发表机构
Stanford University; Northwestern University（斯坦福大学; 西北大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出一种基于IEEE 1900.5.2频谱消耗模型的协作式动态频谱接入机制，联合设计预编码与频谱分配，以减少频谱使用并满足信干噪比目标，仿真验证了其空间共享优势。
AI 中文摘要
本文将均匀平面阵列纳入基于IEEE 1900.5.2频谱消耗模型（SCM）的协作式动态频谱接入（DSA）机制。与先前假设固定辐射方向图的基于SCM的DSA工作不同，所提出的DSA机制将辐射方向图视为设计变量，并联合设计预编码器和频谱分配。系统模型为无蜂窝下行链路、多用户、多输入单输出网络，该架构适用于大规模网络的密集室内部署，如在线零售商的履约中心。主要目标是在每个接收机处满足目标信干噪比的同时减少频谱使用。为此，本文提出了一种利用上下行互易性的泄漏感知迭代注水预编码器、一种进一步鼓励频谱共享的功率控制方法，以及一种基于SCM兼容性测试将频谱分配给基站的顺序准入算法。在室内仓库环境中的仿真表明，所提出的DSA机制更好地利用了空间维度进行频谱共享。
英文摘要
This paper incorporates uniform planar arrays into a cooperative dynamic spectrum access (DSA) mechanism based on the IEEE 1900.5.2 spectrum consumption model (SCM). Unlike prior work on SCM-based DSA that assume a fixed radiation pattern, the proposed DSA mechanism treats the radiation pattern as a design variable and jointly designs the precoder and spectrum allocation. The system model is a cell-free downlink, multiuser, multiple-input single-output network, an architecture that suits the dense indoor deployments of large-scale networks such as online retailers' fulfillment centers. The main objective is to reduce spectrum use while meeting a target signal-to-interference-plus-noise ratio at every receiver. To this end, this paper proposes a leakage-aware iterative water-filling precoder using uplink-downlink reciprocity, a power-control method that further encourages spectrum sharing, and a sequential admission algorithm that allocates spectrum to base stations based on the SCM compatibility test. Simulations in an indoor warehouse setting show that the proposed DSA mechanism better utilizes the spatial dimension for spectrum sharing.
Comments6 pages, 4 figures
