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SUMMARY:Using random linear network coding in dynamic storage environments
  - Prof. Muriel Medard\, Department of EECS\, MIT
DTSTART:20150216T140000Z
DTEND:20150216T150000Z
UID:TALK57209@talks.cam.ac.uk
CONTACT:Prof. Ramji Venkataramanan
DESCRIPTION:While structured coding has been extensively considered for da
 ta repair in static networks\, such approaches seem ill-suited to current 
 clouds\, which exhibit dynamic topologies and demands. We first demonstrat
 e\, through benchmarking\, that random network coding can provide speeds t
 hat outperform\, in terms of encoding and decoding throughput\, commercial
  systems using structured codes. We then present two case studies.  We fir
 st considers a distributed storage system with full failure or with interm
 ittent availability of nodes. We show that random coding far outstrips\, i
 n terms of availability\, uncoded duplication. This advantage is increased
  when content is regenerated at nodes from partial content from other node
 s\, in which case random linear network coding also outperforms common str
 uctured maximum-distance separable codes. The second case study illustrate
 s how coding can be used to manage hybrid managed content distribution net
 works with peer-to-peer edge clouds\, such as are currently being proposed
  to augment edge caching\, when bandwidth availability may be variable. \n
 \nJoint work with Hassan Charaf\, Flavio du Pin Calmon\, Frank Fitzek\, Ja
 nus Heide\, Daniel Lucani\, Morten Pedersen\, Martin Sipos\, Aron Szabados
 \, Tamas Toth\, Peter Vingelmann\, Weifei Zeng.\n\n\n*BIO*: Muriel Médard
  is the Cecil H. Green Professor in the Electrical Engineering and Compute
 r Science Department at MIT. She has served as editor for many IEEE public
 ations and she is currently Editor in Chief of the IEEE Journal on Selecte
 d Areas in Communications   She was President  IEEE Information Theory Soc
 iety in 2012. She has served as TPC co-chair of ISIT\, WiOpt\, CONEXT\, an
 d Netcod\, and co-chair of ISIT and Netcod.  She was awarded the 2009 Comm
 unication Society and Information Theory Society Joint Paper Award\, the 2
 009 William R. Bennett Prize in the Field of Communications Networking\, t
 he 2002 IEEE Leon K. Kirchmayer Prize Paper Award and several conference p
 aper awards. She was co-winner of the MIT 2004 Harold E. Edgerton Faculty 
 Achievement Award. In 2007 she was named a Gilbreth Lecturer by the U.S. N
 ational Academy of Engineering. She received the 2013 MIT Graduate Student
  Council EECS Mentor Award. In 2014 she was named by Thomson Reuters one o
 f the World’s Most Influential Scientific Minds.
LOCATION:LR5\, Cambridge University Engineering Department
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