Fog/Edge Computing Service Provision with Function Module Sharing Enabled: A Case Study on Wearable Devices

• Main Authors: Hsin-Peng Lin, 林心鵬
• Other Authors: Ai-Chun Pang
• Format: Others
• Language: en_US
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/g8747c

博士 === 國立臺灣大學 === 資訊工程學研究所 === 107 === With the rapid development of sensing and communication capacities, Internet of Things (IoT) technology has been changing our daily life. However, IoT devices generally require a powerful local-hub, most are smartphone or computer, to replenish processing and storage capacities for advanced functionalities. Sometime it may be inconvenient to carry a bulky local-hub; thus, many IoT devices are equipped with Wi-Fi or 3G/LTE interface, enabling them to exchange data with local-hub remotely though the Internet. However, these alternative solutions result in long response time and more power consumption. To overcome those restrictions of local-hub solutions, we present a virtual local-hub (VLH) platform, which utilizes network equipment nearby (e.g., Wi-Fi hotspot or cellular base-station) as the local-hub. In this dissertation, we first take wearable devices as the example of IoT service and describe the operating mechanism of a local-hub, then give an overview of the VLH system. After that, we depict the system design of the VLH including container-based virtualization and microservice architecture which enables remote function module sharing on the edge-computing environment. We also propose an algorithm to deal with function module allocation and sharing decisions. Finally, we verify the effectiveness and practicality of VLH via simulations under large-scale network setting and we also build a prototype system as the realization of VLH to demonstrate its feasibility.