Design of Group Precoding for MU-MIMO Systems with Exponential Spatial Correlation Channel

Dinh, Van-Khoi and Chu, Thanh-Binh and Le, Minh-Tuan and Ngo, Vu-Duc (2021) Design of Group Precoding for MU-MIMO Systems with Exponential Spatial Correlation Channel. EAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 8 (26). e2. ISSN 2410-0218

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Abstract

In this paper, a low-complexity precoding algorithm is proposed to reduce the computational complexity and improve the performance for MU-MIMO systems under exponential spatial correlation channel conditions. The proposed precoders are designed consisting of two components: The first one minimizes the interference among neighboring user groups, while the second one improves the system performance. Numerical and simulation results show that the proposed precoders have remarkably lower computational complexities than their existing LC-RBD-LR-ZF and BD counterparts. Besides, BER performances of the proposed precoders are asymptotic to that of LC-RBD-LR-ZF precoder at the low SNR region and better than that of LC-RBD-LR-ZF precoder at the high SNR region. Simulation results also show that the performance of the proposed algorithms is significantly improved compared to the BD algorithm in an exponential spatial correlation channel.

Item Type: Article
Uncontrolled Keywords: MU-MIMO system, linear precoding algorithms, lattice reduction algorithms
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
QA75 Electronic computers. Computer science
T Technology > T Technology (General)
Depositing User: EAI Editor IV
Date Deposited: 20 Apr 2021 07:37
Last Modified: 20 Apr 2021 07:37
URI: https://eprints.eudl.eu/id/eprint/2593

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