Game Theoretical Secure Caching Scheme in Multi-homing Edge Computing-enabled Heterogeneous Networks
Game Theoretical Secure Caching Scheme in Multi-homing Edge Computing-enabled Heterogeneous Networks
复制标题
支持多宿主边缘计算的异构网络中的博弈论安全缓存方案
DOI：
10.1109/jiot.2018.2876417
复制
发表时间：
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影响因子：
10.6
通讯作者：
Zhang Kuan
中科院分区：
文献类型：
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作者：
Xu Qichao;Su Zhou;Zheng Qinghua;Luo Minnan;Dong Bo;Zhang Kuan
在支持边缘计算的小型蜂窝基站 (ECSBS) 上缓存内容已成为减轻宏蜂窝基站负担和卸载移动用户数据的一项有前景的技术。然而，由于 ECSBS 可能是恶意的，因此提供安全的缓存方案成为一个挑战。在本文中，我们为多宿主用户提出了一种异构网络中的新型安全缓存方案。首先，为了提供缓存内容，设计了信任机制来验证每个ECSBS的可靠性。然后，为了保证缓存内容的完整性并保护移动用户的隐私，提出了一种基于中国剩余定理的隐私保护协议。接下来，我们通过 Stackelberg 博弈研究移动用户和 ECSBS 之间的交互，其中选择可信的 ECSBS 为具有多宿主访问的移动用户提供缓存资源。此外，我们还分析了 Stackelberg 均衡，以共同最大化 ECSBS 和移动用户的效用。大量的仿真验证了所提出方案的效率以及缓存内容的可靠性和有效性。
Caching contents on edge computing-enabled small cell base stations (ECSBSs) has become a promising technology for mitigating burdens of macro cell base stations and offloading data from mobile users. However, as ECSBSs may be malicious, providing a secure caching scheme becomes a challenge. In this paper, we propose a novel secure caching scheme in heterogeneous networks for multihoming users. First, to provide the cached contents, a trust mechanism is designed to verify the reliability of each ECSBS. Then, in order to guarantee the integrity of cached contents and preserve the privacy of mobile users, a Chinese remainder theorem-based privacy preservation protocol is proposed. Next, we investigate the interactions among mobile users and ECSBSs by Stackelberg game, where the trusted ECSBSs are selected to provide caching resources for mobile users with multihoming access. In addition, we analyze the Stackelberg equilibrium to jointly maximize the utilities of ECSBSs and mobile users. Extensive simulations validate the efficiency of the proposed scheme with the reliability and effectiveness to cache contents.