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arXiv 2404.04443eess.SP
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一种具有波束聚类的新型太比特波束网格无线光多用户接入网络

A Novel Terabit Grid-of-Beam Optical Wireless Multi-User Access Network with Beam Clustering

Hossein Kazemi, Elham Sarbazi, Michael Crisp, Taisir E. H. El-Gorashi, Jaafar M. H. Elmirghani, Richard V. Penty, Ian H. White, Majid Safari, Harald Haas

AI总结:

本文提出一种基于VCSELs双层AP架构的6G太比特红外室内无线光网络,采用静态波束聚类与CoMB-JT管理干扰,结合NOMA和OFDMA,实现高达15 Gb/s数据速率并平衡总速率与公平性。

摘要:

本文提出了第六代(6G)太比特红外(IR)激光室内无线光网络的概念验证。我们提出了一种基于垂直腔面发射激光器(VCSELs)阵列的阵列的新型双层接入点(AP)架构,以提供每波束多Gb/s的无缝波束网格覆盖。我们对该AP架构进行了系统设计和全面解析建模,随后将其应用于使用非成像角度分集接收机(ADRs)的下行链路系统建模。我们提出了静态波束聚类与协调多波束联合传输(CoMB-JT)用于网络干扰管理,并设计了多种聚类策略以解决波束间干扰(IBI)和簇间干扰(ICI)。还采用了非正交多址接入(NOMA)和正交频分多址接入(OFDMA)方案来处理簇内干扰,并推导了由此产生的信号干扰加噪声比(SINR)和可达数据速率。通过大量计算机仿真,从下行链路SINR和数据速率的空间分布与统计特性方面研究了网络性能。结果表明,覆盖区域内实现了高达15 Gb/s的数据速率,且精心设计的聚类能根据用户数量在总速率和公平性之间取得平衡。

英文摘要:

In this paper, we put forward a proof of concept for sixth generation (6G) Terabit infrared (IR) laser-based indoor optical wireless networks. We propose a novel double-tier access point (AP) architecture based on an array of arrays of vertical cavity surface emitting lasers (VCSELs) to provide a seamless grid-of-beam coverage with multi-Gb/s per beam. We present systematic design and thorough analytical modeling of the AP architecture, which are then applied to downlink system modeling using non-imaging angle diversity receivers (ADRs). We propose static beam clustering with coordinated multi-beam joint transmission (CoMB-JT) for network interference management and devise various clustering strategies to address inter-beam interference (IBI) and inter-cluster interference (ICI). Non-orthogonal multiple access (NOMA) and orthogonal frequency division multiple access (OFDMA) schemes are also adopted to handle intra-cluster interference, and the resulting signal-to-interference-plus-noise ratio (SINR) and achievable data rate are derived. The network performance is studied in terms of spatial distributions and statistics of the downlink SINR and data rate through extensive computer simulations. The results demonstrate that data rates up to 15 Gb/s are achieved within the coverage area and a properly devised clustering strikes a balance between the sum rate and fairness depending on the number of users.

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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