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We consider a simple multiple access network (SMAN), where k sources of unit rates transmit their data to a common sink via n relays. Each relay is connected to the sink and to certain sources. A coding scheme (for the relays) is weakly secure if a passive adversary who eavesdrops on less than k relay-sink links cannot reconstruct the data from each source. We show that there exists a weakly secure...
This paper considers the problem of error correction for a cooperative data exchange (CDE) system, where some clients are compromised or failed and send false messages. Assuming each client possesses a subset of the total messages, we analyze the error correction capability when every client is allowed to broadcast only one linearly-coded message. Our error correction capability bound determines the...
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