论文标题
通过BS合作的MMWave网络中混合缓存的分析和优化
Analysis and Optimization of Hybrid Caching in mmWave Networks with BS Cooperation
论文作者
论文摘要
在本文中，我们研究了一种混合缓存策略，以最大化成功传输概率（STP）（MMWAVE）启用缓存网络中的成功传输概率（STP）。首先，我们通过利用随机几何形状来得出STP的理论表达和平均系统传输延迟，然后我们考虑STP的最大化以及通过优化设计参数的平均系统传输延迟的最小化。考虑到NP硬性问题的最佳结构，原始问题被转移到多选择背包问题（MCKP）中。最后，我们研究了关键网络参数对STP的影响和平均系统传输延迟。数值结果证明了所提出的缓存策略优于启用MMWave缓存网络中常规的缓存策略。
In this paper, we investigate a hybrid caching strategy maximizing the success transmission probability (STP) in a millimeter wave (mmWave) cache-enabled network. First, we derive theoretical expressions of the STP and the average system transmission delay by utilizing stochastic geometry, then we consider the maximization of the STP and the minimization of the average system transmission delay by optimizing the design parameters. Considering the optimality structure of the NP-hard problem, the original problem is transferred into a multi-choice knapsack problem (MCKP). Finally, we investigate the impact of key network parameters on the STP and the average system transmission delay. Numerical results demonstrate the superiority of the proposed caching strategy over the conventional caching strategies in the mmWave cache-enabled networks.
