Joint hybrid precoder and combiner design for multi-stream transmission in mmWave MIMO systems

Millimeter wave (mmWave) communications have been considered as a key technology for future 5G wireless networks since it can provide orders-of-magnitude wider bandwidth than current cellular bands. To overcome the severe propagation loss of the mmWave channel, an economic and energy-efficient analo...

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Vydáno v:IET communications Ročník 11; číslo 17; s. 2596 - 2604
Hlavní autoři: Li, Ming, Wang, Zihuang, Tian, Xiaowen, Liu, Qian
Médium: Journal Article
Jazyk:angličtina
Vydáno: The Institution of Engineering and Technology 30.11.2017
Témata:
5G mobile communication
5G wireless networks
cellular bands
codebook‐based hybrid beamforming schemes
codebook‐based joint hybrid precoder
codecs
combiner design
digital precoding‐combining layer
energy‐efficient analogue‐digital hybrid precoding
hybrid precoder
millimeter wave communications
MIMO communication
mmWave channel
mmWave massive multiple‐input multiple‐output systems
mmWave MIMO systems
multistream transmission
partially‐connected hybrid beamforming structures
precoding
Research Article
telecommunication channels
millimeter wave communications
telecommunication channels
5G mobile communication
codecs
combiner design
precoding
codebook-based joint hybrid precoder
cellular bands
mmWave massive multiple-input multiple-output systems
5G wireless networks
mmWave MIMO systems
mmWave channel
hybrid precoder
energy-efficient analogue-digital hybrid precoding
codebook-based hybrid beamforming schemes
multistream transmission
digital precoding-combining layer
partially-connected hybrid beamforming structures
MIMO communication
ISSN:1751-8628, 1751-8636
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Popis
Shrnutí:Millimeter wave (mmWave) communications have been considered as a key technology for future 5G wireless networks since it can provide orders-of-magnitude wider bandwidth than current cellular bands. To overcome the severe propagation loss of the mmWave channel, an economic and energy-efficient analogue/digital hybrid precoding and combining transceiver architecture is widely used in mmWave massive multiple-input multiple-output (MIMO) systems. The digital precoding/combining layer offers more freedom than pure analogue one and enables multi-stream transmission. In this study, the authors consider the problem of codebook-based joint hybrid precoder and combiner design for multi-stream transmission in mmWave MIMO systems. The authors propose to jointly select an analogue precoder and combiner pair for each data stream successively, which can maximise the channel gain as well as suppress the interference between different data streams. Then, the digital precoder and combiner are computed based on the obtained effective baseband channel to further mitigate the interference and maximise the sum-rate. Both fully-connected and partially-connected hybrid beamforming structures are investigated. Simulation results demonstrate that the proposed algorithms exhibit prominent advantages in combating interference between different data streams and offer satisfactory performance improvements compared with the existing codebook-based hybrid beamforming schemes.
ISSN:1751-8628
1751-8636
DOI:10.1049/iet-com.2017.0263