An Efficient mmWave MIMO Transmission with Hybrid Precoding

• Ying Liu,
• Jinhong Bian,
• Yuanyuan Wang,

Vol. 18, No. 7, July 31, 2024
10.3837/tiis.2024.07.015, Download Paper (Free):

• Hybrid precoder
• mmWave communications
• penalty dual decomposition.

Abstract

This work investigates the hybrid precoder scheme in a millimeter wave (mmWave) multi-user MIMO system. We study a sum rate maximization scheme by jointly designing the digital precoder and the analog precoder. To handle the non-convex problem, a block coordinate descent (BCD) method is formulated, where the digital precoder is solved by a bisection search and the analog precoder is addressed by the penalty dual decomposition (PDD) alternately. Then, we extend the proposed algorithm to the sub-connected schemes. Besides, the proposed algorithm enjoys lower computational complexity when compared with other benchmarks. Simulation results verify the performance of the proposed scheme and provide some meaningful insight.

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