On State-Dependent Degraded Broadcast Channels With Cooperation

PROJECT TITLE :

On State-Dependent Degraded Broadcast Channels With Cooperation

ABSTRACT:

During this paper, we have a tendency to investigate issues of Communication over physically degraded, state-dependent broadcast channels (BCs) with cooperating decoders. Two completely different setups are considered, and their capability regions are characterized. 1st, we have a tendency to study a setting in that one decoder can use a finite capability link to send the opposite decoder info relating to the messages or the channel states. In this scenario, we tend to analyze 2 cases: one, where noncausal state info, is out there to the encoder and the sturdy decoder, and the opposite, where state info, is on the market solely to the encoder in an exceedingly causal manner. Second, we have a tendency to examine a setting in that the cooperation between the decoders is limited to taking place before the outputs of the channel are given. During this case, one decoder, which is informed of the state sequence noncausally, can cooperate only to send the opposite decoder rate-limited information regarding the state sequence. The proofs of the capacity regions introduce a new plan of coding for channels with cooperation between different users, where we exploit the link between the decoders for multiple binnings. Finally, we tend to discuss the optimality of using rate-splitting techniques when coding for cooperative BCs. In explicit, we show that rate splitting is not essentially optimal when coding for cooperative BCs by solving an example in which our methodology of coding outperforms rate splitting.

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