Multimode random beamforming for multiuser downlink MIMO system with limited feedback

Hyukjin Chae, Yohan Kim, Jang Hoon Yang, Bin Chul Ihm, Dong Ku Kim

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

3 Citations (Scopus)

Abstract

Multimode transmission has been studied to improve BER and outage capacity in the point-to-point system. In this paper, we consider the multimode transmission for downlink MIMO based on random beamforming(RBF) with limited feedback. We propose four heuristic mode selection and feedback policies to improve the sum rate and outage performance of downlink RBF system based on two approaches: distributed and centralized. Simulation results show that the centralized mode selection scheme with reasonable feedback amount provides waterfilling effect as well as the multiuser diversity gain, leading to the performance improvement of RBF in terms of sum rate and outage probability.

Original languageEnglish
Title of host publication2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Pages837-841
Number of pages5
DOIs
Publication statusPublished - 2008 Jul 28
Event2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, Singapore
Duration: 2008 May 112008 May 14

Other

Other2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
CountrySingapore
CityMarina Bay
Period08/5/1108/5/14

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All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Chae, H., Kim, Y., Yang, J. H., Ihm, B. C., & Kim, D. K. (2008). Multimode random beamforming for multiuser downlink MIMO system with limited feedback. In 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC (pp. 837-841). [4525738] https://doi.org/10.1109/VETECS.2008.182