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An improved approximate decoding with correlated sources

Title
An improved approximate decoding with correlated sources
Authors
Kwon M.Park H.
Ewha Authors
박형곤
SCOPUS Author ID
박형곤scopus
Issue Date
2011
Journal Title
Proceedings of SPIE - The International Society for Optical Engineering
ISSN
0277-786XJCR Link
Citation
vol. 8185
Indexed
SCOPUS scopus
Abstract
We consider ad hoc sensor network topologies that aim for distributed delivery of correlated delay-sensitive data. In order for efficient data delivery, network coding technique in conjunction with approximate decoding algorithm is deployed. The approximate decoding algorithm enables receivers to recover the original source data even when the number of received data packets is not sufficient for decoding. Therefore, it leads to significantly improved decoding performance and enhanced robustness for delay-sensitive data. In this paper, we further improve the approximate decoding algorithm by explicitly considering the characteristics of the correlation. Specifically, we study the case where the source data are correlated by a simple linear correlation, which is quantified by a similarity factor. We investigate several properties of the proposed algorithm and analyze the impact of the similarity factor on the decoding performance. Our experimental results confirm the properties of the proposed approximate decoding algorithm with linear correlation. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
DOI
10.1117/12.892917
ISBN
9780819487452
Appears in Collections:
엘텍공과대학 > 전자공학과 > Journal papers
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