Results 21 to 30 of about 6,275,123 (273)

Fast Reinforcement Learning for Anti-jamming Communications

open access: yesCoRR, 2020
This letter presents a fast reinforcement learning algorithm for anti-jamming communications which chooses previous action with probability $τ$ and applies $ε$-greedy with probability $(1-τ)$. A dynamic threshold based on the average value of previous several actions is designed and probability $τ$ is formulated as a Gaussian-like function to guide the
Pei-Gen Ye   +3 more
openaire   +3 more sources

Fractional fourier transform based monopulse radar for combating jamming interference [PDF]

open access: yes, 2010
Monopulse radars are used to track a target that appears in the look direction beam width. The distortion produced when manmade high power interference (jamming).
Elgamel, Sherif A.E.H., Soraghan, J.J.
core   +4 more sources

Research on Intelligent anti-jamming communication with Cognitive Radio [PDF]

open access: yesEAI Endorsed Transactions on Cognitive Communications, 2019
In order to solve the interfere problem in complex electromagnetic environment, NC-OFDM and TDCS are efficient transmit wave form proposed for cognitive radio. The spectral efficiency and the applicable environment of TDCS are different from NC-OFDM.
Jingning Wang, Meng Liu, Yi Zhang
openaire   +3 more sources

An Intelligent Access Channel Algorithm Based on Distributed Double Q Learning

open access: yesApplied Sciences, 2022
Aiming at the problem of mutual interference between nodes and external malicious jamming in wireless communication networks, this paper proposes an intelligent communication anti-jamming algorithm based on distributed double Q-learning.
Guoliang Zhang   +3 more
doaj   +1 more source

Research Prospect of Anti-Jamming Strategy for the Satellite Internet

open access: yes天地一体化信息网络, 2022
As an important infrastructure of the national information system, the satellite internet is of great signifi cance to the national security.Thus, it needs to ensure the validity and reliability of the data transmission in the hostile jamming environment.
Chen HAN, Aijun LIU, Kang AN
doaj   +2 more sources

Jamming Modulation: An Active Anti-Jamming Scheme [PDF]

open access: yes, 2022
Providing quality communications under adversarial electronic attacks, e.g., broadband jamming attacks, is a challenging task. Unlike state-of-the-art approaches which treat jamming signals as destructive interference, this paper presents a novel active ...
Jianhui Ma   +11 more
core   +2 more sources

Controllable Multiple Active Reconfigurable Intelligent Surfaces Assisted Anti-Jamming Communication

open access: yes, 2023
Traditional anti-jamming techniques such as frequency hopping (FH) and direction-sequence spread spectrum (DSSS) are easily targeted by jammers. Inspired by the significant advantages of reconfigurable intelligent surfaces (RIS), and in order to overcome
Yonggang Zhu, Li Ni, Wenlong Guo
core   +1 more source

Mode Hopping for Anti-Jamming in Radio Vortex Wireless Communications [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2018
Frequency hopping (FH) has been widely used as a powerful technique for antijamming in wireless communications. However, as the wireless spectrum is becoming more and more crowded, it is very difficult to achieve efficient antijamming results with FH-based schemes.
Liping Liang   +3 more
openaire   +4 more sources

A Novel Anti-Jamming Decision-Making Algorithm Based on Knowledge Graph Technology

open access: yesApplied Sciences, 2022
Wireless communications are increasingly vulnerable to malicious jamming attacks due to the inherent openness and broadcast nature. In this regard, a novel anti-jamming scheme based on knowledge graph is proposed in this paper, where the knowledge graph ...
Yingtao Niu   +3 more
doaj   +1 more source

Jamming-resilient algorithm for underwater cognitive acoustic networks

open access: yesInternational Journal of Distributed Sensor Networks, 2017
Due to the limit spectrum resource in the underwater acoustic networks, underwater cognitive acoustic communication is a promising technique. The channel sharing mechanism in cognitive networks can improve the communication capacity efficiently.
Zixiang Wang   +4 more
doaj   +1 more source

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