Alternating minimization for hybrid precoding in multiuser OFDM mmWave systems

Xianghao Yu, Jun Zhang, Khaled Letaief

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

Hybrid precoding is a cost-effective approach to support directional transmissions for millimeter wave (mmWave) communications. While existing works on hybrid precoding mainly focus on single-user single-carrier transmission, in practice multicarrier transmission is needed to combat the much increased bandwidth, and multiuser MIMO can provide additional spatial multiplexing gains. In this paper, we propose a new hybrid precoding structure for multiuser OFDM mmWave systems, which greatly simplifies the hybrid precoder design and is able to approach the performance of the fully digital precoder. In particular, two groups of phase shifters are combined to map the signals from radio frequency (RF) chains to antennas. Then an effective hybrid precoding algorithm based on alternating minimization (AltMin) is proposed, which will alternately optimize the digital and analog precoders. A major algorithmic innovation is a LASSO formulation for the analog precoder, which yields computationally efficient algorithms. Simulation results will show the performance gain of the proposed algorithm. Moreover, it will reveal that canceling the interuser interference is critical in multiuser OFDM hybrid precoding systems.

Original languageEnglish
Title of host publicationConference Record of the 50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016
PublisherIEEE Computer Society
Pages281-285
Number of pages5
ISBN (Electronic)9781538639542
DOIs
Publication statusPublished - 1 Mar 2017
Externally publishedYes
Event50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016 - Pacific Grove, United States
Duration: 6 Nov 20169 Nov 2016

Other

Other50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016
CountryUnited States
CityPacific Grove
Period6/11/169/11/16

Fingerprint

Millimeter waves
Orthogonal frequency division multiplexing
Carrier communication
Phase shifters
Hybrid systems
Multiplexing
MIMO systems
Innovation
Antennas
Bandwidth
Communication
Costs

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

Cite this

Yu, X., Zhang, J., & Letaief, K. (2017). Alternating minimization for hybrid precoding in multiuser OFDM mmWave systems. In Conference Record of the 50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016 (pp. 281-285). [7869042] IEEE Computer Society. https://doi.org/10.1109/ACSSC.2016.7869042

Alternating minimization for hybrid precoding in multiuser OFDM mmWave systems. / Yu, Xianghao; Zhang, Jun; Letaief, Khaled.

Conference Record of the 50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016. IEEE Computer Society, 2017. p. 281-285 7869042.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yu, X, Zhang, J & Letaief, K 2017, Alternating minimization for hybrid precoding in multiuser OFDM mmWave systems. in Conference Record of the 50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016., 7869042, IEEE Computer Society, pp. 281-285, 50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016, Pacific Grove, United States, 6/11/16. https://doi.org/10.1109/ACSSC.2016.7869042
Yu X, Zhang J, Letaief K. Alternating minimization for hybrid precoding in multiuser OFDM mmWave systems. In Conference Record of the 50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016. IEEE Computer Society. 2017. p. 281-285. 7869042 https://doi.org/10.1109/ACSSC.2016.7869042
Yu, Xianghao ; Zhang, Jun ; Letaief, Khaled. / Alternating minimization for hybrid precoding in multiuser OFDM mmWave systems. Conference Record of the 50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016. IEEE Computer Society, 2017. pp. 281-285
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