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We study an online random linear network coding approach for time division duplexing (TDD) channels under Poisson arrivals. We model the system as a bulk-service queue with variable bulk size and with feedback, i.e., when a set of packets are serviced at a given time, they might be reintroduced to the queue to form part of the next service batch. We show that there is an optimal number of coded data...
The rate regions are investigated for K-receiver broadcast relay channels with one dedicated relay node. An achievable rate region for this channel is derived. We also provide an upper bound on the capacity region. For broadcast relay channels with the relay node receiving its own information from the source, we obtain the achievable rate region as well.
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