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UID:www.tcs.tifr.res.in/event/393
DTSTAMP:20230914T125922Z
SUMMARY:Fundamental Limits on Communication Energy Via "Information-frictio
 n"
DESCRIPTION:Speaker: Pulkit Grover (Carnegie Mellon University\nElectrical 
 and Computer Engineering\n5000 Forbes Avenue\nPittsburgy\, PA 15213-3890\n
 United States of America)\n\nAbstract: \nJust as there are frictional loss
 es in moving a weight on a surface\, there are also frictional losses in m
 oving information on a substrate. This "information-friction" has received
  little attention within both theoretical computer science and information
  theory. But it is important in both! I will discuss our work at the inter
 section of both fields: information-frictional losses in the circuitry at 
 the transmitter and the receiver of a communication system.\n\nFrom a theo
 retical perspective\, I will show how accounting for these losses leads to
  a novel understanding of *total* energy consumed in a communication syste
 m that goes beyond the transmit-power-centric Shannon theory. For instance
 \, we show that approaching the Shannon-limit on transmit power is fundame
 ntally accompanied with increasing amounts of power in the encoding/decodi
 ng circuitry (in both circuit gates and circuit wires). Thus the total-pow
 er-minimizing strategies must operate far from the Shannon limit.\n\nFrom 
 a practical perspective\, our early results -- that rely on circuit simula
 tions for power consumption estimation -- show that novel total-power-opti
 mizing strategies can lead to substantial power reductions in short-distan
 ce communication systems. I will discuss our work on two applications (i) 
 millimeter wave wireless\; and (ii) data-center Ethernet.\n\nBio: Pulkit G
 rover (Ph.D. UC Berkeley'10\, B.Tech.'03\, M.Tech.'05 IIT Kanpur) is an as
 sistant professor at CMU. He is interested in interdisciplinary research d
 irected towards developing a science of information for making decentraliz
 ed systems (from low-power communication systems to large control systems)
  energy-efficient and stable. He is the recipient of the best student pape
 r award at the IEEE Conference in Decision and Control (CDC) 2010\; and th
 e 2012 Leonard G. Abraham best paper award from the IEEE Communications So
 ciety for his work on energy-efficient communication. For his dissertation
  research\, he received the 2011 Eli Jury Award from the Department of EEC
 S at UC Berkeley.\n
URL:https://www.tcs.tifr.res.in/web/events/393
DTSTART;TZID=Asia/Kolkata:20130816T140000
DTEND;TZID=Asia/Kolkata:20130816T150000
LOCATION:AG-69
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