Awakening the Cloud Within: Energy-Aware Task Scheduling on Edge IoT Devices
2018 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops)(2018)
摘要
Mobile and IoT devices are becoming increasingly capable computing platforms that are often underutilized. In this paper, we propose a system that leverages the idle compute cycles in a group of heterogeneous mobile and IoT devices that can be clustered to form an edge micro-cloud. At the heart of this system, we formulate a task assignment and scheduling problem that strives to maximize the computational throughput of the constructed micro-cloud while maintaining the energy consumption below an operator specified threshold. Due to the NP-Completeness of this scheduling problem, we design a set of heuristics to solve this problem. We implement a prototype of our system and use it to evaluate its performance and assess its efficiency. Our results demonstrate the system's ability to utilize the available compute capacity of a group of mobile and IoT devices while adhering to pre-specified energy constraints. Compared to other schedulers, our scheduler achieves 10% to 40% improvement in terms of latency minimization, and up to 30% improvement in terms of computational throughput.
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关键词
energy-aware task scheduling,edge IoT devices,heterogeneous mobile devices,edge microcloud,task assignment,scheduling problem,energy consumption,pre-specified energy constraints
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