Compressed CSI acquisition in FDD massive MIMO with partial support information

Juei Chin Shen, Jun Zhang, Emad Alsusa, Khaled Letaief

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

5 Citations (Scopus)

Abstract

Massive MIMO is a promising technique to provide unprecedented spectral efficiency. However, it has been well recognized that huge training overhead for obtaining channel side information (CSI) is a major handicap in frequency-division duplexing (FDD) massive MIMO. Several attempts have been made to reduce this training overhead by exploiting sparse structures of massive MIMO channels. So far, however, there has been little discussion about how to utilize partial support information of sparse channels to achieve further overhead reduction. This support information, which is a set of indexes of significant elements of a channel vector, actually can be acquired in advance. In this paper, we examine the required training overhead when partial support information is applied within a weighted ℓ1 minimization framework and analytically show that a sharp estimate of this overhead size can be successfully obtained. Furthermore, we demonstrate that the accuracy of partial support information plays an important role in determining how much reduction can be achieved. Numerical results shall verify the main conclusions.

Original languageEnglish
Title of host publication2015 IEEE International Conference on Communications, ICC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1459-1464
Number of pages6
Volume2015-September
ISBN (Electronic)9781467364324
DOIs
Publication statusPublished - 9 Sep 2015
Externally publishedYes
EventIEEE International Conference on Communications, ICC 2015 - London, United Kingdom
Duration: 8 Jun 201512 Jun 2015

Other

OtherIEEE International Conference on Communications, ICC 2015
CountryUnited Kingdom
CityLondon
Period8/6/1512/6/15

Fingerprint

MIMO systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Shen, J. C., Zhang, J., Alsusa, E., & Letaief, K. (2015). Compressed CSI acquisition in FDD massive MIMO with partial support information. In 2015 IEEE International Conference on Communications, ICC 2015 (Vol. 2015-September, pp. 1459-1464). [7248529] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.2015.7248529

Compressed CSI acquisition in FDD massive MIMO with partial support information. / Shen, Juei Chin; Zhang, Jun; Alsusa, Emad; Letaief, Khaled.

2015 IEEE International Conference on Communications, ICC 2015. Vol. 2015-September Institute of Electrical and Electronics Engineers Inc., 2015. p. 1459-1464 7248529.

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

Shen, JC, Zhang, J, Alsusa, E & Letaief, K 2015, Compressed CSI acquisition in FDD massive MIMO with partial support information. in 2015 IEEE International Conference on Communications, ICC 2015. vol. 2015-September, 7248529, Institute of Electrical and Electronics Engineers Inc., pp. 1459-1464, IEEE International Conference on Communications, ICC 2015, London, United Kingdom, 8/6/15. https://doi.org/10.1109/ICC.2015.7248529
Shen JC, Zhang J, Alsusa E, Letaief K. Compressed CSI acquisition in FDD massive MIMO with partial support information. In 2015 IEEE International Conference on Communications, ICC 2015. Vol. 2015-September. Institute of Electrical and Electronics Engineers Inc. 2015. p. 1459-1464. 7248529 https://doi.org/10.1109/ICC.2015.7248529
Shen, Juei Chin ; Zhang, Jun ; Alsusa, Emad ; Letaief, Khaled. / Compressed CSI acquisition in FDD massive MIMO with partial support information. 2015 IEEE International Conference on Communications, ICC 2015. Vol. 2015-September Institute of Electrical and Electronics Engineers Inc., 2015. pp. 1459-1464
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