arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2310.20198eess.SP
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面向多用户数据通信的结构化两级真时延阵列码本设计

Structured Two-Stage True-Time-Delay Array Codebook Design for Multi-User Data Communication

Aditya Wadaskar, Ding Zhao, Ibrahim Pehlivan, Danijela Cabric

AI总结:

本文提出结构化两级真时延码本设计,利用阶梯式TTD架构实现子带到角度的量化映射,生成子带特定波束以支持宽带多用户通信。

摘要:

宽带毫米波和太赫兹(THz)系统能够促进与多个空间分离用户的同时数据通信。通过部署具有子带特定空间响应的频率相关波束,在子带间对用户进行正交化是可取的。真时延(TTD)天线阵列是一种有前景的宽带架构,可使用单个射频(RF)链实现波束在空间上的子带特定色散。本文提出了一种模拟TTD码本的结构化设计,以生成具有量化子带到角度映射的波束。我们引入了一种结构化阶梯式TTD码本,并分析了所得波束模式的频率空间行为。我们开发了所提码本的闭式两级设计,以实现所需的子带特定波束,并在多用户通信网络中评估其性能。

英文摘要:

Wideband millimeter-wave and terahertz (THz) systems can facilitate simultaneous data communication with multiple spatially separated users. It is desirable to orthogonalize users across sub-bands by deploying frequency-dependent beams with a sub-band-specific spatial response. True-Time-Delay (TTD) antenna arrays are a promising wideband architecture to implement sub-band-specific dispersion of beams across space using a single radio frequency (RF) chain. This paper proposes a structured design of analog TTD codebooks to generate beams that exhibit quantized sub-band-to-angle mapping. We introduce a structured Staircase TTD codebook and analyze the frequency-spatial behaviour of the resulting beam patterns. We develop the closed-form two-stage design of the proposed codebook to achieve the desired sub-band-specific beams and evaluate their performance in multi-user communication networks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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