Concavity Approximation Based Power Allocation in Millimeter-Wave MIMO Systems

This paper investigates the power allocation in millimeter-wave multiple-input multiple-output systems. The asymptotic concavity of the sum rate of the system is utilized to form the proposed power allocation approach. In contrast to the traditional approaches, the proposed approach utilizes a chann...

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Bibliographic Details
Published in:IEEE access 2017, Vol.5, p.25731-25740
Main Authors: Hu, Anzhong, Pan, Peng
Format: Article
Language:English
Subjects:
Antenna arrays
Approximation
Array signal processing
Asymptotic properties
beamspace
Concavity
Interference
Mathematical analysis
Millimeter wave technology
Millimeter waves
millimeter-wave (mm-wave)
MIMO
MIMO (control systems)
Multiple-input multiple-output (MIMO)
Orthogonality
power allocation
Resource management
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Summary:This paper investigates the power allocation in millimeter-wave multiple-input multiple-output systems. The asymptotic concavity of the sum rate of the system is utilized to form the proposed power allocation approach. In contrast to the traditional approaches, the proposed approach utilizes a channel asymptotic orthogonality-based approximation which is more suitable, thus achieves higher spectral efficiency. The analysis demonstrates that the sum rate of the system increases as the number of antennas increases. Numerical results verify the analysis and show that the proposed approach can perform better than those traditional approaches.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2017.2773491