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ISCAS
2008
IEEE

Ultra-low-power UWB for sensor network applications

11 years 8 months ago
Ultra-low-power UWB for sensor network applications
— Long distance, low data-rate UWB communication for sensor network applications requires a highly energy efficient transceiver combined with circuit and system-level optimizations to maximize range. A custom pulsed-UWB transceiver chipset in 90nm CMOS is presented that targets these aggressive specifications. The transceiver efficiently communicates at data rates from 0-to-16.7Mbps in three 550MHz-wide channels in the 3.1 to 5GHz band by using pulse position modulation (PPM). The transmitter uses an all-digital architecture and calibration technique to synthesize pulses with programmable width and center frequency. The non-coherent receiver operates at 0.65V and performs channel selection filtering, energy detection, and bit-slicing. As FCC regulations limit the maximum transmit power of UWB communication, a run-length limiting technique is presented to reduce energy requirements when maximizing range at low data rates.
Patrick P. Mercier, Denis C. Daly, Manish Bhardwaj
Added 31 May 2010
Updated 31 May 2010
Type Conference
Year 2008
Where ISCAS
Authors Patrick P. Mercier, Denis C. Daly, Manish Bhardwaj, David D. Wentzloff, Fred S. Lee, Anantha P. Chandrakasan
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