AoI in Context-Aware Hybrid Radio-Optical IoT Networks

• URL: http://arxiv.org/abs/2412.12914v2
• Date: Tue, 14 Jan 2025 19:15:40 GMT
• Title: AoI in Context-Aware Hybrid Radio-Optical IoT Networks
• Authors: Aymen Hamrouni, Sofie Pollin, Hazem Sallouha,
• Abstract summary: We study hybrid IoT networks that employ Optical Communication (OC) as a reinforcement medium to Radio Frequency (RF) We adopt a multi-objective optimization strategy to balance the collection of the throughput with the minimization of energy and the frequency of switching between technologies. Simulation results show that the OC supplementary integration alongside enhances the network's overall performances and significantly reduces the Mean AoI and Peak AoI.
• Score: 8.467370216900107
• License:
• Abstract: With the surge in IoT devices ranging from wearables to smart homes, prompt transmission is crucial. The Age of Information (AoI) emerges as a critical metric in this context, representing the freshness of the information transmitted across the network. This paper studies hybrid IoT networks that employ Optical Communication (OC) as a reinforcement medium to Radio Frequency (RF). We formulate a non-linear convex optimization that adopts a multi-objective optimization strategy to dynamically schedule the communication between devices and select their corresponding communication technology, aiming to balance the maximization of network throughput with the minimization of energy usage and the frequency of switching between technologies. To mitigate the impact of dominant sub-objectives and their scale disparity, the designed approach employs a regularization method that approximates adequate sub-objective scaling weights. Simulation results show that the OC supplementary integration alongside RF enhances the network's overall performances and significantly reduces the Mean AoI and Peak AoI, allowing the collection of the freshest possible data using the best available communication technology.

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