منابع مشابه
Compound Wiretap Channels
This paper considers the compound wiretap channel, which generalizes Wyner’s wiretap model to allow the channels to the (legitimate) receiver and to the eavesdropper to take a number of possible states. No matter which states occur, the transmitter guarantees that the receiver decodes its message and that the eavesdropper is kept in full ignorance about the message. The compound wiretap channel...
متن کاملSecrecy results for compound wiretap channels
We derive a lower bound on the secrecy capacity of the compound wiretap channel with channel state information at the transmitter which matches the general upper bound on the secrecy capacity of general compound wiretap channels given by Liang et al. and thus establishing a full coding theorem in this case. We achieve this with a stronger secrecy criterion and the maximum error probability crit...
متن کاملSecrecy capacities of compound quantum wiretap channels and applications
We determine the secrecy capacity of the compound channel with quantum wiretapper and channel state information at the transmitter. Moreover, we derive a lower bound on the secrecy capacity of this channel without channel state information and determine the secrecy capacity of the compound classical-quantum wiretap channel with channel state information at the transmitter. We use this result to...
متن کاملWiretap Channels: Nonasymptotic Fundamental Limits
This paper investigates the maximal secret communication rate over a wiretap channel subject to reliability and secrecy constraints at a given blocklength. New achievability and converse bounds are derived, which are uniformly tighter than existing bounds, and lead to the tightest bounds on the second-order coding rate for discrete memoryless and Gaussian wiretap channels. The exact secondorder...
متن کاملCapacity results for classes of wiretap channels
We consider two communication systems which are time-discrete and memoryless, both depend on a state, in terms of information-theoretic secure data transmission. The compound channel consists of a finite or infinite set of channels which is known to both the sender and the receiver, but unfortunately it is not known which channel is in use for any codeword transmission. In contrast the state of...
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ژورنال
عنوان ژورنال: EURASIP Journal on Wireless Communications and Networking
سال: 2009
ISSN: 1687-1499
DOI: 10.1155/2009/142374