Results 231 to 240 of about 6,275,123 (273)

Randomized channel hopping scheme for anti-jamming communication

2010 IFIP Wireless Days, 2010
Jamming attacks have been recently studied as wireless security threats disrupting reliable RF communication in a wireless network. By emitting noise-like signals arbitrarily on the shared wireless medium, a jammer can easily disturb the network. Countermeasures such as Frequency-Hopping Spread Spectrum enable nodes to avoid the jamming attacks by ...
Eun-Kyu Lee, Soon-Young Oh, Mario Gerla
openaire   +1 more source

Anti-Jamming Trajectory and Power Design for Cognitive UAV Communications

2021 International Wireless Communications and Mobile Computing (IWCMC), 2021
This paper studies the anti-jamming issue for cognitive unmanned aerial vehicle (UAV) communication networks. We aim to maximize the throughput of information collection in sensitive areas or unmanned areas of military borders by optimizing the UAV trajectory and the secondary transmitters (STs)' transmit power, in the presence of malicious jammers ...
Yufang Gao, Yang Wu, Zhichao Cui, Wendong Yang, Ning Li   +4 more
openaire   +2 more sources

An anti-jamming framework of spread spectrum communications with ICA

SPIE Proceedings, 2012
When jamming signal is strong enough, the performance of spread spectrum (SS) communications will decline quickly. According to the independence between the SS signal and the jamming signal in baseband, a novel anti-jamming framework of SS communication with independent component analysis (ICA) is proposed in this paper.
Miao Yu, Mingyue Wang, Shengyong Guan
openaire   +1 more source

Intelligent Anti-Jamming Decision Algorithm for Wireless Communication Based on MAPPO

Electronics
A wireless communication intelligent anti-jamming decision algorithm based on Deep Reinforcement Learning (DRL) can gradually optimize communication anti-jamming strategies without prior knowledge by continuously interacting with the jamming environment.
Yingtao Niu
exaly   +2 more sources

Randomized positioning DSSS for anti-jamming wireless communications

2016 International Conference on Computing, Networking and Communications (ICNC), 2016
Traditional anti-jamming approaches like Frequency Hopping Spread Spectrum (FHSS) and Direct Sequence Spread Spectrum (DSSS) require the sender and the receiver to share a secret key prior to their communication. If this key is compromised by the jammer, the jammer can then generate the frequency hopping patterns or the spreading codes used by the ...
Ahmad Alagil, Meshari Alotaibi, Yao Liu 0007   +2 more
openaire   +1 more source

Anti-Jamming Communication Game for UAV-Aided VANETs

GLOBECOM 2017 - 2017 IEEE Global Communications Conference, 2017
Vehicular ad-hoc networks (VANETs) are vulnerable to jamming attacks, and frequency hopping-based anti- jamming techniques are not always applicable in VANETs due to the high mobility of the onboard units (OBUs) especially under a large scale network topology.
Xiaozhen Lu, Dongjin Xu, Liang Xiao 0003, Lei Wang 0009, Weihua Zhuang   +4 more
openaire   +2 more sources

Adaptive Algorithm for Anti-Jamming in Broadband Communication

Applied Mechanics and Materials, 2014
This paper presents a method to suppress narrowband interference in the direct sequence spread spectrum communication based frequency domain adaptive algorithm. The method determines the interference threshold by N-sigma algorithm and calculates the cut-off condition by separating the signal.
Jian Hua Cui, Nai Ping Cheng
openaire   +1 more source

Distributed anti-jam wireless communications network

MILCOM 97 MILCOM 97 Proceedings, 2002
Motorola is investigating network architectures to support anti-jam wireless communications for the Advanced Telecommunication/Information Distribution Research Program Consortium sponsored by the U.S. Army Research Laboratory. It is envisioned that the network architecture will contain a distributed network control structure and mobile nodes.
M. Ennis, S. Chuprun
openaire   +1 more source

Design and Implementation of Antenna Anti-Jamming Communication

2019 International Conference on Smart Grid and Electrical Automation (ICSGEA), 2019
Traditional square antenna anti-jamming communication is prone to errors, resulting in rapid deterioration or even failure of communication performance. Therefore, the anti-jamming RF front-end system based on antenna array is optimized, and the multi-channel antenna signal acquisition algorithm is designed to solve the problem that traditional antenna
Wang Weifeng, Cai Wei
openaire   +1 more source

Blind Source Separation for Satellite Communication Anti-jamming

2019
In this paper, the feasibility of applying blind source separation (BSS) to satellite communication (SatCom) anti-jamming is studied. And an EASI-based BSS method is introduced for anti-jamming processing for SatCom system. This method achieves the elimination of jamming signal by separation.
Hua Yang 0004, Hang Zhang 0001, Jiang Zhang 0004, Liu Yang 0004, Pengfei Wang   +4 more
openaire   +2 more sources