Results 1 to 10 of about 4,155 (121)

Construction of Optimal Frequency Hopping Sequence Set with Low-Hit-Zone [PDF]

open access: yesEntropy, 2023
In quasi-synchronous frequency-hopping multiple access (QS-FHMA) systems, low-hit-zone (LHZ) frequency-hopping sequence (FHS) sets have been well-applied to reduce mutual interference (MI).
Xinyu Tian   +3 more
doaj   +7 more sources

New Families of Optimal Frequency Hopping Sequence Sets [PDF]

open access: yesIEEE Transactions on Information Theory, 2016
10 ...
Jingjun Bao
exaly   +4 more sources

New Extension Constructions of Optimal Frequency-Hopping Sequence Sets [PDF]

open access: yesIEEE Transactions on Information Theory, 2019
In this paper, a general framework of constructing optimal frequency hopping sequence (FHS) sets is presented based on the designated direct product. Under the framework, we obtain infinitely many new optimal FHS sets by combining a family of sequences that are newly constructed in this paper with some known optimal FHS sets.
Chaoping Xing, Xianhua Niu
exaly   +3 more sources

Theoretical bound on frequency hopping sequence set

open access: yesElectronics Letters, 2013
A new bound on the frequency hopping (FH) sequence set with respect to the size of the frequency slot set q , the sequence length N , the family size M , the maximum periodic Hamming correlation
X. Liu, D.Y. Peng
exaly   +2 more sources

New Families of Frequency-Hopping Sequence Sets with a Low-Hit-Zone

open access: yesEntropy
As a means of spread spectrum communication, frequency-hopping technology has good performance in anti-jamming, multiple-access, security, covert communications, and so on.
Limengnan Zhou, Hanzhou Wu
doaj   +3 more sources

Construction of secure adaptive frequency hopping sequence sets based on AES algorithm

open access: yesIET Communications
Communication security has become particularly crucial with the rapid development of the Internet of Things (IoT). Frequency hopping spread spectrum (FHSS) technology, a prevalent method in wireless communication, has a wide range of applications in the ...
Dongpo Song   +3 more
doaj   +3 more sources

Linear spans of optimal sets of frequency hopping sequences [PDF]

open access: yesRAIRO - Theoretical Informatics and Applications, 2012
Summary: Frequency hopping sequences sets are required in frequency hopping code division multiple access systems. For the anti-jamming purpose, frequency hopping sequences are required to have a large linear span. In this paper, by using a permutation polynomial \(\delta (x)\) over a finite field, we transform several optimal sets of frequency hopping
Juntao Gao, Yupu Hu, Xuelian Li
openaire   +2 more sources

Frequency-Hopping Sequences With Optimal Average Hamming Correlation and Their Applications in Energy and Spectrum Harvesting Technologies Area

open access: yesIEEE Access, 2021
The research of cyclotomy theory can be traced to Gauss and it has been applied to many fields such as cryptography, coding theory, and combinatorics. According to $v$ prime numbers or compound words, the incision on the residue-like ring ${\mathbb Z ...
Mingyue Fan
doaj   +1 more source

Optimum Combining for Coherent FFH/DS Spread Spectrum Receivers in the Presence of Multi-Tone Jammer

open access: yesIEEE Access, 2020
Fast Frequency Hopping/Direct Sequence (FFH/DS) hybrid spread spectrum is an effective technique of the communication network for the robot swarms operating in complex electromagnetic environment.
Shixun Luo   +5 more
doaj   +1 more source

Construction of Optimal Sets of Frequency Hopping Sequences [PDF]

open access: yesISRN Combinatorics, 2013
Frequency hopping spread spectrum and direct sequence spread spectrum are two main spread coding technologies. Frequency hopping sequences are needed in FH-CDMA systems. In this paper, a construction of optimal sets of frequency hopping sequences is presented.
openaire   +2 more sources

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