Rate Region of the K-user MIMO Interference Channel with Imperfect Transmitters
Rate Region of the K-user MIMO Interference Channel with Imperfect Transmitters
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DOI：
10.23919/eusipco47968.2020.9287450
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发表时间：
2021-01
期刊：
影响因子：
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通讯作者：
M. Soleymani;I. Santamaría;B. Maham;P. Schreier
中科院分区：
文献类型：
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作者：
M. Soleymani;I. Santamaría;B. Maham;P. Schreier
本文研究了在接收端将干扰视为噪声时，发射机不完善的多输入多输出（MIMO）系统的速率域。我们考虑一个K用户MIMO干扰信道（IC）中的发射机遭受的附加硬件失真（HWD）建模为空间不相关的高斯噪声与协方差矩阵成比例的发送协方差矩阵。我们采用凸规划差分（DCP）技术来解决率域优化问题，并获得其稳定点。我们提出的HWD感知算法优于忽略HWD的HWD感知设计。我们的研究结果表明，性能的K用户MIMO IC的HWD的影响很大，特别是在高信噪比的情况下。
This paper studies the rate region of a multiple-input, multiple-output (MIMO) system with imperfect transmitters when interference is treated as noise at the receiver side. We consider a K-user MIMO interference channel (IC) in which the transmitters suffer from an additive hardware distortion (HWD) modeled as spatially uncorrelated Gaussian noise with covariance matrix proportional to the transmit covariance matrix. We employ the difference of convex programming (DCP) technique to solve the rate-region optimization problem and obtain its stationary points. Our proposed HWD-aware algorithm outperforms the HWD-unaware design that disregards HWD. Our results show that the performance of the K-user MIMO IC is highly affected by HWD, especially in high signal-to-noise-ratio scenarios.