论文标题
实际上，具有访问点模式分配的全双工不含单元的大型MIMO
Virtually Full-duplex Cell-Free Massive MIMO with Access Point Mode Assignment
论文作者
论文摘要
我们考虑使用几乎完全完整的（VFD）模式的无单元大量多输入多输出（MIMO）网络，其中具有下链接（DL）模式的访问点（APS）以及具有同时服务DL和UL用户（UES）的访问点（APS）。为了最大程度地提高DL和UL传输的总和光谱效率（SE），我们制定了一个混合智能优化问题，以共同设计AP模式分配和功率控制。此问题应受到最低要求的要求，每个AP功率控制和每日电源限制。通过采用连续的凸近似技术，我们提出了一种算法，以获得配方问题的固定解决方案。数值结果表明，所提出的VFD方法可以提供$ 2.5 $和$ 1.5 $ 1.5美元的款项，分别比传统的半双链和启发式基线方案大于$ 95 \％$ $ - 可能的总和SE。
We consider a cell-free massive multiple-input multiple-output (MIMO) network utilizing a virtually full-duplex (vFD) mode, where access points (APs) with a downlink (DL) mode and those with an uplink (UL) mode simultaneously serve DL and UL users (UEs). In order to maximize the sum spectral efficiency (SE) of the DL and UL transmissions, we formulate a mixed-integer optimization problem to jointly design the AP mode assignment and power control. This problem is subject to minimum per-UE SE requirements, per-AP power control, and per-UL UE power constraints. By employing the successive convex approximation technique, we propose an algorithm to obtain a stationary solution of the formulated problem. Numerical results show that the proposed vFD approach can provide a sum SE that is $2.5$ and $1.5$ times larger than the traditional half-duplex and heuristic baseline schemes, respectively, in terms of $95\%$-likely sum SE.
