🤖 AI Summary
This study addresses the computation task allocation problem in the three-tier architecture of the Internet of Mirrors (IoM) by constructing the first physical IoM testbed and empirically evaluating four task placement strategies under real-world Wi-Fi and 5G network conditions. The work systematically characterizes, for the first time, the trade-off space between computation and communication in IoM, revealing that no single strategy is universally optimal; instead, effective placement must dynamically adapt to network conditions, node proximity, and concurrent workload. Experimental results demonstrate that offloading classification tasks to higher-tier nodes significantly reduces end-to-end latency and terminal-side computational load, though this benefit is constrained by payload size and hop count. These findings provide critical design insights for resource scheduling in IoM systems.
📝 Abstract
The Internet of Mirrors (IoM) is an emerging IoT ecosystem of interconnected smart mirrors designed to deliver personalised services across a three-tier node hierarchy spanning consumer, professional, and hub nodes. Determining where computation should reside within this hierarchy is a critical design challenge, as placement decisions directly affect end-to-end latency, resource utilisation, and user experience. This paper presents the first physical IoM testbed study, evaluating four computational placement strategies across the IoM tier hierarchy under real Wi-Fi and 5G network conditions. Results show that offloading classification to higher-tier nodes substantially reduces latency and consumer resource load, but introduces network overhead that scales with payload size and hop count. No single strategy is universally optimal: the best choice depends on available network, node proximity, and concurrent user load. These findings empirically characterise the computation-communication trade-off space of the IoM and motivate the need for intelligent, adaptive task placement responsive to application requirements and live ecosystem conditions.