A Novel Wake-Up Radio WSN Mote

Abstract

In this work we describe our novel design of an embedded hardware communication device. The hardware is designed generically, by taking an example of a Zig Bee green radio. Our hardware completely eliminates the problem of idle listening encountered by most "mote" class hardware. Lower layers can assume node synchronization and thus transmit a minimum sized preamble. The circuit has three radios, interconnected with an antenna switch. We use simple but intelligent software to switch between the radios. Since our calculated energy savings when compared to designs without wake-up is significant, the system has the viability to be powered using harvested energy.