Joint Design of Beamforming and Edge Caching in Fog Radio Access Networks

被引：0
|
作者：
Lv, Wenjing [1 ]
Wang, Rui [1 ,2 ]
Wu, Jun [3 ,4 ]
Fang, Zhijun [5 ]
Cheng, Songlin [6 ]
机构：
[1] Tongji Univ, Coll Elect & Informat Engn, Shanghai 201804, Peoples R China
[2] Tongji Univ, Shanghai Inst Intelligent Sci & Technol, Shanghai 201804, Peoples R China
[3] Fudan Univ, Sch Comp Sci, Shanghai, Peoples R China
[4] Peng Cheng Lab, Shenzhen, Peoples R China
[5] Shanghai Univ Engn Sci, Coll Elect & Elect Engn, Shanghai 201620, Peoples R China
[6] Shanghai Dianji Univ, Dept Arts & Sci, Shanghai 201306, Peoples R China
来源：
SECURITY AND COMMUNICATION NETWORKS | 2021年 / 2021卷
关键词：
D O I：
10.1155/2021/1935453
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we study a novel transmission framework based on statistical channel state information (SCSI) by incorporating edge caching and beamforming in a fog radio access network (F-RAN) architecture. By optimizing the statistical beamforming and edge caching, we formulate a comprehensive nonconvex optimization problem to minimize the backhaul cost subject to the BS transmission power, limited caching capacity, and quality-of-service (QoS) constraints. By approximating the problem using the l(0) -norm, Taylor series expansion, and other processing techniques, we provide a tailored second-order cone programming (SOCP) algorithm for the unicast transmission scenario and a successive linear approximation (SLA) algorithm for the joint unicast and multicast transmission scenario. This is the first attempt at the joint design of statistical beamforming and edge caching based on SCSI under the F-RAN architecture.
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页数：8
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