Precoder Design for Dynamically Sub-connected Hybrid Architecture in MU-MISO-OFDM Systems

Hybrid precoding combined with large-scale antenna arrays is considered as a key enabling technology for millimeter wave (mmWave) communications for its advantages in both reducing the number of power-hungry radio frequency (RF) chains and providing for spatial multiplexing. In this paper, we consid...

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Published in:IEEE Vehicular Technology Conference pp. 1 - 5
Main Authors: Li, Hongyu, Liu, Rang, Wang, Zihuan, Li, Ming, Liu, Qian
Format: Conference Proceeding
Language:English
Published: IEEE 01.11.2020
Subjects:
Adaptive arrays
dynamically sub-connected hybrid architecture
Heuristic algorithms
hybrid precoding
low-resolution phase shifter (PS)
Millimeter wave (mmWave) communications
Millimeter wave technology
Phase shifters
Precoding
Radio frequency
Simulation
ISSN:2577-2465
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Abstract Hybrid precoding combined with large-scale antenna arrays is considered as a key enabling technology for millimeter wave (mmWave) communications for its advantages in both reducing the number of power-hungry radio frequency (RF) chains and providing for spatial multiplexing. In this paper, we consider a dynamically sub-connected hybrid architecture with hardware-efficient low-resolution phase shifters (PSs) for a wide-band mmWave multi-user multi-input single-output orthogonal frequency division multiplexing (MU-MISO-OFDM) system. In this architecture, each RF chain is adaptively connected to a non-overlapping subarray corresponding to channel state information (CSI). Thus, multiple-antenna diversity can be fully utilized to mitigate the performance loss caused by the use of low-resolution PSs. Aiming at maximize the average sum-rate of the considered mmWave MU-MISO-OFDM system, we develop an iterative algorithm based on penalty dual decomposition (PDD) methods. Simulation results demonstrate the advantages of the considered dynamically sub-connected hybrid architecture.
AbstractList Hybrid precoding combined with large-scale antenna arrays is considered as a key enabling technology for millimeter wave (mmWave) communications for its advantages in both reducing the number of power-hungry radio frequency (RF) chains and providing for spatial multiplexing. In this paper, we consider a dynamically sub-connected hybrid architecture with hardware-efficient low-resolution phase shifters (PSs) for a wide-band mmWave multi-user multi-input single-output orthogonal frequency division multiplexing (MU-MISO-OFDM) system. In this architecture, each RF chain is adaptively connected to a non-overlapping subarray corresponding to channel state information (CSI). Thus, multiple-antenna diversity can be fully utilized to mitigate the performance loss caused by the use of low-resolution PSs. Aiming at maximize the average sum-rate of the considered mmWave MU-MISO-OFDM system, we develop an iterative algorithm based on penalty dual decomposition (PDD) methods. Simulation results demonstrate the advantages of the considered dynamically sub-connected hybrid architecture.
Author Liu, Rang
Li, Ming
Li, Hongyu
Liu, Qian
Wang, Zihuan
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  email: qianliu@dlut.edu.cn
  organization: Dalian University of Technology,School of Computer Science and Technology,Dalian,China,116024
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Snippet Hybrid precoding combined with large-scale antenna arrays is considered as a key enabling technology for millimeter wave (mmWave) communications for its...
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SubjectTerms Adaptive arrays
dynamically sub-connected hybrid architecture
Heuristic algorithms
hybrid precoding
low-resolution phase shifter (PS)
Millimeter wave (mmWave) communications
Millimeter wave technology
Phase shifters
Precoding
Radio frequency
Simulation
Title Precoder Design for Dynamically Sub-connected Hybrid Architecture in MU-MISO-OFDM Systems
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