@inproceedings{0096b937b8d24748a15debdebfc97395,
title = "Analysis and optimization of random caching in mmwave heterogeneous networks",
abstract = "In this paper, we investigate the optimal caching policy in a K-tier millimeter wave (mmWave) cache- enabled heterogeneous network. In order to mitigate interferences, we incorporate base station (BS) idling into our analysis. Under the random caching framework, we derive the association probability for each tier as well as the successful transmission probability (STP) by utilizing stochastic geometry and taking the blockage effect into account. In addition, we adopt the gradient projection method to obtain the locally optimal caching probabilities and propose a two-stage scheme to obtain the globally optimal caching probabilities under the special case where the LOS ranges for K tiers are sufficiently large. Numerical results demonstrate the superiority of the proposed method over the conventional caching strategies such as Most Popular Content (MPC) and Uniform Caching (UC) schemes.",
keywords = "Caching Policy, Heterogeneous Network, Millimeter Wave, User Association",
author = "Le Yang and Zheng, \{Fu Chun\} and Wanli Wen and Shi Jin",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 90th IEEE Vehicular Technology Conference, VTC 2019 Fall ; Conference date: 22-09-2019 Through 25-09-2019",
year = "2019",
month = sep,
doi = "10.1109/VTCFall.2019.8891211",
language = "英语",
series = "IEEE Vehicular Technology Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2019 IEEE 90th Vehicular Technology Conference, VTC 2019 Fall - Proceedings",
address = "美国",
}