A threshold-based channel state feedback algorithm for modern cellular systems

Vegard Hassel*, David Gesbert, Mohamed-Slim Alouini, Geir E. Øien

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

In this paper we propose a channel state feedback algorithm that uses multiple feedback thresholds to reduce the number of users transmitting feedback to a minimum. The users are polled with lower and lower threshold values and only the users that are above a threshold value transmit feedback to the base station. We show how this feedback algorithm can be used for any scheduling algorithm and show how closed-form expressions for the optimal threshold values can be obtained for two well-known scheduling algorithms. Finally, we propose a two-step optimization procedure for optimizing the feedback algorithm for real-life cellular standards.

Original languageEnglish (US)
Pages (from-to)2422-2426
Number of pages5
JournalIEEE Transactions on Wireless Communications
Volume6
Issue number7
DOIs
StatePublished - Jul 1 2007

Keywords

  • Land mobile radio cellular systems
  • Scheduling
  • State feedback

ASJC Scopus subject areas

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

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