Results 21 to 30 of about 7,335,937 (186)
Sensors, 2023 Efficiently managing coexistence is crucial for achieving high-quality wireless communication in the Industrial, Scientific, and Medical (ISM) band where multiple wireless communication systems operate.
Ashraf A. Eltholth
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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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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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A Novel Optical Frequency-Hopping Scheme for Secure WDM Optical Communications
IEEE Photonics Journal, 2015 A novel optical frequency-hopping scheme in wavelength-division multiplexing (WDM) systems is proposed to achieve secure communications with high capacity. Frequency hopping is realized by the hopping of digital signals among different channels.
Sun Long Wang +5 more
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IEEE Access, 2019 Robust estimation of frequency hopping radar signal parameters is the key to achieving stable jam in frequency hopping communication. In order to deal with the poor noise resistance performance of conventional time-frequency analysis based parameter ...
Song Wei +5 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
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Design and implementation of coherent FFH generator based on multiple parallel DDS
Dianzi Jishu Yingyong, 2018 For the new types of features of interference such as large interference power, wide frequency band and many styles, the adoption of a coherent fast frequency hopping system can improve the anti-interference ability of wireless communication systems.
Ni Xuanhao, Cong Yanchao, Wu Chunfei
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Soft Decoding Assisted Interference Cancellation in a Non-Binary LDPC Coded Fast Frequency Hopping Multiuser System Using Product Combining [PDF]
, 2007 In this contribution, soft-input-soft-output (SISO) decoding aided successive interference cancellation (SIC) is considered in fast frequency hopping (FFH), M-ary frequency shift keying (MFSK) using product combining (PC), when operating in multiple ...
Ahmed, S, Guo, F, Yang, L-L, Hanzo, L
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Construction of secure adaptive frequency hopping sequence sets based on AES algorithm
IET CommunicationsCommunication security has become particularly crucial with the rapid development of the Internet of Things (IoT). Frequency hopping spread spectrum (FHSS) technology, a prevalent method in wireless communication, has a wide range of applications in the ...
Dongpo Song +3 more
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Frequency hopped CDMA for third generation mobile radio systems [PDF]
, 1993 Third generation mobile radio systems will provide unified mobile access to a wide range of services for the mass user market. Code division multiple access (CDMA) is one of the most viable access techniques to provide the flexible air interface required.
Purle, DJ +3 more
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