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- Oechtering, Tobias J., et al.
(författare)
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Broadcast capacity region of two-phase bidirectional relaying
- 2008
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Ingår i: IEEE Transactions on Information Theory. - 0018-9448 .- 1557-9654. ; 54:1, s. 454-458
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Tidskriftsartikel (refereegranskat)abstract
- In a three-node network bidirectional communication between two nodes can be enabled by a half-duplex relay node with a decode-and-forward protocol. In the first phase, the messages of two nodes are transmitted to the relay node. In the second phase a re-encoded, composition is broadcasted by the relay node. In this work the capacity region of the broadcast phase in terms of the maximal probability of error is determined. It is characterized by the mutual informations of the separate channels coupled by the common input.
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| 3. |
- Vu, Minh Thành, et al.
(författare)
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Uncertainty in Identification Systems
- 2021
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Ingår i: IEEE Transactions on Information Theory. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 0018-9448 .- 1557-9654. ; 67:3, s. 1400-1414
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Tidskriftsartikel (refereegranskat)abstract
- High-dimensional identification systems consisting of two groups of users in the presence of statistical uncertainties are considered in this work. The task is to design enrollment mappings to compress users' information and an identification mapping that combines the stored information in the database and an observation to estimate the underlying user index. The compression-identification trade-off regions are established for the compound, extended compound, general and mixture settings. It is shown that several settings admit the same compression-identification trade-offs. We then study a connection between the Wyner-Ahlswede-Korner network and the identification setting. It indicates that a strong converse for the WAK network is equivalent to a strong converse for the identification setting. Finally, we present strong converse arguments for the discrete identification setting that are extensible to the Gaussian scenario.
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| 4. |
- Wiese, Moritz, et al.
(författare)
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A Channel Under Simultaneous Jamming and Eavesdropping Attack-Correlated Random Coding Capacities Under Strong Secrecy Criteria
- 2016
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Ingår i: IEEE Transactions on Information Theory. - : IEEE Press. - 0018-9448 .- 1557-9654. ; 62:7, s. 3844-3862
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Tidskriftsartikel (refereegranskat)abstract
- We give a complete characterization of the correlated random coding secrecy capacity of arbitrarily varying wiretap channels (AVWCs). We apply two alternative strong secrecy criteria, which both lead to the same multi-letter formula. The difference of these criteria lies in the treatment of correlated randomness; they coincide in the case of uncorrelated codes. On the basis of the derived formula, we show that the correlated random coding secrecy capacity is continuous as a function of the AVWC, in contrast to the discontinuous uncorrelated coding secrecy capacity. In the proof of the secrecy capacity formula for correlated random codes, we apply an auxiliary channel, which is compound from the sender to the intended receiver and arbitrarily varying from the sender to the eavesdropper.
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