Shannon-Kotel'nikov mappings in joint source-channel coding
IEEE Transactions on Communications
Hybrid digital-analog coding with bandwidth compression for Gaussian source-channel pairs
IEEE Transactions on Communications
On source transmission over MIMO channels with limited feedback
IEEE Transactions on Signal Processing
Approximate characterizations for the Gaussian broadcasting distortion region
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
Hybrid digital-analog joint source-channel coding for broadcasting correlated Gaussian sources
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
Joint source-channel coding at the application layer for parallel Gaussian sources
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
Multicasting of digital images over erasure broadcast channels using rateless codes
SARNOFF'09 Proceedings of the 32nd international conference on Sarnoff symposium
Distortion minimization in Gaussian layered broadcast coding with successive refinement
IEEE Transactions on Information Theory
Hybrid digital-analog relaying for cooperative transmission over slow fading channels
IEEE Transactions on Information Theory
Asymptotically optimal joint source-channel coding with minimal delay
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Communicating correlated Gaussian sources over Gaussian Z interference channels
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Generalizing capacity: new definitions and capacity theorems for composite channels
IEEE Transactions on Information Theory
SoftCast: clean-slate scalable wireless video
Proceedings of the 2010 ACM workshop on Wireless of the students, by the students, for the students
Comparison of practical feedback algorithms for multiuser MIMO
IEEE Transactions on Communications
Joint source channel coding with side information using hybrid digital analog codes
IEEE Transactions on Information Theory
A linear encoding approach to index assignment in lossy source-channel coding
IEEE Transactions on Information Theory
A cross-layer design for scalable mobile video
MobiCom '11 Proceedings of the 17th annual international conference on Mobile computing and networking
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We consider the problem of transmitting a band-limited Gaussian source on an additive band-limited Gaussian noise channel. The well-known "threshold effect" dictates that the more powerful a code is, the more sensitive it is to the exact knowledge of the channel noise. A code is said to be robust if it is asymptotically optimal for a wide range of channel noise. Thus, robust codes have a "graceful degradation" characteristic and are free of the threshold effect. It is demonstrated that robust codes exist whenever the source and channel bandwidths are equal. In the unequal-bandwidth case, a collection of nearly robust joint source-channel codes is constructed using a hybrid digital-analog (HDA) coding technique. For designing nearly robust codes, a matched tandem code whose channel encoder's output is partially/fully matched to its input is proposed and the existence of an asymptotically optimal matched tandem code is shown. The nearly robust codes achieve the Shannon limit (theoretically optimum distortion) and have a less severe threshold effect. Finally, for the case of two different noise conditions, the distortion regions of these codes are determined