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In this paper, we present new results on network error correction with unequal link capacities. We consider network error correction codes that can correct arbitrary errors occurring on up to z links. We find the capacity of a two-node network with multiple feedback links and show how feedback links can be used to increase the error correction capacity. We propose a new cut-set upper bound for general...
An information-theoretic approach for detecting Byzantine or adversarial modifications in networks employing random linear network coding is described. Each exogenous source packet is augmented with a flexible number of hash symbols that are obtained as a polynomial function of the data symbols. This approach depends only on the adversary not knowing the random coding coefficients of all other packets...
We consider relaying strategies for memoryless two-way relay channels, where the signal transmitted by a relay depends only on its previously received signal. For binary antipodal signaling under the general case of different SNRs on the terminal-relay channels, we consider two classes of relay strategies: abs-based strategies in which the processing at the relay is solely based on the absolute value...
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