Lightwave Power Transfer in Full-Duplex NOMA Underwater Optical Wireless Communication Systems

Palitharathna, Kapila W. S.; Suraweera, Himal A.; Godaliyadda, G. M. R. I.; Herath, Vijitha; Ding, Zhiguo

doi:10.1109/lcomm.2021.3140117

Cited by 13 publications

(3 citation statements)

References 16 publications

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“…To this end, we first fix A and optimize the problem over 𝜏. Therefore, for a given 0 ≤ A ≤ (I H − I L )∕2, the optimization problem in (14) can be reduced to…”

Section: Problem Statementmentioning

confidence: 99%

“…In Reference 15, authors investigate a dual hop full‐duplex (FD) and half‐duplex (HD) setup where they optimize the instantaneous time‐splitting parameter such that the uplink information rate is maximized. In Reference 14, instantaneous achievable rate maximization with SLIPT based full‐duplex cooperative UOWC NOMA setup was considered and effect of transmitter‐receiver misalignment was also investigated. Moreover, various SLIPT based mixed indoor OWC‐RF setup also known as visible light communication (VLC)‐RF SLIPT based setup are also considered (see References 16‐19 and references therein).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, multi-hop UOWC and mixed RF-UOWC setups are also studied in the literature as they extend the communication coverage and improves overall system performance. [10][11][12][13][14][15] In Reference 10, authors considered a dual-hop UOWC system and determine optimal relay placement to minimize the bit error rate (BER) and extend the results to multihop. However, they consider only path loss and ignore the effect of turbulence and they do not consider SLIPT at the relay.…”

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confidence: 99%

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Energy‐efficient UOWC‐RF systems with SLIPT

Agarwal,

Singh

2023

Trans Emerging Tel Tech

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This letter investigates a two‐hop underwater optical wireless communication‐radio frequency setup consisting of an autonomous underwater vehicle (AUV), a communication buoy, and an onshore data center (ODC). The information transmission between AUV and ODC occurs in two phases. In the first phase, the AUV communicates to the buoy over the optical wireless link. The buoy harvests the energy by using simultaneous lightwave information and power transfer and also decodes the information. In the subsequent phase, the buoy transmits the decoded information to the ODC over an RF link by utilizing the harvested energy at the first phase. A joint optimization problem is proposed to minimize the total optical energy consumption at the AUV by optimally selecting the DC‐bias and the time allocated to the first and second phases subject to the minimum required end‐to‐end rate. Due to the non‐convexity of the original problem, an alternative approach is used to make it convex. For certain system parameters, our results show a significant energy savings of J at the required rate of 2 bits per channel use.

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“…To this end, we first fix A and optimize the problem over 𝜏. Therefore, for a given 0 ≤ A ≤ (I H − I L )∕2, the optimization problem in (14) can be reduced to…”

Section: Problem Statementmentioning

confidence: 99%