5G Mimo系统中分组导频复用与加密策略研究

2022 IEEE 5th International Conference on Electronics and Communication Engineering (ICECE) Pub Date : 2022-12-16 DOI:10.1109/ICECE56287.2022.10048666

Yongliang Jia, Peng Tao, Chao Zhang, Bingyu Zhang, Xinghan Pan

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引用次数: 0

摘要

针对大规模MIMO系统中导频污染问题，提出了一种分组导频复用策略，对导频序列进行重新分配。根据小区内用户干扰的严重程度将用户分为中心用户组和边缘用户组，边缘用户分配一个完全正交的导频序列;为了解决大规模MIMO系统中信号传输的安全问题，提出了一种基于导频的迭代加密算法。在发送导频信号之前，在调制部分添加迭代加密模块。仿真结果表明，该方法能有效抑制导频污染，抑制攻击者窃取信息，提高系统性能和安全性。

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Research on Packet Pilot Multiplexing and Encryption Strategy in 5G Mimo System

Aiming at the pilot pollution problem in large-scale MIMO system, a grouped pilot multiplexing strategy is proposed, which redistributes the pilot sequence. Users are divided into central user group and edge user group according to the severity of user interference in the cell, and the edge user is assigned a completely orthogonal pilot sequence; To solve the security problem of signal transmission in Massive MIMO systems, an iterative encryption algorithm based on pilot is presented. An iterative encryption module is added to the modulation part before the pilot signal is sent. The simulation results show that the proposed method can effectively suppress pilot pollution, suppress attacker stealing information, and improve system performance and security.

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2022 IEEE 5th International Conference on Electronics and Communication Engineering (ICECE)

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