SNR-WPA: an adaptive protocol for mobile 802.11 wireless LANs

M. S. Obaidat, D. G. Green

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

    9 Citations (Scopus)


    This paper presents a method for dynamically setting 802.11 wireless LAN waveforms and transmission power levels based on the wireless channel's signal to noise ratio. Our method, known as Signal-to-Noise Ratio-Waveform Power Adaptation (SNR-WPA), changes the power in discrete steps matched to each of the 802.11 data rate-waveform steps. By matching the power to the spreading symbol rate, our technique maximizes the network throughput while minimizing MAC layer contention. Unlike other power adaptation methods, this method does not increase the Wireless LAN (WLAN) station's overall effective operational range and does not change the minimum-spanning tree used to calculate routing. We found through experimentation that the power adaptation in SNR-WPA yields up to a 30% increase in throughput in a mobile wireless LAN network.

    Original languageEnglish
    Title of host publication2004 IEEE International Conference on Communications; Paris; France; 20 June 2004 through 24 June 2004
    PublisherIEEE, Institute of Electrical and Electronics Engineers
    Number of pages5
    Publication statusPublished - 2004
    EventIEEE International Conference on Communications 2004: Gate to the Global Information Society - Paris, France
    Duration: 20 Jun 200424 Jun 2004 (IEEE Conference Proceedings)


    ConferenceIEEE International Conference on Communications 2004
    Abbreviated titleICC 2004
    OtherThe 2004 International Conference on Communications (ICC 2004) will be held in Paris, France, on 20-24 June 2004. The technical program will feature a unique set of technical symposia disseminating the latest research and development results in communications and networking, and business applications sessions and panels, where industry leaders will address the hottest topics in telecommunications and the future evolutions of this field. In addition, the program will include tutorials and workshops by internationally recognized experts, where engineers can learn about new technologies of their choice. ICC 2004 will thus feature a technical program equally attracting researchers from academia and engineers from industry, network operators, and service providers.
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    • Adaptive Protocols
    • MANETS
    • Performance Evaluation
    • SNR-WPA
    • Waveform Power Adaptation
    • Wireless LANs

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