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首页> 外文期刊>Nano communication networks >Realizing Ultra-Massive MIMO (1024 × 1024) communication in the (0.06-10) Terahertz band
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Realizing Ultra-Massive MIMO (1024 × 1024) communication in the (0.06-10) Terahertz band

机译：在（0.06-10）太赫兹频带中实现超大规模MIMO（1024×1024）通信

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摘要

The increasing demand for higher bandwidth and higher speed wireless communication motivates the exploration of higher frequency bands. The Terahertz (THz) band (0.06-10 THz) is envisioned as one of the key players to meet the demand for such higher bandwidth and data rates. However, the available bandwidth at THz frequencies comes with the cost of a much higher propagation loss. Due to the power limitations of compact solid-state THz transceivers, this results in very short communication distances of approximately one meter. In this paper, the concept of Ultra-Massive Multiple Input Multiple Output (UM MIMO) communication is introduced as a way to increase the communication distance and the achievable capacity of THz-band communication networks. The very small size of THz plasmonic nano-antennas, which leverage the properties of nanomaterials and metamaterials, enables the development of very large plasmonic arrays in very small footprints. For frequencies in the 0.06-1 THz range, metamaterials enable the design of plasmonic antenna arrays with hundreds of elements in a few square centimeters (e.g., 144 elements in 1 cm~2 at 60 GHz). In the 1-10 THz band, graphene-based plasmonic nano-antenna arrays with thousands of elements can be embedded in a few square millimeters (e.g., 1024 elements in 1 mm~2 at 1 THz). The resulting arrays can be utilized both in transmission and in reception (e.g., 1024 × 1024 UM MIMO at 1 THz) to support different modes, from razor-sharp UM beamforming to UM spatial multiplexing, as well as multi-band communication schemes. After introducing the main properties of plasmonic nano-antenna arrays, the working modes of UM MIMO are presented, and preliminary results are provided to highlight the potential of this paradigm. Finally, open challenges and potential solutions to enable UM MIMO communication are described.
机译：对更高带宽和更高速度无线通信的需求不断增长，促使人们探索更高的频段。太赫兹（THz）频带（0.06-10 THz）被设想为满足此类更高带宽和数据速率需求的关键参与者之一。但是，太赫兹频率下的可用带宽会带来更高的传播损耗。由于紧凑型固态太赫兹收发器的功率限制，这导致大约一米的非常短的通信距离。本文介绍了超大规模多输入多输出（UM MIMO）通信的概念，作为增加通信距离和THz频段通信网络可实现容量的一种方法。利用纳米材料和超材料的特性，太赫兹的等离子纳米天线的尺寸非常小，从而可以在很小的占地面积内开发出很大的等离子阵列。对于0.06-1 THz范围内的频率，超材料可以实现在几平方厘米内具有数百个元素（例如60 GHz下1 cm〜2的144个元素）的等离激元天线阵列的设计。在1-10 THz频带中，具有数千个元素的基于石墨烯的等离子体纳米天线阵列可以嵌入几平方毫米（例如，在1 THz的1 mm〜2中有1024个元素）。所得的阵列可用于发射和接收（例如1 THz的1024×1024 UM MIMO）以支持不同的模式，从锐利的UM波束成形到UM空间多路复用以及多频带通信方案。在介绍了等离激元纳米天线阵列的主要特性之后，提出了UM MIMO的工作模式，并提供了初步结果以突出这种范例的潜力。最后，描述了实现UM MIMO通信的挑战和潜在解决方案。

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