Efficient downlink cooperative multi-cell transmission for MU-MIMO system

Zhijia Liu, Zesong Fei*, Jingming Kuang

*Corresponding author for this work

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

Abstract

Cooperative communication technology has been widely studied in recent years due to providing higher resource utilization and more reliable communication. In this work, we consider a downlink multi-user multi-input-multi-output (MU-MIMO) system with cooperative multi-cell transmission. Assuming that the channel state information are available at cell and user, we propose a simple user scheduling algorithm which can achieve the multi-user diversity gain and a power allocation scheme that subject to the total transmission power constrains so that it can more efficiently utilize the system resource and suppress the co-channel interference for the target user equipment. Theoretical analysis and Monte Carlo simulation results show that the transmission sum-rate of the proposed scheme is higher than the traditional single-cell or multi-cell transmission for single user. Additionally, performance of the edge user will also be improved when using the proposed scheme.

Original languageEnglish
Title of host publication2010 5th International ICST Conference on Communications and Networking in China, ChinaCom 2010
PublisherIEEE Computer Society
ISBN (Print)9780984589333
DOIs
Publication statusPublished - 2010

Publication series

Name2010 5th International ICST Conference on Communications and Networking in China, ChinaCom 2010

Keywords

  • Cooperative multi-cell
  • MU-MIMO
  • Maximal-ratio-combining (MRC)
  • Scheduling

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