Results 31 to 40 of about 7,335,937 (187)

Blind Compressed Sensing Parameter Estimation of Non-cooperative Frequency Hopping Signal

open access: yesLeida xuebao, 2016
To overcome the disadvantages of a non-cooperative frequency hopping communication system, such as a high sampling rate and inadequate prior information, parameter estimation based on Blind Compressed Sensing (BCS) is proposed.
Chen Ying, Zhong Fei, Guo Shuxu
doaj   +1 more source

Sets of Wide-Gap Frequency-Hopping Sequence With Optimal Maximum Hamming Correlation

open access: yesIEEE 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
doaj   +1 more source

Hybrid Precoding Aided Fast Frequency-Hopping for Millimeter-Wave Communication

open access: yesIEEE Access, 2021
The deployment of the Millimeter-Wave (mm-Wave) band in 5G and beyond wireless communications networks is one of the emerging fields owing to its potential of providing extensive bandwidth.
Abbas Ahmed   +4 more
doaj   +1 more source

On the Research of Adaptive Frequency Hopping in the Wireless Communication [PDF]

open access: yesProceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013), 2013
The multipath fading and interference problems in the wireless communication lead to the link quality decrease severely. However, the conventional frequency hopping scheme cannot solve the problems in an effective way. Adaptive frequency hopping scheme, which is based on the automatically link quality analysis, can avoid the bad frequencies and ...
Xiao Hu Liang, Lei Cheng
openaire   +1 more source

Slow Frequency-Hopping Multicarrier DS-CDMA for Transmission over Nakagami Multipath Fading Channels

open access: yes, 2001
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 narrowband CDMA ...
Yang, L-L., Hanzo, L.
core   +1 more source

A Method for Dynamically Selecting the Best Frequency Hopping Technique in Industrial Wireless Sensor Network Applications

open access: yesSensors, 2018
Industrial wireless applications often share the communication channel with other wireless technologies and communication protocols. This coexistence produces interferences and transmission errors which require appropriate mechanisms to manage ...
Erlantz Fernández de Gorostiza   +3 more
doaj   +1 more source

Simulation and Analysis of Frequency Hopping Communication Jamming

open access: yesJournal of Physics: Conference Series, 2020
Abstract In modern warfare, the victory of electronic warfare has become one of the key factors affecting the victory of war. It is an important part of electronic warfare that high-efficiency jamming is used to interfere with enemy frequency hopping (FH) communication systems.
Xiaolu Zhang   +3 more
openaire   +1 more source

Performance Analysis of Interferometer Direction of Arrival Estimation under Frequency Mismatch of Array Manifold: DOA of Frequency Hopping Signal

open access: yesApplied Sciences, 2020
We consider the direction of arrival (DOA) estimation of the frequency hopping (FH) signal. The frequency hopping (FH) signal has been widely used for communication to control UAVs.
Chan-Bin Ko, Joon-Ho Lee
doaj   +1 more source

Index modulation aided frequency hopping anti-jamming and encryption method based on rotation scrambling

open access: yesTongxin xuebao, 2021
In order to improve the anti-jamming ability and security of the wireless communication system, an index frequency-hopping anti-interference encryption method based on rotation scrambling was designed, which could be simply called encrypted index ...
Xinjin LU, Jing LEI, Yuxin SHI
doaj   +2 more sources

Iterative Decoding and Soft Interference Cancellation in Fast Frequency Hopping Multiuser System Using Clipped Combining

open access: yes, 2007
Iterative decoding (ID) aided fast frequency hopping (FFH), M-ary frequency shift keying (MFSK) using clipped combining in multiple access (MA) channels is investigated. All users’ data are convolutionally encoded and the encoded bits are interleaved and
Ng, S.X.   +7 more
core   +2 more sources

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