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Entropy 2016, 18(11), 377; doi:10.3390/e18110377

Secrecy Capacity of the Extended Wiretap Channel II with Noise

1
The State Key Laboratory of Integrated Service Networks, Xidian University, Xi’an 710071, China
2
Computer Science and Engineering Department, Shanghai Jiao Tong University, Shanghai 200240, China
*
Author to whom correspondence should be addressed.
Academic Editors: Raúl Alcaraz Martínez and Kevin H. Knuth
Received: 28 June 2016 / Revised: 30 September 2016 / Accepted: 14 October 2016 / Published: 31 October 2016
(This article belongs to the Section Information Theory)
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Abstract

The secrecy capacity of an extended communication model of wiretap channelII is determined. In this channel model, the source message is encoded into a digital sequence of length N and transmitted to the legitimate receiver through a discrete memoryless channel (DMC). There exists an eavesdropper who is able to observe arbitrary μ = N α digital symbols from the transmitter through a second DMC, where 0 α 1 is a constant real number. A pair of an encoder and a decoder is designed to let the receiver be able to recover the source message with a vanishing decoding error probability and keep the eavesdropper ignorant of the message. This communication model includes a variety of wiretap channels as special cases. The coding scheme is based on that designed by Ozarow and Wyner for the classic wiretap channel II. View Full-Text
Keywords: wiretap channel; secrecy capacity; wiretap channel II; secrecy criteria wiretap channel; secrecy capacity; wiretap channel II; secrecy criteria
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He, D.; Guo, W.; Luo, Y. Secrecy Capacity of the Extended Wiretap Channel II with Noise. Entropy 2016, 18, 377.

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