Reliable source transmission over relay networks with Side Information

In this paper, we consider reliable transmission of a discrete memoryless source over multi-relay networks with correlated side information (SI) available at the relay nodes and the final receiver. We obtain a necessary condition for reliable source transmission over a multi-terminal network with SI...

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Bibliographic Details
Main Authors: Sefidgaran, M., Akhbari, B., Mohsenzadeh, Y., Aref, M.R.
Format: Conference Proceeding
Language:English
Subjects:
Channel coding
Contracts
Decoding
Degradation
Information security
Information systems
Propagation losses
Relays
Source coding
Sufficient conditions
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Summary:In this paper, we consider reliable transmission of a discrete memoryless source over multi-relay networks with correlated side information (SI) available at the relay nodes and the final receiver. We obtain a necessary condition for reliable source transmission over a multi-terminal network with SI, which results in a necessary condition for a multi-relay network with SI, as a special case. We also propose a separate source-channel coding scheme, and based on it, a sufficient condition for a multi-relay network with SI is derived. Based on a partitioning method and the nature of a degraded relay network, we propose another coding scheme which results in a sufficient condition for a degraded relay network with SI. We show that these proposed schemes which are based on operational separation, achieve the same rates as the joint source-channel codes and these sufficient conditions are indeed necessary conditions for the degraded relay networks with degraded SI.
ISSN:2157-8095
2157-8117
DOI:10.1109/ISIT.2009.5205672