| Publisher | University of Pisa | ||
|---|---|---|---|
| Format | 200.1KB PDF | Date added | 11 Jan 2009 |
| Topics | Wi-Fi (802.11), Mobile - Wireless Communications, TCP - IP | ||
| Downloads | 153 | ||
Wi-Fi hotspots are becoming very popular. Due to limited costs, they are an effective solution to provide wireless Internet access to nomadic users. A key point to exploit the potentialities of Wi-Fi hotspots is managing the scarce energetic resources of mobile devices. To this end, the IEEE 802.11 standard defines a Power-Saving Mode aimed at reducing the energy consumption due to networking activities. This paper provides an analytical model of this algorithm. The results reported show that, in a standard TCP/IP architecture, the 802.11 PSM scales quite well with respect to the number of users inside the hotspot.
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