Analog multiple descriptions: A zero-delay source-channel coding approach
| Autor: | Kenneth Rose, Mustafa S. Mehmetoglu, Emrah Akyol |
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| Rok vydání: | 2016 |
| Předmět: |
FOS: Computer and information sciences
Channel code Source code Optimization problem Computer science Computer Science - Information Theory Information Theory (cs.IT) media_common.quotation_subject 020206 networking & telecommunications 02 engineering and technology 01 natural sciences 010305 fluids & plasmas 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Algorithm media_common Communication channel |
| Zdroj: | ICASSP |
| DOI: | 10.1109/icassp.2016.7472402 |
| Popis: | This paper extends the well-known source coding problem of multiple descriptions, in its general and basic setting, to analog source-channel coding scenarios. Encoding-decoding functions that optimally map between the (possibly continuous valued) source and the channel spaces are numerically derived. The main technical tool is a non-convex optimization method, namely, deterministic annealing, which has recently been successfully used in other mapping optimization problems. The obtained functions exhibit several interesting structural properties, map multiple source intervals to the same interval in the channel space, and consistently outperform the known competing mapping techniques. Comment: Submitted to ICASSP 2016 |
| Databáze: | OpenAIRE |
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