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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Parameter estimation of frequency hopping signal based on time-frequency matrix LCM
Dianxin kexue, 2021 To improve the performance of the parameter estimation of frequency hopping signal under low signal-to-noise ratio, a parameter estimation algorithm of frequency hopping signal based on time-frequency matrix LCM was proposed.Considering the different ...
Jiamin LIU +3 more
doaj +2 more sources
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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Dynamic Spectrum Allocation Method of Shortwave Radio Access Network Based on Graph Coloring Theory [PDF]
Jisuanji gongcheng, 2016 Aiming at the problem that the existing fixed spectrum allocation method of shortwave radio access network can not satisfy the new requirement of applying intelligent frequency hopping technology,the spectrum demand of shortwave radio access network ...
DUAN Ruijie,YAO Fuqiang,LI Yonggui,NIU Yingtao,QI Yangyang
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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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Noncoherent Multi-Way Relay Based on Fast Frequency-Hopping M-ary Frequency-Shift Keying [PDF]
, 2010 Information exchange among a group of users is implemented with the aid of fast frequency-hopping $M$-ary frequency-shift keying multi-way relay (FFH/MFSK MWR). The FFH/MFSK MWR scheme uses two time-slots per symbol for achieving the information exchange,
Cao, Jianfei +2 more
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IEEE Access, 2020 The Road Side Unit (RSU) is an important part of the Internet of Vehicles (IoV), which collects a large number of user's privacy information and connects vehicles to the Internet.
Yun He +5 more
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Radio Frequency Fingerprinting for Frequency Hopping Emitter Identification
Applied Sciences, 2021 In a frequency hopping spread spectrum (FHSS) network, the hopping pattern plays an important role in user authentication at the physical layer. However, recently, it has been possible to trace the hopping pattern through a blind estimation method for ...
Jusung Kang +4 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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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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