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WLAN power saving using packet overhearing reduction
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DOI：10.1007/s11235-014-9951-y.png)
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Abstract
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The power consumption is important in wireless communication as many devices are battery powered. We focus on this area and propose a method to reduce WLAN device power consumption, particularly on WiFi according to standard 802.11. The proposed method defines a new PHY state that consumes less power than the active states but can switch back fast to an active state. The PHY switches to this state during part of an overheard packet. No change is required to the WLAN protocol or any other device in the network, allowing for full compatibility with the existing devices. The performance analysis is done both analytically and by simulation. It shows that it is possible to reduce average power consumption by up to 30 %.
Keywords:
WLAN
Power consumption
Overhearing
Receiver
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