Codebook-Based Hybrid Precoding for Millimeter Wave Multiuser Systems

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...

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Veröffentlicht in:IEEE transactions on signal processing Jg. 65; H. 20; S. 5289 - 5304
Hauptverfasser: Shiwen He, Jiaheng Wang, Yongming Huang, Ottersten, Bjorn, Wei Hong
Format: Journal Article
Sprache:Englisch
Veröffentlicht: IEEE 15.10.2017
Schlagworte:
Antennas
Baseband
Downlink
energy efficient communication
Hybrid precoding design
Millimeter wave communication
power allocation
Precoding
Radio frequency
successive convex approximation
ISSN:1053-587X, 1941-0476, 1941-0476
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Zusammenfassung: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.
ISSN:1053-587X
1941-0476
1941-0476
DOI:10.1109/TSP.2017.2723353