G. Bai and C. Williamson (Canada)
Multimedia, Wireless Networks, Network Traffic Measure ment, IEEE 802.11b WLANs
This paper presents experimental measurements of MPEG 4 media streaming performance in an IEEE 802.11b WLAN environment, using a Darwin streaming server, sev eral wireless clients, and a wireless network analyzer. We first study streaming performance in a simple scenario with no client mobility, and then demonstrate the impacts of user mobility on both network-level and user-level performance. Our results show that media streaming performance can de grade significantly in the presence of user mobility. Fur thermore, the performance degradation affects all clients, not just those who are mobile.
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