Energy-Efficient Transceiver Design for Hybrid Sub-Array Architecture MIMO Systems

Millimeter-wave (mmWave) communication operated in frequency bands between 30 and 300 GHz has attracted extensive attention due to the potential ability of offering orders of magnitude greater bandwidths combined with further gains via beamforming and spatial multiplexing from multi-element antenna...

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Vydáno v:IEEE access Ročník 4; s. 9895 - 9905
Hlavní autoři: He, Shiwen, Qi, Chenhao, Wu, Yongpeng, Huang, Yongming
Médium: Journal Article
Jazyk:angličtina
Vydáno: Piscataway IEEE 2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Algorithms
analog precoding and combining
Antenna arrays
Antennas
Beamforming
Design optimization
Energy conversion efficiency
Energy efficiency
Frequencies
Hybrid systems
interference alignment
Mathematical programming
Millimeter waves
Millimeter-wave communication
MIMO
MIMO (control systems)
multiple-input multiple-output (MIMO) system
Orthogonal Frequency Division Multiplexing
Phase shifters
Precoding
Radio equipment
Radio frequency
Receivers
Transceivers
Transmitters
Wireless communication
ISSN:2169-3536, 2169-3536
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Popis
Shrnutí:Millimeter-wave (mmWave) communication operated in frequency bands between 30 and 300 GHz has attracted extensive attention due to the potential ability of offering orders of magnitude greater bandwidths combined with further gains via beamforming and spatial multiplexing from multi-element antenna arrays. mmwave system may exploit the hybrid analog and digital precoding to achieve simultaneously the diversity, array and multiplexing gain with a lower cost of implementation. Motivated by this, in this paper, we investigate the design of hybrid precoder and combiner with sub-connected architecture, where each radio frequency chain is connected to only a subset of base station antennas from the perspective of energy efficient transmission. The problem of interest is a non-convex and NP-hard problem that is difficult to solve directly. In order to address it, we resort to design a two-layer optimization method to solve the problem of interest by exploiting jointly the interference alignment and fractional programming. First, the analog precoder and combiner are optimized via the alternating-direction optimization method where the phase shifter can be easily adjusted with an analytical structure. Then, we optimize the digital precoder and combiner based on an effective multiple-input multiple-output channel coefficient. The convergence of the proposed algorithms is proved using the monotonic boundary theorem and fractional programming theory. Extensive simulation results are given to validate the effectiveness of the presented method and to evaluate the energy efficiency performance under various system configurations.
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ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2017.2649539