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Joint stc and beamforming based on composite weighting for muilti-user system

  • Zhi Qiang Xing*
  • , Ting Xian Zhou
  • , Wei Xiao Meng
  • *Corresponding author for this work
  • North China University of Technology
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

To overcome the disadvantage of joint space time coding (STC) and beamforming (BF) schemes based on eigenvalue decomposing (EVD) in multi-users interference system, this paper proposes a convolutional composite weighting (CCW) structure, which makes equivalent of transmitting beam into multiplication of two sub-beams with different functions. As an optimized combination between technical superiority of space-time coding and beamforming performance, the structure can achieve the full diversity order of STC, beamforming gain of BF. It can restrain the interference signals by nulling. The simulation results indicate that the proposed CCW structure can significantly enhance the reliability performance and the system capacity.

Original languageEnglish
Pages (from-to)603-607
Number of pages5
JournalNanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and Technology
Volume30
Issue number5
StatePublished - Oct 2006

Keywords

  • Beamforming
  • Composite weighting
  • Multi-users interference
  • Space time coding

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