Proceedings of the ASP-DAC 2005. Asia and South Pacific Design Automation Conference, 2005. · 2005 · 22 citations · 9 references
EngineeringComputer EngineeringComputer ScienceComputer NetworksEmbedded SystemsWireless CommunicationsEnergy-efficient Embedded SystemsEnergy-efficient Mobile ComputingPower ControlPower ManagementPower OptimizationWireless NetworksEnergy-efficient CommunicationLow-power Wireless CommunicationNetwork Interface CardsNetwork Interface DesignNetworked Embedded SystemsPagingPower ConsumptionSleep Mode Optimization
The power consumption of the network interface plays a major role in determining the total operating lifetime of wireless networked embedded systems. In case of on-demand paging, a low power secondary radio is used to wake up the higher power radio, allowing the latter to sleep for longer periods of time. In this paper we present use of Bluetooth radios to serve as a paging channel for the 802.11b wireless LAN. We have implemented an on-demand paging scheme on an infrastructure based WLAN consisting of iPAQ PDAs equipped with Bluetooth radios and Cisco Aironet wireless networking cards. Our results show power saving ranging from 23% to 48% over the present 802.11b standard operating modes with negligible impact on performance.
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