Coordinated multi-cell MU-MIMO downlink transmission with adaptive beam deactivation

Jin Hee Lee, Young Chai Ko, Seyeong Choi, Hong Chuan Yang, Sungjin Kim

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

1 Citation (Scopus)

Abstract

In this paper, we propose an adaptive beam deactivation scheme for the coordinated multi-cell multiuser multiple-input multiple-output (MU-MIMO) downlink system with limited feedback. In the proposed scheme, each user feeds back the indices of a desired beam and multiple undesired beams from its codebook and some channel quality indicators to its base station (BS). Based on the feedback information and the proposed transmitting user set selection algorithm, the coordinating BSs select one user for each BS to serve. Through the numerical example, we show that the proposed scheme achieves comparable sum rate gain compared to the conventional zeroforcing based coordinated multi-cell system with reduced feedback load.

Original languageEnglish
Title of host publication2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011
Pages199-203
Number of pages5
DOIs
Publication statusPublished - 2011 Dec 28
Event2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011 - Shanghai, China
Duration: 2011 Oct 102011 Oct 12

Publication series

NameInternational Conference on Wireless and Mobile Computing, Networking and Communications
ISSN (Print)2161-9646
ISSN (Electronic)2161-9654

Other

Other2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011
CountryChina
CityShanghai
Period11/10/1011/10/12

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Keywords

  • Multi-cell wireless system
  • adaptive beam deactivation
  • cell cooperation
  • inter-cell interference
  • zeroforcing beamforming

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

Cite this

Lee, J. H., Ko, Y. C., Choi, S., Yang, H. C., & Kim, S. (2011). Coordinated multi-cell MU-MIMO downlink transmission with adaptive beam deactivation. In 2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011 (pp. 199-203). [6085404] (International Conference on Wireless and Mobile Computing, Networking and Communications). https://doi.org/10.1109/WiMOB.2011.6085404