Blind Joint Soft-Detection Assisted Slow Frequency-Hopping Multicarrier DS-CDMA [PDF]
, 2000 A novel multiple-access scheme based on slow frequency-hopping multicarrier direct-sequence, code-division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrow-band ...
Yang, L-L., Hanzo, L.
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New bounds of wide‐gap frequency‐hopping sequences with frequency shift
Electronics Letters, 2022 With the rapid development of radar, the phenomenon of Doppler frequency shift is not rare. Frequency shift needs to be considered in order to accurately calculate the mutual interference between signals. Meanwhile, to reduce interference to the received
Qianhui Wei, Hongyu Han
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Asymptotic Gilbert–Varshamov Bound on Frequency Hopping Sequences [PDF]
IEEE Transactions on Information Theory, 2020 Given a $q$-ary frequency hopping sequence set of length $n$ and size $M$ with Hamming correlation $H$, one can obtain a $q$-ary (nonlinear) cyclic code of length $n$ and size $nM$ with Hamming distance $n-H$. Thus, every upper bound on the size of a code from coding theory gives an upper bound on the size of a frequency hopping sequence set.
Xianhua Niu +2 more
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Multi-group frequency hopping OFDMA based on statistical multiplexing [PDF]
, 2008 In this paper, the multi-group frequency hopping OFDMA (MG-FH OFDMA) based on the statistical multiplexing is proposed for the downlink cellular system. Compared with the existed random frequency hopping OFDMA (RFH-OFDMA) system utilizing the statistical
Su, Xinghui +9 more
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Sets of Wide-Gap Frequency-Hopping Sequence With Optimal Maximum Hamming Correlation
IEEE Access, 2022 In application, frequency-hopping (FH) communication system often suffers various interferences, such as single frequency narrow-band interference, partial band blocking interference and tracking interference, and so on.
Changyuan Wang +4 more
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On Effectiveness of Hopping-Based Spread Spectrum Techniques for Network Forensic Traceback [PDF]
International Journal of Networked and Distributed Computing (IJNDC), 2013 Network-based crime has been increasing in both extent and severity and network-based forensics encapsulates an essential part of legal surveillance. A key network forensics tool is traceback that can be used to identify true sources of suspects.
Wei Yu +6 more
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Bit error simulation of DQPSK for a slow frequency hopping CDMA system in mobile radio communications [PDF]
, 1995 Spread spectrum (SS) techniques seem to be an attractive alternative to conventional narrow-band modulation. In this paper a frequency hopping (FH) system model based on slow FH (SFH) is proposed.
Mortazavi, SH +3 more
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Scheme and experiment of fast frequency hopping communication system based on SDR
Tongxin xuebao, 2022 A fast frequency hopping scheme based on SDR was proposed to solve the problem that the existing fast frequency hopping communication system relied on satellite timing.Firstly, a true random sequence was used to perform frequency hopping operation on the
Chengyu WEN +3 more
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Research of Dynamic Wide-gap Frequency Hopping Sequences in Dynamic Spectrum Anti-jamming System [PDF]
Jisuanji gongcheng, 2018 The existing Frequency Hopping(FH) sequence can not be directly applied to a dynamic spectrum anti-interference system due to poor statistical performance and difficulty in real-time changes of communication parameters.Therefore,a FH sequence suitable ...
LI Shengnan,LI Yonggui,NIU Yingtao,YAN Yan,LUO Jianxiang
doaj
Frequency Hopping Sequences With Optimal Partial Hamming Correlation [PDF]
IEEE Transactions on Information Theory, 2016 16 pages.
Jingjun Bao, Lijun Ji
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