Analysis and Cancellation of Mixed-Numerologies Interference for Massive MIMO-OFDM UL
Analysis and Cancellation of Mixed-Numerologies Interference for Massive MIMO-OFDM UL
复制标题
大规模MIMO-OFDM上行混合参数干扰分析与消除
DOI：
10.1109/lwc.2019.2959526
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发表时间：
2020
影响因子：
6.3
通讯作者：
D. Roviras
中科院分区：
文献类型：
--
作者：
Xinying Cheng;R. Zayani;H. Shaiek;D. Roviras
极为多样化的业务需求是未来几代无线通信技术面临的重要挑战。基于正交频分复用（OFDM）的大规模多输入多输出（MIMO）和混合数字传输是较有前途的解决方案。这封信调查了不同用户的传输，共享相同的带宽，而他们与不同的数字命理相关联。提出了一种管理混合数字命理频谱共享（SS）传输的收发器设计。然后，我们分析了数字命理间干扰（INI），并推导了相应的理论表达式。在导出的封闭表达式的基础上，提出了一种新的干扰抵消方案，有效地缓解了干扰，提高了大规模MIMO-OFDM上行系统的性能。
The extremely diverse service requirements is an important challenge for the future generations of wireless communication technologies. As promising solutions, orthogonal frequency division multiplexing (OFDM)-based massive multiple-input multiple-output (MIMO) and mixed numerologies transmission are proposed. This letter investigates the transmission of different users, sharing the same bandwidth while they are associated to different numerologies. A transceiver design which aims to manage the mixed numerology spectrum sharing (SS) transmission is first presented. Then, we analyze the inter-numerology interference (INI) and derive its corresponding theoretical expressions. Based on the derived closed-form expressions, a new INI cancellation scheme is introduced, which efficiently mitigates the INI and enhances the performance of massive MIMO-OFDM uplink systems.