Modeling and Optimization of Mobility-Aware Dynamic Caching With Time-Varying Content Popularity

被引：5
|
作者：
Deng, Tao [1 ]
Fan, Pingzhi [1 ]
Yuan, Di [2 ]
机构：
[1] Southwest Jiaotong Univ, Sch Informat Sci & Technol, Chengdu 610031, Sichuan, Peoples R China
[2] Uppsala Univ, Dept Informat Technol, S-75105 Uppsala, Sweden
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2020年 / 69卷 / 01期
基金：
瑞典研究理事会;
关键词：
Dynamic caching; mobility-aware; optimization;
D O I：
10.1109/TVT.2019.2951737
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A mobility-aware dynamic caching optimization problem (MDCP) is modelled for optimal caching when the contents' popularity may vary over time. The NP-hardness of MDCP is proved. For the problem's solution, first, by providing a reformulation, the optimum of MDCP can be computed in up to medium-scale system scenarios. In addition, a time-efficient algorithm is developed for large-scale scenarios. The results of performance evaluation are provided.
引用
收藏
页码：1157 / 1162
页数：6
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