Simplified WLAN (WiFi) Power States

General Current/Power consumption relationships: OFF < ON Waiting to Connect < Trying to Connect (e.g. ACTIVE SCAN)  No User Data < Data VoIP data < File transfer data 802.11 Power Save Mode << Active Mode   The key to power savings is QUICKLY MOVING TO MOST RELIABLE LOW POWER STATE. Specifically, when associated the use…

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802.11 WLAN WiFi : Power Mini FAQ – Windows CE

Mini Frequently Asked Questions related to WLAN, Power, and Windows CE. Why is it important? WLAN can use significantly more power than other wireless technologies. For this higer battery consumption, you may get much higher performance. WLAN is not inherently poorer performer with regard to power; many times it is the use case that needs to…

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802.11 WLAN WiFi Power Golden Rule: Minimize Duty Cycle

IEEE 802.11 WLAN, a.k.a. WiFi, is a dynamic technology being added to a number of CE devices. Increasingly, these devices are battery powered. Under these circumstances driver developers have to trade-off between POWER and PERFORMANCE. Making the wrong assumptions lead to horrible battery life, poor performance, or both! Q: How should a developer/ODM/system integrator optimize…

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