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  • Research Article
  • Open Access

Cross-Layer Measurement on an IEEE 802.11g Wireless Network Supporting MPEG-2 Video Streaming Applications in the Presence of Interference

  • 1,
  • 1Email author and
  • 2
EURASIP Journal on Wireless Communications and Networking20102010:620832

https://doi.org/10.1155/2010/620832

  • Received: 29 May 2009
  • Accepted: 21 January 2010
  • Published:

Abstract

The performance of wireless local area networks supporting video streaming applications, based on MPEG-2 video codec, in the presence of interference is here dealt with. IEEE 802.11g standard wireless networks, that do not support QoS in according with IEEE 802.11e standard, are, in particular, accounted for and Bluetooth signals, additive white Gaussian noise, and competitive data traffic are considered as sources of interference. The goal is twofold: from one side, experimentally assessing and correlating the values that some performance metrics assume at the same time at different layers of an IEEE 802.11g WLAN delivering video streaming in the presence of in-channel interference; from the other side, deducing helpful and practical hints for designers and technicians, in order to efficiently assess and enhance the performance of an IEEE 802.11g WLAN supporting video streaming in some suitable setup conditions and in the presence of interference. To this purpose, an experimental analysis is planned following a cross-layer measurement approach, and a proper testbed within a semianechoic chamber is used. Valuable results are obtained in terms of signal-to-interference ratio, packet loss ratio, jitter, video quality, and interference data rate; helpful hints for designers and technicians are finally gained.

Keywords

  • Packet Loss
  • Additive White Gaussian Noise
  • Video Quality
  • Wireless Local Area Network
  • Video Streaming

Publisher note

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Authors’ Affiliations

(1)
Department of Computer Science and Control Systems, University of Naples Federico II, Via Claudio 21, 80125 Naples, Italy
(2)
Department of Information Engineering, University of Padua, Via G. Gradenigo, 6–35131 Padua, Italy

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