Fairness-Aware Computation Offloading With Trajectory Optimization and Phase-Shift Design in RIS-Assisted Multi-UAV MEC Network

Wang, Shumo; Song, Xiaoqin; Song, Tiecheng; Yang, Yang

doi:10.1109/jiot.2024.3371395

IEEE Internet Things J.

2024

DOI: 10.1109/jiot.2024.3371395

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Fairness-Aware Computation Offloading With Trajectory Optimization and Phase-Shift Design in RIS-Assisted Multi-UAV MEC Network

Shumo Wang,

Xiaoqin Song,

Tiecheng Song

et al.

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2024

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Cited by 2 publications

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Towards Energy-Efficiency: Integrating DRL and ze-RIS for Task Offloading in UAV-MEC Environments

Tariq,

Wang,

Memon

et al. 2024

IEEE Access

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Unmanned aerial vehicles (UAVs) play an important role within mobile edge computing (MEC) networks in improving communications for ground users during emergency situations. However, sustaining high-quality service for extended periods is challenging because of constraints on battery capacity and computing capabilities of UAVs. To address this issue, we leverage zero-energy reconfigurable intelligent surfaces (ze-RIS) within UAV-MEC networks and introduce a comprehensive strategy that combines task offloading and resource sharing. A deep reinforcement learning (DRL) driven energy efficient task offloading (DEETO) scheme is presented. The primary objective is to minimize UAV energy ingestion. DEETO aims to enhance task offloading decision mechanism, computing and communication resource allocation, while adopting hybrid task offloading mechanism with intelligent RIS phase-shift control. We begin by modeling it as a DRL problem, structuring it as a Markov decision process (MDP), and subsequently resolving it effectively through the use of the advantage actor-critic (A2C) algorithm. Our simulation results highlight the superiority of the DEETO scheme compared to alternative approaches. DEETO excelled by achieving a notable energy savings of 16.98% from the allocated energy resources, coupled with the highest task turnover rate of 94.12%, all achieved within a shorter learning time frames per second (TFPS) and yielding higher rewards.

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Towards Energy-Efficiency: Integrating DRL and ze-RIS for Task Offloading in UAV-MEC Environments

Tariq,

Wang,

Memon

et al. 2024

IEEE Access

View full text Add to dashboard Cite

show abstract

RIS-Enabled Integrated Sensing, Computing, and Communication for Internet of Robotic Things

Shu,

Ota,

Dong

2024

IEEE Internet Things J.

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Fairness-Aware Computation Offloading With Trajectory Optimization and Phase-Shift Design in RIS-Assisted Multi-UAV MEC Network

Cited by 2 publications

References 38 publications

Towards Energy-Efficiency: Integrating DRL and ze-RIS for Task Offloading in UAV-MEC Environments

Towards Energy-Efficiency: Integrating DRL and ze-RIS for Task Offloading in UAV-MEC Environments

RIS-Enabled Integrated Sensing, Computing, and Communication for Internet of Robotic Things

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