in this domain. Existing literature on green UWSNs are majorly adapted from the existing techniques in traditional wireless sensor network without giving much attention to the realistic impact of underwater network environments resulting in degraded performance. Towards this end, this paper presents an adapted whale optimization algorithm-based energy and delay centric green UWSNs framework (W-GUN). It focuses on exploiting dynamic underwater network characteristics by effectively utilizing underwater whale centric optimization in relay node selection. Firstly, an underwater relay- node optimization model is mathematically derived focusing on whale and wolf optimization algorithms for incorporating realistic underwater characteristics. Secondly, the optimization model is used to develop an adapted whale and grey wolf optimization algorithm. Thirdly, a complete work-flow of the W-GUN framework is presented with the optimization flowchart. The comparative performance evaluation attests the benefits of the proposed framework as compared to the state-of-the-art techniques considering various metrics related to underwater network environments.

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