Mixed TUSC and band AMC permutation zone in OFDMA systems with limited feedback

I. Gutiérrez, J. L. Pijoan, F. Bader

Research output: Book chapterConference contributionpeer-review

1 Citation (Scopus)

Abstract

In this paper a new permutation zone which combines adjacent and distributed subcarrier permutation is proposed for Orthogonal Frequency Division Multiple Access (OFDMA) systems. For such purpose two types of burst are defined: localized and distributed. A new resource allocation and scheduling algorithm that exploits such structure is then proposed. Furthermore, the effects of limited feedback are also investigated where only the n-best subchannel quality metrics are feedback. As shown in the simulation results, a tradeoff between spectral efficiency, delay and load signaling requirements is obtained which can be adjusted by modifying the number of subchannels signaled in the uplink. Additionally, the proposed scheme turns out to be a very efficient way to increase the system fairness and therefore improving the quality of service.

Original languageEnglish
Title of host publicationVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
DOIs
Publication statusPublished - 2009
EventVTC Spring 2009 - IEEE 69th Vehicular Technology Conference - Barcelona, Spain
Duration: 26 Apr 200929 Apr 2009

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

ConferenceVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
Country/TerritorySpain
CityBarcelona
Period26/04/0929/04/09

Keywords

  • AMC
  • Limited feedback
  • Ofdma
  • Resource allocation
  • Scheduling
  • WiMAX

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