Codebook-Based Hybrid Precoding for Millimeter Wave Multiuser Systems
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This paper investigates joint RF-baseband hybrid precoding for the downlink of multiuser multiantenna mmWave systems with a limited number of RF chains and proposes efficient methods to address the JWSPD problems and jointly optimize the RF and baseband precoders under the two performance measures.Abstract:
In millimeter-wave (mmWave) systems, antenna architecture limitations make it difficult to apply conventional fully digital precoding techniques but call for low-cost analog radio frequency (RF) and digital baseband hybrid precoding methods. This paper investigates joint RF-baseband hybrid precoding for the downlink of multiuser multiantenna mmWave systems with a limited number of RF chains. Two performance measures, maximizing the spectral efficiency and the energy efficiency of the system, are considered. We propose a codebook-based RF precoding design and obtain the channel state information via a beam sweep procedure. Via the codebook-based design, the original system is transformed into a virtual multiuser downlink system with the RF chain constraint. Consequently, we are able to simplify the complicated hybrid precoding optimization problems to joint codeword selection and precoder design (JWSPD) problems. Then, we propose efficient methods to address the JWSPD problems and jointly optimize the RF and baseband precoders under the two performance measures. Finally, extensive numerical results are provided to validate the effectiveness of the proposed hybrid precoders.read more
Citations
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Millimeter Wave Communications for Future Mobile Networks
Ming Xiao,Shahid Mumtaz,Yongming Huang,Linglong Dai,Yonghui Li,Michail Matthaiou,George K. Karagiannidis,Emil Björnson,Kai Yang,Chih-Lin I,Amitabha Ghosh +10 more
TL;DR: A comprehensive survey of mmWave communications for future mobile networks (5G and beyond) is presented, including an overview of the solution for multiple access and backhauling, followed by the analysis of coverage and connectivity.
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Zhi Chen,Xinying Ma,Bo Zhang,Yaxin Zhang,Zhongqian Niu,Ningyuan Kuang,Wenjie Chen,Lingxiang Li,Shaoqian Li +8 more
TL;DR: A comprehensive literature review on the development towards terahertz communications and some key technologies faced in THz wireless communication systems are presented and several potential application scenarios are discussed.
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Joint Beamforming for Secure Communication in Cognitive Satellite Terrestrial Networks
TL;DR: This paper proposes beamforming (BF) schemes to utilize the interference from the terrestrial network as a green source to enhance the physical-layer security for the satellite network, provided that the two networks share the portion of millimeter-wave frequencies.
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Robust Secure Beamforming for 5G Cellular Networks Coexisting With Satellite Networks
TL;DR: This paper studies the robust secure beamforming (BF) issue of fifth generation (5G) cellular system operating at millimeter wave frequency and coexisting with a satellite network and proposes two robust BF methods to solve the complex optimization problem for both coordinated and uncoordinated Eves.
Millimeter wave beamforming for wireless backhaul and access in small cell networks and practical approaches in software-defined radio
TL;DR: In this paper, an efficient beam alignment technique using adaptive subspace sampling and hierarchical beam codebooks was proposed to solve the problem of spectrum reusability and flexible prototyping radio platform using software-defined radio (SDR).
References
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Millimeter Wave Mobile Communications for 5G Cellular: It Will Work!
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Spatially Sparse Precoding in Millimeter Wave MIMO Systems
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Millimeter-Wave Cellular Wireless Networks: Potentials and Challenges
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Channel Estimation and Hybrid Precoding for Millimeter Wave Cellular Systems
TL;DR: An adaptive algorithm to estimate the mmWave channel parameters that exploits the poor scattering nature of the channel is developed and a new hybrid analog/digital precoding algorithm is proposed that overcomes the hardware constraints on the analog-only beamforming, and approaches the performance of digital solutions.