TY - JOUR
T1 - Joint Source-Channel Coding with Feedback
AU - Kostina, Victoria
AU - Polyanskiy, Yury
AU - Verdú, Sergio
N1 - Funding Information:
This work was supported in part by the National Science Foundation (NSF) under Grant CCF-1016625, in part by the NSF CAREER Award under Grant CCF-1253205, and in part by the Center for Science of Information, an NSF Science and Technology Center, under Grant CCF-0939370.
Funding Information:
Manuscript received February 18, 2015; revised September 9, 2016; accepted December 3, 2016. Date of publication February 24, 2017; date of current version May 18, 2017. This work was supported in part by the National Science Foundation (NSF) under Grant CCF-1016625, in part by the NSF CAREER Award under Grant CCF-1253205, and in part by the Center for Science of Information, an NSF Science and Technology Center, under Grant CCF-0939370.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/6
Y1 - 2017/6
N2 - This paper quantifies the fundamental limits of variable-length transmission of a general (possibly analog) source over a memoryless channel with noiseless feedback, under a distortion constraint. We consider excess distortion, average distortion, and guaranteed distortion (d-semifaithful codes). In contrast to the asymptotic fundamental limit, a general conclusion is that allowing variable-length codes and feedback leads to a sizable improvement in the fundamental delay-distortion tradeoff. In addition, we investigate the minimum energy required to reproduce k source samples with a given fidelity after transmission over a memoryless Gaussian channel, and we show that the required minimum energy is reduced with feedback and an average (rather than maximal) power constraint.
AB - This paper quantifies the fundamental limits of variable-length transmission of a general (possibly analog) source over a memoryless channel with noiseless feedback, under a distortion constraint. We consider excess distortion, average distortion, and guaranteed distortion (d-semifaithful codes). In contrast to the asymptotic fundamental limit, a general conclusion is that allowing variable-length codes and feedback leads to a sizable improvement in the fundamental delay-distortion tradeoff. In addition, we investigate the minimum energy required to reproduce k source samples with a given fidelity after transmission over a memoryless Gaussian channel, and we show that the required minimum energy is reduced with feedback and an average (rather than maximal) power constraint.
KW - Variable-length coding
KW - energy-distortion tradeoff
KW - feedback
KW - finite-blocklength regime
KW - joint source-channel coding
KW - lossy compression
KW - memoryless channels
KW - rate-distortion theory
KW - single-shot method
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U2 - 10.1109/TIT.2017.2674667
DO - 10.1109/TIT.2017.2674667
M3 - Article
AN - SCOPUS:85028078842
SN - 0018-9448
VL - 63
SP - 3502
EP - 3515
JO - IRE Professional Group on Information Theory
JF - IRE Professional Group on Information Theory
IS - 6
M1 - 7864393
ER -