Hybrid Precoders and Combiners for Sub- Connected and Fully Connected Structures
In Massive Multiple-Input Multiple-Output (MIMO) systems, the hybrid beamforming (BF) has been put forward to reduce the high implementation cost and energy consumption resulted from the tremendous requirements of dedicated Radio Frequency (RF) chains. This paper aims at to design hybrid analog and...
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| Vydáno v: | 2019 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW) s. 1 - 2 |
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01.05.2019
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| Abstract | In Massive Multiple-Input Multiple-Output (MIMO) systems, the hybrid beamforming (BF) has been put forward to reduce the high implementation cost and energy consumption resulted from the tremendous requirements of dedicated Radio Frequency (RF) chains. This paper aims at to design hybrid analog and digital precoders (combiners) for sub-connected and fully connected structures. In order to minimize the Euclidean distance between the optimal precoding matrix and products of analog and digital precoding matrices, an alternating optimization algorithm and a method for maximizing signal power are exploited. Then, based on Linear Minimum Mean Square Error (LMMSE) combiner, the same method is introduced to find the hybrid combiner. Simulation results demonstrate the proposed optimization algorithm 1 has a fast convergence rate, and the proposed hybrid BF method for sub-connected structure outperforms the case for fully connected structure. |
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| AbstractList | In Massive Multiple-Input Multiple-Output (MIMO) systems, the hybrid beamforming (BF) has been put forward to reduce the high implementation cost and energy consumption resulted from the tremendous requirements of dedicated Radio Frequency (RF) chains. This paper aims at to design hybrid analog and digital precoders (combiners) for sub-connected and fully connected structures. In order to minimize the Euclidean distance between the optimal precoding matrix and products of analog and digital precoding matrices, an alternating optimization algorithm and a method for maximizing signal power are exploited. Then, based on Linear Minimum Mean Square Error (LMMSE) combiner, the same method is introduced to find the hybrid combiner. Simulation results demonstrate the proposed optimization algorithm 1 has a fast convergence rate, and the proposed hybrid BF method for sub-connected structure outperforms the case for fully connected structure. |
| Author | Zhang, Yao Qiao, Xu Xu, Zhiqian Yang, Longxiang Cao, Haotong |
| Author_xml | – sequence: 1 givenname: Xu surname: Qiao fullname: Qiao, Xu organization: Wireless Communications Key laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications,Nanjing,China,210003 – sequence: 2 givenname: Yao surname: Zhang fullname: Zhang, Yao organization: Wireless Communications Key laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications,Nanjing,China,210003 – sequence: 3 givenname: Haotong surname: Cao fullname: Cao, Haotong organization: Wireless Communications Key laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications,Nanjing,China,210003 – sequence: 4 givenname: Zhiqian surname: Xu fullname: Xu, Zhiqian organization: Wireless Communications Key laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications,Nanjing,China,210003 – sequence: 5 givenname: Longxiang surname: Yang fullname: Yang, Longxiang organization: Wireless Communications Key laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications,Nanjing,China,210003 |
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| Snippet | In Massive Multiple-Input Multiple-Output (MIMO) systems, the hybrid beamforming (BF) has been put forward to reduce the high implementation cost and energy... |
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| SubjectTerms | analog precoding Array signal processing Convergence digital precoding Energy consumption Euclidean distance fully connected structure Hybrid beamforming Mean square error methods MIMO Optimization Precoding Radio frequency Simulation sub-connected structure |
| Title | Hybrid Precoders and Combiners for Sub- Connected and Fully Connected Structures |
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