MU-MIMO precoding for VLC with imperfect CSI

Hanaa Marshoud, Diana Dawoud, Vasileios M. Kapinas, George K. Karagiannidis, Sami Muhaidat, Bayan Sharif

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

44 Scopus citations

Abstract

This paper investigates the performance of different precoding schemes for a multi-user MIMO VLC system with channel estimation errors, an assumption that is commonly neglected in the literature. In particular, dirty paper coding, channel inversion, and block diagonalization, are considered for interference mitigation under imperfect channel state information. The impact of the variation of the beam angles of the transmitters and the field of view (FOV) of the receivers on the system performance is also examined. Simulation results reveal that, dirty paper coding provides the best performance under perfect channel state information (CSI). However, under imperfect CSI, suboptimal linear precoding schemes will give better performance. Furthermore, tuning the transmitting angles and the FOVs can significantly improve the system performance.

Original languageBritish English
Title of host publication2015 4th International Workshop on Optical Wireless Communications, IWOW 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages93-97
Number of pages5
ISBN (Electronic)9781467377263
DOIs
StatePublished - 30 Nov 2015
Event4th International Workshop on Optical Wireless Communications, IWOW 2015 - Istanbul, Turkey
Duration: 7 Sep 201510 Sep 2015

Publication series

Name2015 4th International Workshop on Optical Wireless Communications, IWOW 2015

Conference

Conference4th International Workshop on Optical Wireless Communications, IWOW 2015
Country/TerritoryTurkey
CityIstanbul
Period7/09/1510/09/15

Keywords

  • Block diagonalization
  • channel inversion
  • dirty paper
  • optical wireless communication
  • precoding
  • visible light communication

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