| 大规模MIMO系统下的低复杂度迫零预编码技术 |
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| 引用本文： | 何怡刚,程彤彤,FarhanAli,黄 源,隋永波,宁暑光. 大规模MIMO系统下的低复杂度迫零预编码技术[J]. 电子测量与仪器学报, 2021, 35(6): 140-146 |
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| 作者姓名： | 何怡刚 程彤彤 FarhanAli 黄 源 隋永波 宁暑光 |
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| 作者单位： | 合肥工业大学 电气与自动化工程学院 合肥 230009 |
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| 基金项目： | 国家自然科学基金（51977153，51977161，51577046）、国家自然科学基金重点项目（51637004）、国家重点研发计划“重大科学仪器设备开发”项目（2016YFF0102200）、装备预先研究重点项目（41402040301）资助 |
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| 摘 要： | 针对大规模天线技术导致传统迫零(zero-forcing,ZF)预编码复杂度上升的问题,提出了一种低复杂度预编码技术.首先利用对称超松弛迭代(semi-iteration symmetric successive overrelaxation method,SSOR)技术优化信道矩阵求逆复杂度的问题;然后利用切比雪夫半...
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| 关 键 词： | 大规模MIMO 迫零预编码 SI-SSOR预编码 低运算复杂度 |
Low complexity ZF precoding in massive MIMO systems |
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| He Yigang,Cheng Tongtong,Farhan Ali,Huang Yuan,Sui Yongbo,Ning Shuguang. Low complexity ZF precoding in massive MIMO systems[J]. Journal of Electronic Measurement and Instrument, 2021, 35(6): 140-146 |
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| Authors: | He Yigang Cheng Tongtong Farhan Ali Huang Yuan Sui Yongbo Ning Shuguang |
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| Affiliation: | 1.School of Electrical Engineering and Automation, Hefei University of Technology |
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| Abstract: | The complexity of traditional zero-forcing (ZF) precoding increases due to large-scale antenna technology. We propose a lowcomplexity precoding technique. Firstly, the complexity of the matrix inversion problem is solved by using semi-iteration symmetricsuccessive overrelaxation method (SSOR) technique, then the convergence rate of SSOR technique is accelerated by Chebyshev semiiterative ( SI) method, which makes the zero forcing precoding technology converge quickly. The experimental results show that forChebyshev semi-iterative accelerated SSOR (SI-SSOR) precoding technique, it can approximate the 95% performance of ZF precodingwith 2 iterations, and it takes less computing resources than ZF precoding. Therefore, The SI-SSOR precoding can play one significanttechnique to resist the influence of the communication interference. |
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| Keywords: | massive MIMO zero-forcing Precoding SI-SSOR precoding low complexity |
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