Energy Efficient User Association, Resource Allocation and Caching Deployment in Fog Radio Access Networks
Energy Efficient User Association, Resource Allocation and Caching Deployment in Fog Radio Access Networks
复制标题
雾无线接入网络中的节能用户关联、资源分配和缓存部署
DOI:
10.1109/tvt.2021.3131720
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发表时间:
2022-02
影响因子:
6.8
通讯作者:
Victor CM Leung
中科院分区:
文献类型:
--
作者:
Xiangnan Liu;Haijun Zhang;Keping Long;Arumugam Nallanathan;Victor CM Leung
The heterogeneous fog radio access networks (Fog-RAN), the integration of fog computing, and traditional heterogeneous radio access networks can be implemented through the next-generation wireless communication networks. However, most of the solutions are limited to the spectrum efficiency optimization, and cross-tier interference existing in the fog access points (F-APs) could affect the network performance seriously. In this paper, the user association, resource allocation (including bandwidth and power), and caching deployment are investigated in the heterogeneous Fog-RAN to consider energy efficiency and cross-tier interference mitigation. Specifically, the user association, resource allocation, and caching strategy are formulated as a non-convex optimization problem and then transformed into a convex problem, which can be solved by a proposed algorithm based on the concept of the alternating direction method of multipliers (ADMM). Then an ADMM-based algorithm is proposed to enhance the energy efficiency of the Fog-RAN. Compared with the current solutions, simulation results illustrate the proposed algorithm’s convergence and effectiveness.
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