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» Decoding on Graphs: LDPC-Coded MISO Systems and Belief Propa...
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JSAC
1998
126views more  JSAC 1998»
13 years 4 months ago
Iterative Decoding of Compound Codes by Probability Propagation in Graphical Models
Abstract—We present a unified graphical model framework for describing compound codes and deriving iterative decoding algorithms. After reviewing a variety of graphical models (...
Frank R. Kschischang, Brendan J. Frey
JSAC
2008
98views more  JSAC 2008»
13 years 4 months ago
Multiuser Detection of Sparsely Spread CDMA
Code-division multiple access (CDMA) is the basis of a family of advanced air interfaces in current and future generation networks. The benefits promised by CDMA have not been full...
Dongning Guo, Chih-Chun Wang
STOC
2004
ACM
157views Algorithms» more  STOC 2004»
14 years 5 months ago
Derandomizing homomorphism testing in general groups
The main result of this paper is a near-optimal derandomization of the affine homomorphism test of Blum, Luby and Rubinfeld (Journal of Computer and System Sciences, 1993). We sho...
Amir Shpilka, Avi Wigderson