Weather forecasting: predicting performance for streaming video over wireless LANs

The growth of wireless LANs has brought the expectation for high-bitrate streaming video to wireless PCs. However, it remains unclear how wireless channel characteristics impact the quality of streaming video sent over wireless LANs. This paper presents results from experiments that stream commercial video over a wireless campus network. By analyzing the streaming video quality and capturing wireless LAN characteristics across network and wireless link layers, “weather forecasts” are created such that selected wireless LAN performance indicators might be used to predict the streaming video quality. Furthermore, a quantified measurement of accuracy is presented to evaluate the effectiveness of individual weather forecasts. The paper evaluates six distinct weather forecasts four different streaming configurations including TCP and UDP streaming, and single and multiple-level encoded videos. The results show that the wireless Received Signal Strength Indicator (RSSI) and average ...

• Type: Conference
• Year: 2005
• Where: NOSSDAV
• Authors: Mingzhe Li, Feng Li, Mark Claypool, Robert E. Kinicki
• Keywords: NOSSDAV 2005, Operating Systems, Streaming Video, Weather Forecast, Wireless Lan