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Jointly Optimized Cache Control and Energy Efficiency for Downlink Cellular Networks

机译:下行链路蜂窝网络共同优化的缓存控制和能效

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In this paper, we propose an optimal scheme for solving the joint cache control and energy efficiency optimization problem for the downlink transmission in a backhaul cellular network. The first short-term subproblem is aimed at finding the optimal beamforming matrices at the hub and BSs to maximize the energy efficiency for the scenario where the network operates in the non-caching mode. The second short-term subproblem is aimed at solving the optimal beamforming matrices at the base stations (BSs) to maximize the energy efficiency for the scenario where the network operates in the caching mode. On the other hand, the goal of the long-term subproblem is to maximize the long-term energy efficiency of the examined network. Finally, numerical results show that the proposed cache control and energy efficiency optimization scheme provides significant performance improvement over the conventional non-caching schemes.
机译:在本文中,我们提出了一种最佳方案,用于解决回程蜂窝网络中的下行链路传输的关节高速缓存控制和能效优化问题。第一短期子问题旨在在集线器和BS中找到最佳波束成形矩阵,以最大化网络在非缓存模式下操作的场景的能量效率。第二短期子问题旨在求解基站(BSS)的最佳波束形成矩阵,以最大化网络在高速缓存模式下操作的场景的能量效率。另一方面,长期子问题的目标是最大化检查网络的长期能量效率。最后,数值结果表明,所提出的高速缓存控制和能效优化方案提供了通过传统的非缓存方案的显着性能改进。

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