Aubin LECOINTRE, Daniela DRAGOMIRESCU, Robert PLANA
Design and Hardware Implementation of a Reconfigurable Mostly Digital IR-UWB
Abstract. This paper addresses the problem of radio interface in Wireless
Sensor Network (WSN). We study the specific constraints of WSN and we expose
how, by using a reconfigurable mostly digital IR-UWB radio, we can solve this
problem. WSN context implies constraints such as low power, low cost, small size
and simplicity on the radio layer. We present the reconfigurability as a
solution to the large diversity of WSN applications. Dynamic reconfigurability
is implemented over an IR-UWB radio interface. A two level development is
exposed, based on system architecture modelling and hardware implementation.
This design flow permits to obtain a reconfigurable IR-UWB transceiver on an
ASIC/FPGA implementation. The proposed solution allows data rate, spectrum, and
radio range reconfigurability.
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