Confidential Cooperative Communication with the Trust Degree of Jammer

Confidential Cooperative Communication with the Trust Degree of Jammer

In this paper, we consider the trust degree of a jammer, defined as the probability that the jammer cooperates to secure the legitimate transmission, and investigate its influence on confidential cooperative communication. According to the trust degree, we derive the closed-form optimal transmit sig...

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Main Authors: Mingxiong Zhao, Di Liu, Hui Gao, Wei Feng
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Entropy
Subjects:
trust degree
confidential communication
cooperative jamming
transmit SNR
Online Access:https://www.mdpi.com/1099-4300/21/6/595
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spelling doaj-e8716234fe1843eba5ce421ee3e9d4472020-11-24T22:01:14ZengMDPI AGEntropy1099-43002019-06-0121659510.3390/e21060595e21060595Confidential Cooperative Communication with the Trust Degree of JammerMingxiong Zhao0Di Liu1Hui Gao2Wei Feng3National Pilot School of Software, Yunnan University, Kunming 650504, ChinaNational Pilot School of Software, Yunnan University, Kunming 650504, ChinaSchool of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaSchool of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, ChinaIn this paper, we consider the trust degree of a jammer, defined as the probability that the jammer cooperates to secure the legitimate transmission, and investigate its influence on confidential cooperative communication. According to the trust degree, we derive the closed-form optimal transmit signal-to-noise ratio (SNR) of the confidential message, <inline-formula> <math display="inline"> <semantics> <msubsup> <mi>&#961;</mi> <mi>c</mi> <mo>⋆</mo> </msubsup> </semantics> </math> </inline-formula>, to maximize the expected secrecy rate, and further obtain the relationship between <inline-formula> <math display="inline"> <semantics> <msubsup> <mi>&#961;</mi> <mi>c</mi> <mo>⋆</mo> </msubsup> </semantics> </math> </inline-formula> and the trust degree associated with the transmit SNR at the transmit user and channel gains. Simulation results demonstrate that the trust degree has a great effect on the transmit SNR of the confidential message and helps improve the performance of confidential cooperation in terms of the expected secrecy rate.https://www.mdpi.com/1099-4300/21/6/595trust degreeconfidential communicationcooperative jammingtransmit SNR
collection DOAJ
language English
format Article
sources DOAJ
author Mingxiong Zhao
Di Liu
Hui Gao
Wei Feng
spellingShingle Mingxiong Zhao
Di Liu
Hui Gao
Wei Feng
Confidential Cooperative Communication with the Trust Degree of Jammer
Entropy
trust degree
confidential communication
cooperative jamming
transmit SNR
author_facet Mingxiong Zhao
Di Liu
Hui Gao
Wei Feng
author_sort Mingxiong Zhao
title Confidential Cooperative Communication with the Trust Degree of Jammer
title_short Confidential Cooperative Communication with the Trust Degree of Jammer
title_full Confidential Cooperative Communication with the Trust Degree of Jammer
title_fullStr Confidential Cooperative Communication with the Trust Degree of Jammer
title_full_unstemmed Confidential Cooperative Communication with the Trust Degree of Jammer
title_sort confidential cooperative communication with the trust degree of jammer
publisher MDPI AG
series Entropy
issn 1099-4300
publishDate 2019-06-01
description In this paper, we consider the trust degree of a jammer, defined as the probability that the jammer cooperates to secure the legitimate transmission, and investigate its influence on confidential cooperative communication. According to the trust degree, we derive the closed-form optimal transmit signal-to-noise ratio (SNR) of the confidential message, <inline-formula> <math display="inline"> <semantics> <msubsup> <mi>&#961;</mi> <mi>c</mi> <mo>⋆</mo> </msubsup> </semantics> </math> </inline-formula>, to maximize the expected secrecy rate, and further obtain the relationship between <inline-formula> <math display="inline"> <semantics> <msubsup> <mi>&#961;</mi> <mi>c</mi> <mo>⋆</mo> </msubsup> </semantics> </math> </inline-formula> and the trust degree associated with the transmit SNR at the transmit user and channel gains. Simulation results demonstrate that the trust degree has a great effect on the transmit SNR of the confidential message and helps improve the performance of confidential cooperation in terms of the expected secrecy rate.
topic trust degree
confidential communication
cooperative jamming
transmit SNR
url https://www.mdpi.com/1099-4300/21/6/595
work_keys_str_mv AT mingxiongzhao confidentialcooperativecommunicationwiththetrustdegreeofjammer
AT diliu confidentialcooperativecommunicationwiththetrustdegreeofjammer
AT huigao confidentialcooperativecommunicationwiththetrustdegreeofjammer
AT weifeng confidentialcooperativecommunicationwiththetrustdegreeofjammer
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