Practical and efficient open-loop rate/link adaptation algorithm for high-speed IEEE 802.11n WLANs

Qiuyan Xia, Jian Pu, Mounir Hamdi, Khaled Ben Letaief

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, we propose a new open-loop rate/link adaptation algorithm (ARFHT) for the emerging high-speed IEEE 802.11n WLANs. ARFHT extends the legacy rate adaptation algorithms for SISO WLANs to make it applicable in the context of MIMO-based 802.11n WLANs. It adapts the MIMO mode in terms of spatial multiplexing and spatial diversity, the two fundamental characteristics of the 802.11n MIMO PHY. It also modifies the link estimation and probing behavior of legacy SISO algorithms. The combined adaptation to the appropriate MIMO mode as well as the appropriate modulation coding scheme selection achieves high channel utilization. In this paper, we provide the intuition and the design details of the ARFHT algorithm. A comprehensive simulation study using ns-2 will demonstrate that ARFHT achieves excellent throughput performance in most scenarios and is highly responsive to varying link conditions, with minimum overhead.

Original languageEnglish
Title of host publicationIEEE Symposium on Computers and Communications 2009, ISCC 2009
Pages661-666
Number of pages6
DOIs
Publication statusPublished - 19 Nov 2009
EventIEEE Symposium on Computers and Communications 2009, ISCC 2009 - Sousse, Tunisia
Duration: 5 Jul 20098 Jul 2009

Publication series

NameProceedings - IEEE Symposium on Computers and Communications
ISSN (Print)1530-1346

Other

OtherIEEE Symposium on Computers and Communications 2009, ISCC 2009
CountryTunisia
CitySousse
Period5/7/098/7/09

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ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Mathematics(all)
  • Computer Science Applications
  • Computer Networks and Communications

Cite this

Xia, Q., Pu, J., Hamdi, M., & Letaief, K. B. (2009). Practical and efficient open-loop rate/link adaptation algorithm for high-speed IEEE 802.11n WLANs. In IEEE Symposium on Computers and Communications 2009, ISCC 2009 (pp. 661-666). [5202283] (Proceedings - IEEE Symposium on Computers and Communications). https://doi.org/10.1109/ISCC.2009.5202283