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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국정보처리학회 JIPS(Journal of Information Processing Systems) JIPS(Journal of Information Processing Systems) 제15권 제2호
발행연도
2019.1
수록면
440 - 448 (9page)

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The Internet of Things (IoT) is one of the main enablers for situation awareness needed in accomplishing smartcities. IoT devices, especially for monitoring purposes, have stringent timing requirements which may not bemet by cloud computing. This deficiency of cloud computing can be overcome by fog computing for which fognodes are placed close to IoT devices. Because of low capabilities of fog nodes compared to cloud data centers,fog nodes may not be deployed with all the services required by IoT devices. Thus, in this article, we focus onthe issue of fog service placement and present the recent research trends in this issue. Most of the literature onfog service placement deals with determining an appropriate fog node satisfying the various requirements likedelay from the perspective of one or more service requests. In this article, we aim to effectively place fog servicesin accordance with the pre-obtained service demands, which may have been collected during the prior timeinterval, instead of on-demand service placement for one or more service requests. The concept of the logicalfog network is newly presented for the sake of the scalability of fog service placement in a large-scale smart city. The logical fog network is formed in a tree topology rooted at the cloud data center. Based on the logical fognetwork, a service placement approach is proposed so that services can be placed on fog nodes in a resourceeffectiveway.

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