Data Caching Optimization in the Edge Computing Environment
Article
Article Title | Data Caching Optimization in the Edge Computing Environment |
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ERA Journal ID | 36548 |
Article Category | Article |
Authors | Liu, Ying (Author), He, Qiang (Author), Zheng, Dequan (Author), Xia, Xiaoyu (Author), Chen, Feifei (Author) and Zhang, Bin (Author) |
Journal Title | IEEE Transactions on Services Computing |
Journal Citation | 15 (4), pp. 2074-2085 |
Number of Pages | 12 |
Year | 2022 |
Publisher | IEEE (Institute of Electrical and Electronics Engineers) |
Place of Publication | United States |
ISSN | 1939-1374 |
Digital Object Identifier (DOI) | https://doi.org/10.1109/TSC.2020.3032724 |
Web Address (URL) | https://ieeexplore.ieee.org/document/9234716 |
Abstract | With the rapid increase in the use of mobile devices in people’s daily lives, mobile data traffic is exploding in recent years. In the edge computing environment where edge servers are deployed in close proximity to mobile users, caching popular data on edge servers can ensure mobile users’ low-latency access to those data and reduce the data traffic between mobile users and the centralized cloud. Existing studies consider the data caching problem with a focus on the reduction of network delay and the improvement of mobile devices’ energy efficiency. In this article, we tackle this data caching problem in the edge computing environment from a service provider’s perspective with the aim to maximize its data caching revenue. This problem is challenging because there is a trade-off between the benefit produced and the cost incurred by caching data on edge servers. In the meantime, the constraint for data access latency must also be fulfilled. In this article, we formulate the data caching problem in the edge computing environment as an integer programming (IP) problem and prove its NP-completeness. To solve this problem effectively and efficiently in large-scale scenarios, we propose an approximation approach to find near-optimal solutions. Extensive experiments are conducted on a widely-used real-world dataset to evaluate our approaches. |
Keywords | data caching; data popularity; Edge computing; Integer Problem (IP); near-optimal algorithm; optimization |
ANZSRC Field of Research 2020 | 460612. Service oriented computing |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Northeastern University, China |
Swinburne University of Technology | |
Deakin University | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7qq8/data-caching-optimization-in-the-edge-computing-environment
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