Multiuser diversity-enhanced equal access with quantized feedback in multicarrier OFDM systems

Yahya Al-Harthi, Ahmed Tewfik, Mohamed Slim Alouini

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

9 Scopus citations

Abstract

Orthogonal frequency division multiplexing (OFDM) is emerging as a key modulation scheme for future high speed packets based wireless transmission systems. In a wireless multiuser network system, when an opportunistic scheduling is employed in the OFDM system with adaptive modulation, it may encounter implementation problems due to the need for a large amount of channel information. In this paper, we adopt an idea that we proposed in [1] called discrete rate switch-based multi-user diversity system (DSMUDiv) and combine it with the idea of Enhanced Equal Access scheduling policy that was proposed in [2] to reduces the feedback load and guarantee high probability of access for each user while maintaining most of the performance of opportunistic scheduling. We present an analytical analysis of the feedback load, spectral efficiency and probability of access of the proposed scheme.

Original languageEnglish (US)
Title of host publicationVTC 2005-Fall
Subtitle of host publicationMid Way Through the Decade - Technology Past, Present and Future
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages568-572
Number of pages5
Volume1
ISBN (Electronic)0780391527
DOIs
StatePublished - 2005
Externally publishedYes
Event62nd Vehicular Technology Conference, VTC 2005 - Dallas, United States
Duration: Sep 25 2005Sep 28 2005

Other

Other62nd Vehicular Technology Conference, VTC 2005
CountryUnited States
CityDallas
Period09/25/0509/28/05

ASJC Scopus subject areas

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

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