Abstract
In the scenario with many small base stations (SBSs) deployed, edge caching technology could bring contents closer to users by caching files at SBSs. Considering these SBSs with limited storage capacity, how to effectively cache files is a difficult and interesting problem. Many factors should be considered, such as the popularity of files, user download delay and average hit rate. In this paper, we investigate this problem and propose a minimizing user download delay caching (MUDDC) algorithm. It decides which files should be cached and where to cache them for reducing download delay. There is a conflict between hit rate and download delay with the limited SBS storage capacity. We target the average user download delay and model an optimization problem with the constraint of average hit rate and find the optimal solution. The simulation results show that the system performance is improved.
T. Wu—This work is supported by National Natural Science Foundation of China under grant 61671088 and National Science and Technology Major Project of the Ministry of Science and Technology of China under grant 2016ZX03001017.
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References
Wang, S., Zhang, X., Zhang, Y., Wang, L., Yang, J., Wang, W.: A survey on mobile edge networks: convergence of computing, caching and communications. IEEE Access 5, 6757–6779 (2017)
Ghosh, A., Mangalvedhe, N., Ratasuk, R., Mondal, B., Cudak, M., Visotsky, E., Thomas, T.A., Andrews, J.G., Xia, P., Jo, H.S., Dhillon, H.S., Novlan, T.D.: Heterogeneous cellular networks: from theory to practice. IEEE Commun. Mag. 50(6), 54–64 (2012)
Yang, C., Yao, Y., Chen, Z., Xia, B.: Analysis on cache-enabled wireless heterogeneous networks. IEEE Trans. Wirel. Commun. 15(1), 131–145 (2016)
Gabry, F., Bioglio, V., Land, I.: On energy-efficient edge caching in heterogeneous networks. IEEE J. Sel. Areas Commun. 34(12), 3288–3298 (2016)
Wang, X., Leng, S., Yang, K.: Social-aware edge caching in fog radio access networks. IEEE Access 5, 8492–8501 (2017)
Wang, S., Zhang, X., Yang, K., Wang, L., Wang, W.: Distributed edge caching scheme considering the tradeoff between the diversity and redundancy of cached content. In: 2015 IEEE/CIC International Conference on Communications in China (ICCC), pp. 1–5, November 2015
Wang, Y., Tao, X., Zhang, X., Mao, G.: Joint caching placement and user association for minimizing user download delay. IEEE Access 4, 8625–8633 (2016)
Su, Z., Xu, Q., Hou, F., Yang, Q., Qi, Q.: Edge caching for layered video contents in mobile social networks. IEEE Trans. Multimedia 19(10), 2210–2221 (2017)
Jia, C., Lim, T.J.: Resource partitioning and user association with sleep-mode base stations in heterogeneous cellular networks. IEEE Trans. Wirel. Commun. 14(7), 3780–3793 (2015)
Zhang, H., Wang, Y., Ji, H.: Resource optimization-based interference management for hybrid self-organized small-cell network. IEEE Trans. Veh. Technol. 65(2), 936–946 (2016)
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© 2018 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Wu, T., Li, X., Ji, H., Zhang, H. (2018). An Edge Caching Strategy for Minimizing User Download Delay. In: Wang, L., Qiu, T., Zhao, W. (eds) Quality, Reliability, Security and Robustness in Heterogeneous Systems. QShine 2017. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 234. Springer, Cham. https://doi.org/10.1007/978-3-319-78078-8_13
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DOI: https://doi.org/10.1007/978-3-319-78078-8_13
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