125 citations
- University of California, BerkeleyUS57 papers
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- Carnegie Mellon UniversityUS2 papers
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- CFA InstituteUS2 papers
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- Lawrence Berkeley National LaboratoryUS2 papers
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cs.IT2008
Lower Bounds on the Rate-Distortion Function of LDGM Codes
A. G. Dimakis, M. J. Wainwright, K. Ramchandran
A recent line of work has focused on the use of low-density generator matrix (LDGM) codes for lossy source coding. In this paper, wedevelop a generic technique for deriving lower b…
cs.IT2008
The Case for Structured Random Codes in Network Capacity Theorems
Bobak Nazer, Michael Gastpar
Random coding arguments are the backbone of most channel capacity achievability proofs. In this paper, we show that in their standard form, such arguments are insufficient for prov…