Results 211 to 220 of about 9,046,388 (244)
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Frequency/time hopping sequence sets with optimal partial Hamming correlation properties
Science China Information Sciences, 2012zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhengchun Zhou +2 more
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Optimal Frequency-Hopping Sequence Sets Based on Cyclotomy
International Journal of Foundations of Computer Science, 2016In this paper, a kind of generalized cyclotomy with respect to the square of a prime is presented and the properties of the corresponding generalized cyclotomic numbers are investigated. Based on the generalized cyclotomy, a class of frequency-hopping sequence (FHS) set is constructed. By means of some basic properties of the generalized cyclotomy, we
Shanding Xu, Xiwang Cao, Guangkui Xu
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New Constructions for Optimal Sets of Frequency-Hopping Sequences
IEEE Transactions on Information Theory, 2011In this paper, two generic constructions of optimal frequency-hopping sequence (FHS) sets employing d-form functions with difference-balanced property are presented. They generalize the previous constructions of optimal FHS sets using m-sequences and produce new optimal FHS sets that cannot be produced by the earlier constructions.
Zhengchun Zhou +3 more
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Sets of Frequency Hopping Sequences: Bounds and Optimal Constructions
IEEE Transactions on Information Theory, 2009Frequency hopping spread spectrum and direct sequence spread spectrum are two main spread coding technologies in communication systems. Frequency hopping sequences are needed in frequency hopping code-division multiple-access (FH-CDMA) systems. In this paper, four algebraic and a combinatorial constructions of optimal sets of frequency hopping ...
Cunsheng Ding +4 more
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Linear Complexities of the Frequency Hopping Sequences in Two Optimal Sets
2011 Third International Conference on Intelligent Networking and Collaborative Systems, 2011For the secure purpose, large linear complexity is desired for each frequency hopping sequence in an optimal set. This paper gives two results. Firstly, we extend a result given by Wang. In \cite{Wang(2011)}, a power permutation is only suitable for a special construction of optimal set of frequency hopping sequences.
Juntao Gao, Xuelian Li
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Low-Hit-Zone Frequency-Hopping Sequence Sets with New Parameters
Cryptography and Communications, 2012In quasi-synchronous frequency-hopping multiple-access systems, low-hit-zone frequency-hopping sequence (LHZ-FHS) sets are commonly employed to minimize multiple-access interferences. In this paper, we present (near-)optimal LHZ-FHS sets with new parameters.
Jin-Ho Chung, Yang, K.
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New sets of frequency-hopping sequences with optimal Hamming correlation
Designs, Codes and Cryptography, 2012zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wenli Ren +2 more
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A new construction of optimal frequency hopping sequence sets
2009 Fourth International Workshop on Signal Design and its Applications in Communications, 2009Frequency hopping (FH) sequences have important applications in FH-CDMA systems. In this paper, a simple but general construction of optimal FH sequence sets using difference-balanced functions is presented. It generalizes several known algebraic constructions of optimal FH sequences.
Zhengchun Zhou, Xiaohu Tang
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Set of Frequency-Hopping Sequence with Optimal Hamming Correlation
Applied Mechanics and Materials, 2014In wireless communication systems, frequency hopping (FH) spread spectrum and direct sequence spread spectrum are two main spread coding technologies. In this paper,by the Cartesian product, we construct one class of one-coincidence frequency-hopping sequence set.
Hong Wang, Ping Huang
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The linear span of the frequency hopping sequences in optimal sets
Designs, Codes and Cryptography, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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