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PhD Oral Preliminary Examination – Saeed Pourbagheri


Wednesday, May 30, 2012 10:00 AM - 12:00 PM

Energy-Efficient Energy Detection Receiver for Wireless Sensor Networks
on-coherent ED IR-UWB is a promising communication technique for low data rate and low complexity short-range wireless sensor network (WSN) applications. Aggressive duty cycling along with a simple baseband architecture of the IRUWB makes it a desirable technique for an energy efficient implementation. Further improvement in energy efficiency can be achieved by lowering the power consumed in the receiver circuitry and by low power architectural innovations.

In this work, we propose a new energy detection receiver that alleviates the gain stage noise. This reduced noise power is utilized to relax the noise requirement of the LNA. A mathematical analysis of the conventional and the proposed non-coherent ED receivers is presented. The system architecture of the overall receiver and the design of various blocks are described. The measurement results of a prototype test chip implemented in a 130 nm CMOS technology is provided.

Major Advisor: Karti Mayaram
Committee: Terri Fiez
Committee: Pavan Hanumolu
Committee: Huaping Liu
GCR: Alex Greaney


Kelley Engineering Center (campus map)
1007
Shannon Thompson
1 541 737 7234
shannon.thompson at oregonstate.edu
Sch Elect Engr/Comp Sci
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