Performance characterization of two-way multi-hop underwater networks in turbulent channels [Invited]

Xing, Fangyuan; Yin, Hongxi; Jing, Lianyou

doi:10.3788/col201917.100005

Cited by 15 publications

(5 citation statements)

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“…In [18], an Internet of Underwater Things (IoUT) collaborative system based on hybrid decoder amplification (HDAF) strategy of converged UOWC channel is studied over the aggregated lognormal fading channel. [19] investigates the performance of twoway multi-hop UOWC system with the decoder-and-forward (DF) relay. The influence of the relay on the maximum communication distance of the UOWC system is studied in [20].…”

Section: Introductionmentioning

confidence: 99%

Dual-Hop Underwater Optical Wireless Communication System With Simultaneous Lightwave Information and Power Transfer

Zou

Yang

2021

IEEE Photonics J.

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The most significant challenge of underwater optical wireless communication (UOWC) system is to overcome its limited coverage. To expand the achievable communication range, we investigate the performance of the dual-hop UOWC system with simultaneous lightwave information and power transfer (SLIPT). The time splitting (TS) method is adopted for wireless power transfer in the proposed system, where the information and energy are transmitted in different phases. A suitable transmission strategy is designed for the model without additional power supply, which contains three phases, i.e. information transmission, energy transmission, and forwarding process. The expressions of the average bit error rate (BER) at the target node and the energy harvested by the relay node are derived over underwater attenuation channel. Then, the effects of the TS factor and the distances on the system performance are investigated in two sub-problems, which minimize the average BER while satisfying the energy harvesting and transmitting rate constraints. Numerical results indicate the performance improvement by adopting the relay node with SLIPT.

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Section: Introductionmentioning

confidence: 99%

Dual-Hop Underwater Optical Wireless Communication System With Simultaneous Lightwave Information and Power Transfer

Zou

Yang

2021

IEEE Photonics J.

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“…UOWC is faced with such problems as limited communications range, large path loss [81]. RAT can be used to overcome these disadvantages.…”

Section: Relay Forms In Underwater Wireless Communicationsmentioning

confidence: 99%

“…There are two methods about relay-assisted technology: one-way relay system and two-way relay system. The two-way system is that the transmission of signals from the source to the destination is unidirectional, which may cause the loss of spectral efficiency [81]. Unlike the former, two-way relay system transmit the signals from the source to the destination is bidirectional, which improve spectrum utilization rate [81].…”

Section: B Relay Selection In Optical Wireless Communicationsmentioning

confidence: 99%

“…Two-way multi-hop of DF relay system modeling compared with the one-way multi-hop system and the two-way dual-hop system [81]. The results show that the performance of the two-way multi-hop system is improved obviously.…”

Section: ) Two-way Relay System In Oowcmentioning

confidence: 99%

“…Both of the above three conditions are one-way relay, which may cause the loss of spectral efficiency [81]. It considers the effect of absorption, scattering and ocean turbulence, based on two-way multi-hop of DF relay system modeling [81].…”

Section: ) Two-way Relay System In Uowcmentioning

confidence: 99%

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Relay-Assisted Technology in Optical Wireless Communications: A Survey

et al. 2020

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When the distance between the source and the target is long, the signal will be affected by atmospheric turbulence, weather conditions and obstacles, which cannot support the information transmission. One of the existing solutions is to use relay-assisted technology (RAT). It makes the communications between the source and the destination possible under better channel conditions by setting up relay between the source and the destination. There are few comprehensive articles about relay-assisted technology in OWC. To fill this gap, this paper introduces the RAT of indoor optical wireless communications (IOWC), outdoor optical wireless communications (OOWC) and underwater optical wireless communications (UOWC) in different application scenarios, which has a better effect than direct communication between source and destination. The relay protocols, channel models, modulation techniques under three relay modes are reviewed. Finally, challenges of RAT in OWC are put forward and potential solutions are also given.

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Joint power allocation for multiple nodes in serial relaying networks over underwater wireless optical channels

Xing,

Tan,

Wang

et al. 2025

Computer Networks

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Performance characterization of two-way multi-hop underwater networks in turbulent channels [Invited]

Cited by 15 publications

References 0 publications

Dual-Hop Underwater Optical Wireless Communication System With Simultaneous Lightwave Information and Power Transfer

Dual-Hop Underwater Optical Wireless Communication System With Simultaneous Lightwave Information and Power Transfer

Relay-Assisted Technology in Optical Wireless Communications: A Survey

Joint power allocation for multiple nodes in serial relaying networks over underwater wireless optical channels

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