Ultra-Low Power Computing System for Wireless Devices


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Abstract


Wireless battery-powered devices require an active receiver in order to receive and decode incoming messages. An active receiver consumes the majority of the power, limiting the time between battery changes. In many cases, particularly, sensor networks, automatic meter reading, and RFID tags, battery replacement is impossible or inconvenient.  This work describes a hardware and software system, called a software receiver that replaces the active receiver. The software receiver consumes almost no power when not decoding a message. The software receiver increases the lifetime of wireless battery-powered device, to more than that of the average person.
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Keywords


RFID; Active RFID; Radio Frequency; Low Power Security; Sensor Network; Wireless Communications

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