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Resource allocation with reducing uplink CQI feedback in OFDMA

  • Wei Lin Jiang*
  • , Zhong Zhao Zhang
  • , Xue Jun Sha
  • , Li Nan Sun
  • *Corresponding author for this work
  • School of Electronics and Information Engineering, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

According to the features that uplink CQI feedback is high and not fair enough in OFDMA system, the reducing feedback resource allocation algorithm is proposed. Users in the cell center with higher SNR do not need feedback CQI, and users in the cell edge with lower SNR adopt 1 B feedback when the load is low while the Best-M is adopted and the load is heavy. Meanwhile, according to the Best-M project, the first user preference is proposed. On the premise of ensuring the necessary feedback information of resource allocation, the proposed algorithm trades off between complexity and performance, and meets the users' fairness.

Original languageEnglish
Pages (from-to)36-39
Number of pages4
JournalHarbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
Volume44
Issue number5
StatePublished - May 2012
Externally publishedYes

Keywords

  • Channel quality information
  • Feedback
  • OFDMA
  • Waterfilling

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