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Multiuser diversity with capture in OFDMA systems with clustered feedback

Conference Paper


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Abstract


  • In this paper, we propose a cluster-based feedback

    protocol for multiuser orthogonal frequency-division multipleaccess

    (OFDMA) systems, where the capture effect is employed in

    each cluster to reduce the enormous system overhead induced by

    polling channel-state information. Then, we analyze the system

    throughput performance of the proposed feedback protocol.

    Compared with the full feedback scheme in the literature,

    numerical simulations show that the proposed protocol with

    clustered feedback in OFDMA systems achieves higher system

    throughput by employing the capture effect with limited feedback

    overhead, when the number of users is reasonably large. Moreover,

    compared with our previous protocol of Multiuser Diversity

    with Capture, the proposed one additionally exploits multiuser

    diversity in the frequency domain, thereby achieving better

    throughput performance as shown by the simulation results.

UOW Authors


  •   Li, Hang (external author)
  •   Guo, Qinghua
  •   Fang, Licai (external author)
  •   Huang, Defeng (David) (external author)

Publication Date


  • 2012

Citation


  • H. Li, Q. Guo, L. Fang & D. Huang, "Multiuser diversity with capture in OFDMA systems with clustered feedback," in International Conference on Wireless Communications and Signal Processing, 2012, pp. 1-5.

Scopus Eid


  • 2-s2.0-84881041815

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1748&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/742

Start Page


  • 1

End Page


  • 5

Place Of Publication


  • Australia

Abstract


  • In this paper, we propose a cluster-based feedback

    protocol for multiuser orthogonal frequency-division multipleaccess

    (OFDMA) systems, where the capture effect is employed in

    each cluster to reduce the enormous system overhead induced by

    polling channel-state information. Then, we analyze the system

    throughput performance of the proposed feedback protocol.

    Compared with the full feedback scheme in the literature,

    numerical simulations show that the proposed protocol with

    clustered feedback in OFDMA systems achieves higher system

    throughput by employing the capture effect with limited feedback

    overhead, when the number of users is reasonably large. Moreover,

    compared with our previous protocol of Multiuser Diversity

    with Capture, the proposed one additionally exploits multiuser

    diversity in the frequency domain, thereby achieving better

    throughput performance as shown by the simulation results.

UOW Authors


  •   Li, Hang (external author)
  •   Guo, Qinghua
  •   Fang, Licai (external author)
  •   Huang, Defeng (David) (external author)

Publication Date


  • 2012

Citation


  • H. Li, Q. Guo, L. Fang & D. Huang, "Multiuser diversity with capture in OFDMA systems with clustered feedback," in International Conference on Wireless Communications and Signal Processing, 2012, pp. 1-5.

Scopus Eid


  • 2-s2.0-84881041815

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1748&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/742

Start Page


  • 1

End Page


  • 5

Place Of Publication


  • Australia