Results 1 to 10 of about 3,349 (156)

A Novel Frequency-Hopping Sequence for Covert Communication

open access: yesIEEE Access, 2017
In this paper, a novel frequency-hopping sequence with lower probability of detection is proposed for covert communication systems. By formulating and solving a constrained optimization problem, a probability vector aiming for covert communication is ...
Ben Ning, Lei Guan, Haiyan Huang
doaj   +5 more sources

Anti-follower jamming wide gap multi-pattern frequency hopping communication method

open access: yesDefence Technology, 2020
This paper deals with the follower jamming (FJ) resistance for the frequency hopping (FH) communication system over additive white Gaussian noise (AWGN) channel.
Yao-bei Wang   +3 more
doaj   +4 more sources

Analysis of Anti-Jamming Performance of HF Access Network Based on Asymmetric Frequency Hopping [PDF]

open access: yesSensors
The primary focus of this paper lies in addressing the inadequate anti-dynamic jamming capability of the link layer within high-frequency (HF) access networks.
Ruijie Duan, Liang Jin, Xiaofei Lan
doaj   +2 more sources

Enhancing Shadow Fading Mitigation with RIS Using Two-Dimensional Orthogonal Pattern Division Multiple Access [PDF]

open access: yesSensors
This paper addresses multipath interference introduced by reconfigurable intelligent surface (RIS) in mitigating shadow fading in wireless communication systems.
Zhiying Yang   +4 more
doaj   +2 more sources

Ultra-broadband anti-jamming communication via a Rydberg atomic receiver [PDF]

open access: yesNature Communications
Ultra-broadband anti-jamming communication can support secure information transfer through spread-spectrum techniques that resist interference and interception.
Jia-Dou Nan   +13 more
doaj   +2 more sources

On the Application of a Hybrid Incomplete Exponential Sum to Aperiodic Hamming Correlation of Some Frequency-Hopping Sequences [PDF]

open access: yesEntropy
Frequency-hopping sequences are essential in frequency-hopping spread spectrum communication systems due to their strong anti-interference capabilities, low probability of interception, and high confidentiality.
Peihua Li, Hongyu Han
doaj   +2 more sources

A New Differential Frequency Hopping Scheme based on Chaotic Encryption Algorithm

open access: yesGuangtongxin yanjiu, 2022
Aiming at the problem that the two-dimensional uniformity of the frequency hopping pattern in differential frequency hopping communication is poor, and the frequency hopping frequency is easy to be eavesdropped, this paper designs an encryption scheme ...
Ai-bing YIN, Yi LI
doaj   +3 more sources

Intelligent Reception of Frequency Hopping Signals Based on CVDP

open access: yesApplied Sciences, 2023
The frequency hopping communication systems have been widely used in anti-jamming communication due to their anti-interception and anti-interference capabilities. With the increasingly complex electromagnetic environment, the transmitter of the frequency
Ze Yuan   +4 more
doaj   +1 more source

Frequency-Hopping MIMO Radar-Based Communications: An Overview [PDF]

open access: yesIEEE Aerospace and Electronic Systems Magazine, 2022
9 pages, 8 ...
Kai Wu   +3 more
openaire   +2 more sources

Optimal Constructions of Low-Hit-Zone Frequency-Hopping Sequence Sets via Cyclotomy

open access: yesIEEE Access, 2023
In complex environments of wireless communication, to improve the communication anti-interference performance, quasi-synchronous frequency-hopping (FH) communication system requires low-hit-zone (LHZ) FH sequence sets with optimal Hamming correlation (HC)
Changyuan Wang   +4 more
doaj   +1 more source

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