Social-aware cooperative caching in fog radio access networks
Fan, Baotian; Jiang, Yanxiang; Zheng, Fu-Chun; Bennis, Mehdi; You, Xiaohu (2022-08-11)
B. Fan, Y. Jiang, F. -C. Zheng, M. Bennis and X. You, "Social-aware Cooperative Caching in Fog Radio Access Networks," ICC 2022 - IEEE International Conference on Communications, Seoul, Korea, Republic of, 2022, pp. 1672-1677, doi: 10.1109/ICC45855.2022.9839236
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https://urn.fi/URN:NBN:fi-fe2023021026687
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Abstract
In this paper, the cooperative caching problem in fog radio access networks (F-RANs) is investigated to jointly optimize the transmission delay and energy consumption. Exploiting the potential social relationships among fog access points (F-APs), we firstly propose a clustering scheme based on hedonic coalition game (HCG) to improve the potential cooperation gain. Then, considering that the optimization problem is non-deterministic polynomial hard (NP-hard), we further propose an improved firefly algorithm (FA) based cooperative caching scheme, which utilizes a mutation strategy based on local content popularity to avoid pre-mature convergence. Simulation results show that our proposed scheme can effectively reduce the content transmission delay and energy consumption in comparison with the baselines.
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