Cache Hit Ratio Maximization in Device-to-Device Communications Overlaying Cellular Networks

被引：0
|
作者：
Zhong, Liang [1 ]
Zheng, Xueqian [2 ]
Liu, Yong [1 ]
Wang, Mengting [1 ]
Cao, Yang [3 ]
机构：
[1] China Univ Geosci, Sch Mech Engn & Elect Informat, Dept Elect & Informat Engn, Wuhan, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan, Peoples R China
[3] Huazhong Univ Sci & Technol, Sch Elect Informat & Commun, Wuhan, Peoples R China
来源：
CHINA COMMUNICATIONS | 2020年 / 17卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Cache hit ratio; content placement; device-to-device; multicast; DELIVERY;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This paper investigates the content placement problem to maximize the cache hit ratio in device-to-device (D2D) communications overlaying cellular networks. We consider offloading contents by users themselves, D2D communications and multicast, and we analyze the relationship between these offloading methods and the cache hit ratio. Based on this relationship, we formulate the content placement optimization as a cache hit ratio maximization problem, and propose a heuristic algorithm to solve it. Numerical results demonstrate that the proposed scheme can outperform existing schemes in terms of the cache hit ratio.
引用
收藏
页码：232 / 238
页数：7
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