Computer Science – Information Theory
Scientific paper
2012-02-27
Computer Science
Information Theory
Submitted to IEEE Transactions on Information Theory, 2011
Scientific paper
Reliable transmission of a discrete memoryless source over a multiple-relay relay-broadcast network is considered. Motivated by sensor network applications, it is assumed that the relays and the destinations all have access to side information correlated with the underlying source signal. Joint source-channel cooperative transmission is studied in which the relays help the transmission of the source signal to the destinations by using both their overheard signals, as in the classical channel cooperation scenario, as well as the available correlated side information. Decode-and-forward (DF) based cooperative transmission is considered in a network of multiple relay terminals and two different achievability schemes are proposed: i) a regular encoding and sliding-window decoding scheme without explicit source binning at the encoder, and ii) a semi-regular encoding and backward decoding scheme with binning based on the side information statistics. It is shown that both of these schemes lead to the same source-channel code rate, which is shown to be the "source-channel capacity" in the case of i) a physically degraded relay network in which the side information signals are also degraded in the same order as the channel; and ii) a relay-broadcast network in which all the terminals want to reconstruct the source reliably, while at most one of them can act as a relay.
Erkip Elza
Goldsmith Andrea
Gunduz Deniz
Poor Harold Vincent
No associations
LandOfFree
Joint Source-Channel Cooperative Transmission over Relay-Broadcast Networks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Joint Source-Channel Cooperative Transmission over Relay-Broadcast Networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Joint Source-Channel Cooperative Transmission over Relay-Broadcast Networks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-263767