论文标题
部分可观测时空混沌系统的无模型预测
Low Complexity Hybrid Beamforming for mmWave Full-Duplex Integrated Access and Backhaul
论文作者
论文摘要
我们考虑以全双工（FD）模式运行的集成访问和回程（IAB）节点。我们分析了从新无线电GNB到回程上行链路上的IAB节点的同时传输，IAB节点是访问下行链路上的用户设备（UE），然后在自我干扰（SI）通道上的IAB发射机到IAB接收器。我们的贡献包括（1）低复杂性算法，用于共同设计所有三个节点的混合模拟/数字束形式，以通过取消SI和最大化接收的功率来最大化访问和回程链路的总和光谱效率； （2）用于基准测试的全数字波束形成和光谱效率上限； （3）模拟比较完整与半双层模式，混合和全数字波束成形算法，提议的混合算法与常规光束成形算法以及光谱效率上限。在模拟中，所提出的算法显示SI功率的显着降低和总和光谱效率的提高。
We consider an integrated access and backhaul (IAB) node operating in full-duplex (FD) mode. We analyze simultaneous transmission from the New Radio gNB to the IAB node on the backhaul uplink, IAB node to a user equipment (UE) on the access downlink, and IAB transmitter to the IAB receiver on the self-interference (SI) channel. Our contributions include (1) a low complexity algorithm to jointly design the hybrid analog/digital beamformers for all three nodes to maximize the sum spectral efficiency of the access and backhaul links by canceling SI and maximizing received power; (2) derivation of all-digital beamforming and spectral efficiency upper bound for use in benchmarking; and (3) simulations to compare full vs. half duplex modes, hybrid vs. all-digital beamforming algorithms, proposed hybrid vs. conventional beamforming algorithms, and spectral efficiency upper bound. In simulations, the proposed algorithm shows significant reduction in SI power and increase in sum spectral efficiency.
