https://scholars.lib.ntu.edu.tw/handle/123456789/558989
標題: | Green Fog Offloading Strategy for Heterogeneous Wireless Edge Networks | 作者: | Hsu, Y.-L. Wei, H.-Y. Bennis, M. HUNG-YU WEI |
關鍵字: | Fog node; Green communication; MEC | 公開日期: | 2019 | 來源出版物: | 2018 IEEE Globecom Workshops, GC Wkshps 2018 - Proceedings | 摘要: | Multi-access/Mobile Edge Computing (MEC) and fog computing are promising techniques to satisfy low latency requirements for emerging next generation applications. Moving computation entities closer to a user could reduce the overall serving latency. In terms of green communications, given the latency constraint, how to minimize the power consumption at the user equipment (UE) and the edge node (EN) sides is important. Considering several edge nodes, partially offloading a user's task to one or more edge nodes is key. In this paper, a multi-node partial task offloading MEC scenario is discussed, in which UEs locally compute the task and share the remainder with other edge nodes. In addition, a green task distribution algorithm which minimizes the system power consumption is proposed, considering queueing, transmitting and computing delay. The simulation results show that the proposed algorithm minimizes the power consumption while meeting the latency requirements, and the power saving efficiency outperforms a binary offloading strategy. Moreover, the coupling effects between the latency requirements, offloading signal strength within the edge nodes, computation capability of edge nodes and the number of subcarriers used to transmit the offloading task are discussed. © 2018 IEEE. |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85063513289&partnerID=40&md5=f13e67da34036d343abce2c335111968 https://scholars.lib.ntu.edu.tw/handle/123456789/558989 |
DOI: | 10.1109/GLOCOMW.2018.8644285 | SDG/關鍵字: | Electric power utilization; Energy efficiency; Fog; Green computing; Coupling effect; Green communications; Latency constraints; Next-Generation Applications; Signal strengths; Task distribution; Task offloading; User equipments; Fog computing |
顯示於: | 電機工程學系 |
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