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Learning-Based Sensing and Computing Decision for Data Freshness in Edge Computing-Enabled Networks
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DOI：10.1109/TWC.2024.3381995.png)
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摘要
En 中文
As the demand on artificial intelligence (AI)-based applications increases, the freshness of sensed data becomes crucial in the wireless sensor networks. Since those applications require a large amount of computation for processing the sensed data, it is essential to offload the computation load to the edge computing (EC) server. In this paper, we propose the sensing and computing decision (SCD) algorithms for data freshness in the EC-enabled wireless sensor networks. We define the $\eta $ -coverage probability to show the probability of maintaining fresh data for more than $\eta $ ratio of the network, where the spatial-temporal correlation of information is considered. We then propose the probability-based SCD for the single pre-charged sensor case with providing the optimal point after deriving the $\eta $ -coverage probability. We also propose the reinforcement learning (RL)-based SCD by training the SCD policy of sensors for both the single pre-charged and multiple energy harvesting (EH) sensor cases, to make a real-time decision based on its observation. Our simulation results verify the performance of the proposed algorithms under various environment settings, and show that the RL-based SCD algorithm achieves higher performance compared to baseline algorithms for both the single pre-charged sensor and multiple EH sensor cases.
Keyword:
Sensors
Wireless sensor networks
Data integrity
Wireless communication
Servers
Correlation
Simulation
edge computing
sensor activation
age of information
reinforcement learning
期刊
IF:
10.7
论文数:
1.3W
被引数:
5.3W
机构
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