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학술지 Implementing Practical DNN-Based Object Detection Offloading Decision for Maximizing Detection Performance of Mobile Edge Devices
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저자
윤기하, 김근용, 유학, 김성창, 김량수
발행일
202110
출처
IEEE Access, v.9, pp.140199-140211
ISSN
2169-3536
출판사
IEEE
DOI
https://dx.doi.org/10.1109/ACCESS.2021.3118731
협약과제
21ZK1100, 호남권 지역산업 기반 ICT 융합기술 고도화 지원사업, 이길행
초록
In the last decade, deep neural network (DNN)-based object detection technologies have received significant attention as a promising solution to implement a variety of image understanding and video analysis applications on mobile edge devices. However, the execution of computationally intensive DNN-based object detection workloads in mobile edge devices is insufficient in fulfilling the object detection requirements with high accuracy and low latency, owing to the limited computation capacity. In this paper, we implement and evaluate a DNN-based object detection offloading framework to improve the object detection performance of mobile edge devices by offloading computation-intensive workloads to a remote edge server. However, preliminary experimental results have shown that offloading all object detection workloads of mobile edge devices may lead to worse performance than executing the workloads locally. This degradation is obtained from the inefficient resource utilization in the edge computing architectures, both for the edge server and mobile edge devices. To resolve the aforementioned problem with degradation, we devise a device-aware DNN offloading decision algorithm that is aimed to maximize resource utilization in the edge computing architecture. The proposed algorithm decides whether or not to offload the object detection workloads of edge devices by considering their computing power and network bandwidth, and therefore maximizing their average object detection processing frames per second. Through various experiments conducted in a real-life wireless local area network (WLAN) environment, we verified the effectiveness of the proposed DNN-based object detection offloading framework.
키워드
Deep learning offloading, object detection, resource optimization, wireless edge computing
KSP 제안 키워드
Computing architectures, Computing power, Decision algorithm, Deep neural network(DNN), Edge devices, Frames per second(FPS), High accuracy, Local Area Network(LAN), Low latency, Network bandwidth, Object detection
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