Results 221 to 230 of about 9,046,388 (244)

Strictly Optimal Frequency-Hopping Sequence Sets With Optimal Family Sizes

IEEE Transactions on Information Theory, 2016
Frequency-hopping sequences (FHSs) with favorable partial Hamming correlation properties are desirable in many synchronization and multiple-access systems. An FHS set is said to be strictly optimal if it has optimal partial Hamming correlation for any correlation window. In this paper, we derive upper bounds on the family sizes of FHS sets with respect
Han Cai, Yang Yang 0005, Zhengchun Zhou, Xiaohu Tang 0004   +3 more
openaire   +2 more sources

Optimal Sets of Frequency Hopping Sequences With Large Linear Spans

IEEE Transactions on Information Theory, 2010
Frequency hopping (FH) is one of the basic spread coding technologies in spread spectrum communications. FH sequences are needed in FH code-division multiple access (CDMA) systems. For the anti-jamming purpose, FH sequences are required to have a large linear span. A few optimal sets of FH sequences are available in the literature.
openaire   +3 more sources

Optimal Sets of Frequency Hopping Sequences From Linear Cyclic Codes

IEEE Transactions on Information Theory, 2010
In communication systems, frequency hopping spread spectrum and direct sequence spread spectrum are two main spread coding technologies. Frequency hopping sequences are used in FH-CDMA systems. In this paper, an earlier idea of constructing optimal sets of frequency hopping sequences is further investigated.
Cunsheng Ding, Yang Yang 0005, Xiaohu Tang 0004   +2 more
openaire   +3 more sources

Frequency-hopping sequence sets with good aperiodic Hamming correlation property

Cryptography and Communications, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
LiMengNan Zhou, Daiyuan Peng, Xing Liu 0001, Hongyu Han, Zheng Ma 0001   +4 more
openaire   +2 more sources

New Constructions of Optimal Frequency-Hopping Sequence Sets with Low-Hit-Zone

International Journal of Foundations of Computer Science, 2016
The frequency-hopping sequence set with low-hit-zone (LHZ FHS set) is useful for eliminating multiple-access interference in quasi-synchronous frequency-hopping multiple access systems. In this paper, basing on Cyclotomy, the discrete logarithm function and the Chinese remainder theorem, we construct two classes of LHZ FHS sets which have new ...
ChangYuan Wang, Daiyuan Peng, LiMengNan Zhou   +2 more
openaire   +2 more sources

An Optimal Frequency Hopping Sequence Set Based on the Polynomial Theory

Applied Mechanics and Materials, 2014
A new class of cubic frequency hopping (FH) sequence set is proposed in this paper. The new cubic FH sequence set is proved to be optimal with respect to the average Hamming correlation bound. Furthermore an optimal FH sequence set based on polynomial theory that is optimal with respect to the Singleton bound on FH sequences is also constructed.
Lian Wang, Min Liu
openaire   +1 more source

Optimal frequency-hopping sequence sets under maximum aperiodic Hamming correlation

2015 Seventh International Workshop on Signal Design and its Applications in Communications (IWSDA), 2015
In order to evaluate the goodness of frequency-hopping sequences, the maximum aperiodic Hamming correlation is used as an important measure. In this paper, based on generalized Gordon-Mills-Welch sequences (GGMW sequences) and generalized m-sequences (GM sequences), two classes of frequency-hopping sequence sets arc presented, which are optimal for ...
ChangYuan Wang, Daiyuan Peng
openaire   +2 more sources

On the Average Hamming Correlation of Frequency-Hopping Sequence Sets with Low Hit Zone

2019 International Symposium on Networks, Computers and Communications (ISNCC), 2019
In frequency-hopping sequence (FHS) design, the average Hamming correlation is an important performance indicator. In this paper, the average Hamming correlation of low-hit-zone (LHZ) FHS sets, which has not yet been reported previously, is studied. A lower bound on the average Hamming auto-correlation and the average Hamming cross-correlation of LHZ ...
Xing Liu 0001, Liang Zhou 0003, Qi Zeng 0003, Xianhua Niu   +3 more
openaire   +1 more source

New Algebraic and Combinatorial Constructions for Optimal Frequency Hopping Sequence Sets

IEEE Transactions on Information Theory
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Analysis of protocol sequence sets for asynchronous slow frequency hopping

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333), 2002
The error probability bound is shown for asynchronous slow frequency hopping multiple access channel with non-random protocol sequence sets. Protocol sequence sets with interleaved codes are considered. This bound depends on the maximum and average Hamming correlation properties of the protocol sequence set applied.
openaire   +1 more source