This white paper addresses the question of which Wi-Fi (802.11) physical layer (PHY) technology best extends the battery life of portable Wi-Fi-enabled devices. The 802.11 packet structure is discussed, as well as the duration of 802.11 packets by modulation scheme. The power consumption of 802.11b and 802.11a/g is discussed, and other considerations are overviewed in the paperÂ’s conclusions.
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