.png){kind=icon}
返回
Secure Massive MIMO Systems With Limited RF Chains
.png){kind=icon}
OA
AI
DOI：10.1109/TVT.2016.2615885.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
In future practical deployments of massive multi-input multioutput (MIMO) systems, the number of radio-frequency (RF) chains at the base stations (BSs) may be much smaller than the number of BS antennas to reduce the overall expenditure. In this correspondence, we propose a novel design framework for joint data and artificial noise (AN) precoding in a multiuser massive MIMO system with limited number of RF chains, which improves the wireless security performance. With imperfect channel state information (CSI), we analytically derive an achievable lower bound on the ergodic secrecy rate of any mobile terminal (MT) for both analog and hybrid precoding schemes. The closed-form lower bound is used to determine optimal power splitting between data and AN that maximizes the secrecy rate through simple 1-D search. Analytical and numerical results together reveal that the proposed hybrid precoder, although suffering from reduced secrecy rate compared with the theoretical full-dimensional precoder, is free of the high computational complexity of large-scale matrix inversion and null-space calculations and largely reduces the hardware cost.
Keyword:
Artificial noise
hybrid precoder
imperfect channel-state information (CSI)
limited radio-frequency (RF) chains
massive multiple-input multiple-output (MIMO)
physical layer security
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
7.1
论文数:
1.8W
被引数:
6.6W
机构
引用论文
Indirect micro-scale method for the determination of desferrioxamine and its aluminium and iron chelated forms in biological samples by atomic absorption spectrometry with electrothermal atomisation.png)
The Analyst
The AnalystIF0
PREAI
分享收藏Linear Precoding of Data and Artificial Noise in Secure Massive MIMO Systems安全大规模MIMO系统中数据和人工噪声的线性预编码OAAI
OAAI分享收藏Secure Transmission With Artificial Noise Over Fading Channels: Achievable Rate and Optimal Power Allocation在衰落信道上使用人工噪声进行安全传输: 可达到的速率和最佳功率分配OAAI
OAAI分享收藏
查看更多内容