Cross-domain Techniques to Enable Power-friendly Wireless Transceivers
Mar 07, 2013
from 11:00 AM to 12:30 PM
|Where||Engr. IV Bldg., Tesla Room 53-125|
|Contact Name||Sam Gharavi|
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Advisor: Babak Daneshrad
With the continuous scaling of CMOS technology, two opposite trends can be observed. First trend is exponential improvement of the digital logic and second trend is linear degradation of the analog and RF components. Traditional methodology for designing analog and RF focuses on optimizing the performance of individual blocks such as analog-to-digital converters, frequency synthesizers, etc. Unfortunately, such traditional approach is limited by the unforgiving power-consumption-performance tradeoffs encountered in the design of each circuit block. As a result, high power consumption of RF and analog has become a major show-stopper for implementation of new communication algorithms.
Alternatively, one can “assist” the underperforming RF and analog blocks using cross-domain (RF-analog-digital) techniques. Such cross-domain approach leads to a significant saving in the power consumption while achieving the desired system performance (e.g. bit-error rate). In particular, we have developed novel, cross-domain techniques to assist the non-ideal function of analog-to-digital converter, frequency synthesizer and phased arrays to enable a power-friendly, mm-wave wireless link.
Sam Gharavi is a PhD candidate in the Wireless Integrated Systems Lab (WISL). His research interests include analog and digital circuits and systems.