Precoding for multicell massive MIMO systems with compressive rank-q channel approximation

Sinh Le Hong Nguyen, Ali Ghrayeb

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

11 Citations (Scopus)

Abstract

In non-cooperative multicell massive (or very large) multiple-input multiple-output (MIMO) systems, the pilot contamination effect in the uplink channel training and the intercell interference in the downlink severely degrade the overall network achievable rates. In this paper, we present a framework to mitigate those effects. Specifically, we propose in the uplink training a rank-q channel approximation method based on compressive sensing (CS) to estimate the most dominant singular subspaces of the global multicell MIMO channel matrix with a modest training length. Then, the estimate of the global channel information is used to design an intercell-interference-aware (IA) zero-forcing (ZF) multicell precoding method in the downlink to mitigate not only the intracell interference but also the intercell interference of the channel. The results obtained using the proposed scheme show a significant improvement in the achievable rates for all users in the cells, particularly the cell-edge users, as compared to the existing channel estimation and precoding methods.

Original languageEnglish
Title of host publication2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
Pages1227-1232
Number of pages6
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 - London, United Kingdom
Duration: 8 Sep 201311 Sep 2013

Other

Other2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
CountryUnited Kingdom
CityLondon
Period8/9/1311/9/13

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Keywords

  • Compressive sensing
  • Low-rank matrix approximation
  • Multicell massive MIMO
  • Pilot contamination
  • Zero-forcing precoding

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Nguyen, S. L. H., & Ghrayeb, A. (2013). Precoding for multicell massive MIMO systems with compressive rank-q channel approximation. In 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 (pp. 1227-1232). [6666326] https://doi.org/10.1109/PIMRC.2013.6666326