A media-oriented transmission mode selection in 802.11 wireless LANs

Mohammad Hossein Manshaei, Thierry Turletti, Marwan Krunz

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

8 Scopus citations

Abstract

In this paper, we present a media-oriented mechanism for selecting the appropriate transmission mode in 802.11-based wireless LANs (WLANs). The main goal of this mechanism is to improve the effective throughput for transporting loss-tolerant multimedia traffic over a WLAN by taking into account both the application characteristics and the physical channel conditions. In particular, the proposed cross-layer mechanism exploits the robustness of multimedia coding by allowing packets with corrupted payloads reach the receiving application. The sending application specifies its quality of service requirements (data rate, BER tolerance, etc.), and the receiver selects the best transmission mode (transmission rate, modulation scheme, FEC scheme) while taking into account the time-varying channel conditions. We discuss the modifications needed for the control and data-packet headers to implement our approach in the framework of the IEEE 802.11 standards. We use ns2 simulations to contrast our scheme with an existing 802.11 rate selection algorithm. The results indicate that the proposed cross-layer approach achieves up to 5 Mbps increase in throughput and 20-meter increase in the coverage range. Furthermore, by disabling FEC from some of the standard transmission modes, we show that the goodput of loss-tolerant applications can be improved significantly.

Original languageEnglish (US)
Title of host publication2004 IEEE Wireless Communications and Networking Conference, WCNC 2004
Pages1228-1233
Number of pages6
StatePublished - Sep 27 2004
Event2004 IEEE Wireless Communications and Networking Conference, WCNC 2004 - Atlanta, GA, United States
Duration: Mar 21 2004Mar 25 2004

Publication series

Name2004 IEEE Wireless Communications and Networking Conference, WCNC 2004
Volume2

Other

Other2004 IEEE Wireless Communications and Networking Conference, WCNC 2004
CountryUnited States
CityAtlanta, GA
Period3/21/043/25/04

Keywords

  • Cross-Layer interactions
  • IEEE 802.11
  • Multirate
  • Wireless LAN

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Manshaei, M. H., Turletti, T., & Krunz, M. (2004). A media-oriented transmission mode selection in 802.11 wireless LANs. In 2004 IEEE Wireless Communications and Networking Conference, WCNC 2004 (pp. 1228-1233). (2004 IEEE Wireless Communications and Networking Conference, WCNC 2004; Vol. 2).