Frame delay, loss rate and throughput analysis for video applications over time correlated 802.11a/g channels

Victoria Sgardoni, Pierre L Ferre, Angela Doufexi, Andrew R Nix, David Bull

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

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Abstract

This paper presents simulation results for the transmission of unicast MAC frames over 802.11a/g. Fading channel models at various Doppler spreads are developed to generate time-correlated SNR waveforms. These are used in a bit accurate MAC/PHY simulator to estimate frame loss rate, transmission delay, jitter and throughput for a steady flow of transmit frames. Time-correlated channels are required to correctly simulate the bursty nature of packet loss in a wireless channel. The Doppler spread is shown to have a strong effect on the performance of 802.11 ARQ at the MAC layer. Compared to the slow fading case, in a fast fading channel fewer MAC layer retransmissions are required and the end-to-end delay is significantly reduced. Under poor channel conditions the simulated delay and frame loss rate are seriously underestimated if time-uncorrelated fading is assumed.
Translated title of the contributionFrame Delay, Loss Rate and Throughput Analysis for Video Applications over time correlated 802.11a/g channels
Original languageEnglish
Title of host publicationIEEE International Conference on Signal Processing and Communications, 2007, ICSPC 2007
Place of PublicationDubai
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages408 - 411
Number of pages4
ISBN (Print)9781424412358
DOIs
Publication statusPublished - 24 Nov 2007
EventInternational Conference on Signal Processing and Communications - Dubai, United Arab Emirates
Duration: 1 Nov 2007 → …

Conference

ConferenceInternational Conference on Signal Processing and Communications
CountryUnited Arab Emirates
CityDubai
Period1/11/07 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: This work was partly funded by the Department of Trade and
Industry (DTI UK), Technology Programme project,
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Keywords

  • WLAN IEEE 802.11a/g
  • ARQ
  • multimedia communication
  • video streaming
  • MAC
  • fading channels
  • QoS

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