Results 231 to 240 of about 15,405 (257)

Optimal cooperative jamming for security

2011 - MILCOM 2011 Military Communications Conference, 2011
In this paper, based on a cooperative jamming scheme, the design of the optimal covariance matrix of the artificial noise produced by a helper that maximizes the secret rate between a source and legitimate destination pair in the presence of multiple eavesdroppers is addressed.
null Han-Ting Chiang, James S. Lehnert
openaire   +1 more source

LDPC-based coded cooperative jamming codes

2012 IEEE Information Theory Workshop, 2012
We present a practical coded cooperative jamming scheme for the problem of secure communications over the two-way wiretap channel. We design low-density parity-check (LDPC) based codes whose codewords interfere at the eavesdropper's terminal, thus providing secrecy.
Alexandre J. Pierrot, Matthieu R. Bloch
openaire   +1 more source

Uncoordinated Cooperative Jamming for Secret Communications

IEEE Transactions on Information Forensics and Security, 2013
We consider a Gaussian wiretap channel model with a single-antenna source, destination and eavesdropper. The communication is assisted by multiple multiantenna helpers that transmit noise to confound the eavesdropper. First, we consider a nulling scheme, in which each helper independently transmits noise, designed to maximize the system secrecy rate ...
null Shuangyu Luo, null Jiangyuan Li, A. P. Petropulu   +2 more
openaire   +1 more source

Cooperative Antijamming Relaying for Control Channel Jamming in Vehicular Networks

IEEE Transactions on Vehicular Technology, 2017
Radio Frequency jamming attacks constitute a major threat to the availability of the vehicular networks. In particular, if the control channel is under persistent jamming attacks, the victim vehicles may fail to receive the safety related messages from the Road Side Unit, which can possibly cause tremendous economic loss and claim human lives.
Pengwenlong Gu, Cunqing Hua, Rida Khatoun, Yue Wu, Ahmed Serhrouchni   +4 more
openaire   +1 more source

Optimal Cooperative Relaying and Jamming for Secure Communication

IEEE Wireless Communications Letters, 2015
This letter considers joint cooperative beamforming and jamming schemes in a cooperative relay network where distributed relay nodes perform cooperative beamforming. The problem of interest is to keep the eavesdropper’s signal to interference and noise ratio (SINR) as low as possible while maintaining the legitimate receiver’s SINR requirement ...
Alotaibi, Esa Rfaiay, Hamdi, Khairi
openaire   +2 more sources

Cooperative Jamming Algorithm Based on Trust Update

2020 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery (CyberC), 2020
To deal with the security challenges and optimize the system communication quality, this paper focuses on introducing the concept of social networks to improve the physical layer security of D2D networks. The paper transforms the social relationship between nodes into a trust relationship. The node who is communicating can use free trusted D2D users as
Weifeng Lu, Zhihao Ren, Jia Xu, Siguang Chen   +3 more
openaire   +1 more source

Controllable Positioning Service With UAV-Enabled Cooperative Jamming

IEEE Wireless Communications Letters, 2021
Positioning services in cellular networks are at risk of being abused by unauthorized users, which may severely damage the interests of operators and legitimate users. In this letter, multiple unmanned aerial vehicles (UAVs) are employed as mobile jammers to disrupt the positioning services at unauthorized users, thereby enhancing the controllability ...
Zijie Wang, Rongke Liu, Qirui Liu, Lincong Han, Weiqing Mu   +4 more
openaire   +1 more source

Relay selection for optimized cooperative jamming scheme

2015 23rd European Signal Processing Conference (EUSIPCO), 2015
In this paper, we study the problem of secure dualhop transmission in the presence of an eavesdropper, where a secrecy-enhanced relay selection as well as a destination cooperation are presented to prevent the source information from being eavesdropped.
Asma Mabrouk, Kamel Tourki, Noureddine Hamdi   +2 more
openaire   +1 more source

UAV-Aided Secure Communications With Cooperative Jamming

IEEE Transactions on Vehicular Technology, 2018
This paper investigates unmanned aerial vehicle (UAV) enabled secure communication systems where a mobile UAV wishes to send confidential messages to multiple ground users. To improve the security performance, a cooperative UAV is additionally considered that transmits the jamming signal.
Hoon Lee, Subin Eom, Junhee Park, Inkyu Lee   +3 more
openaire   +2 more sources

Cooperative Jamming for Secrecy of Wireless Communications

2018 International Conference on Networking and Network Applications (NaNA), 2018
This paper explores cooperative jamming for security in wireless networks. No location data of eavesdropper is available, meanwhile no constraint on the figures of eavesdroppers is posited. A cooperative jamming approach is introduced for jamming the eavesdroppers any location in the system, even through the eavesdroppers are established quite adjacent
Baihe Ma, Zhihong Liu, Yong Zeng, Jianfeng Ma   +3 more
openaire   +1 more source