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Joint User Scheduling and MU-MIMO Hybrid Beamforming Algorithm for mmWave FDMA Massive MIMO System
Joint Authors
Source
International Journal of Antennas and Propagation
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-11-17
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The large bandwidth and multipath in millimeter wave (mmWave) cellular system assure the existence of frequency selective channels; it is necessary that mmWave system remains with frequency division multiple access (FDMA) and user scheduling.
But for the hybrid beamforming system, the analog beamforming is implemented by the same phase shifts in the entire frequency band, and the wideband phase shifts may not be harmonious with all users scheduled in frequency resources.
This paper proposes a joint user scheduling and multiuser hybrid beamforming algorithm for downlink massive multiple input multiple output (MIMO) orthogonal frequency division multiple access (OFDMA) systems.
In the first step of user scheduling, the users with identical optimal beams form an OFDMA user group and multiplex the entire frequency resource.
Then base station (BS) allocates the frequency resources for each member of OFDMA user group.
An OFDMA user group can be regarded as a virtual user; thus it can support arbitrary MU-MIMO user selection and beamforming algorithms.
Further, the analog beamforming vectors employ the best beam of each selected MU-MIMO user and the digital beamforming algorithm is solved by weight MMSE to acquire the best performance gain and mitigate the interuser inference.
Simulation results show that hybrid beamforming together with user scheduling can greatly improve the performance of mmWave OFDMA massive MU-MIMO system.
American Psychological Association (APA)
Jiang, Jing& Kong, Deting. 2016. Joint User Scheduling and MU-MIMO Hybrid Beamforming Algorithm for mmWave FDMA Massive MIMO System. International Journal of Antennas and Propagation،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1105149
Modern Language Association (MLA)
Jiang, Jing& Kong, Deting. Joint User Scheduling and MU-MIMO Hybrid Beamforming Algorithm for mmWave FDMA Massive MIMO System. International Journal of Antennas and Propagation No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1105149
American Medical Association (AMA)
Jiang, Jing& Kong, Deting. Joint User Scheduling and MU-MIMO Hybrid Beamforming Algorithm for mmWave FDMA Massive MIMO System. International Journal of Antennas and Propagation. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1105149
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1105149