DocumentCode
3073913
Title
Robust joint source-channel coding theory
Author
Mittal, Udar ; Phamdo, Nam
Author_Institution
Dept. of Electr. Eng., State Univ. of New York, Stony Brook, NY, USA
fYear
1997
fDate
29 Jun-4 Jul 1997
Firstpage
445
Abstract
We consider joint source-channel coding for a memoryless Gaussian source and an additive white Gaussian noise (AWGN) channel. A code is said to be robust if its performance is arbitrarily close to the theoretical limit for a wide range of channel noise conditions. The existence of robust codes depends on the ratio of the channel bandwidth to the source bandwidth-a quantity we called ρ. We first show that when ρ=1, robust codes do indeed exist. Secondly, no robust code exists for ρ≠1
Keywords
Gaussian channels; Gaussian processes; channel coding; memoryless systems; rate distortion theory; source coding; AWGN channel; Gaussian process; additive white Gaussian noise channel; channel bandwidth to source bandwidth ratio; channel noise conditions; joint source-channel coding; memoryless Gaussian source; performance; rate distortion function; robust codes; AWGN channels; Additive white noise; Bandwidth; Codes; Decoding; Gaussian noise; Gaussian processes; Noise robustness; Rate-distortion; Sampling methods;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory. 1997. Proceedings., 1997 IEEE International Symposium on
Conference_Location
Ulm
Print_ISBN
0-7803-3956-8
Type
conf
DOI
10.1109/ISIT.1997.613382
Filename
613382
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