Interstellar communication: The case for spread spectrum [PDF]
Acta Astronautica, 2012 Spread spectrum, widely employed in modern digital wireless terrestrial radio systems, chooses a signal with a noise-like character and much higher bandwidth than necessary. This paper advocates spread spectrum modulation for interstellar communication, motivated by robust immunity to radio-frequency interference (RFI) of technological origin in the ...
Messerschmitt, David G.
openaire +4 more sources
Chua's Circuit in Spread Spectrum Communication Systems [PDF]
Radioengineering, 2002 Communication system via chaotic modulations is demonstrated. Itcontains the well-known chaotic circuits as its basic elements - Chua'scircuits. The proposed system has some standard properties of spreadspectrum communication.
P. Galajda, D. Kocur
doaj +2 more sources
Robust overlapping covert communication against partialband interference via chaotic multi-tone spread spectrum [PDF]
Scientific ReportsThe article presents an overlapping covert communication scheme based on the dynamic adjustment of the spread spectrum factor within a predefined range under a chaotic multi-tone framework, aiming to mitigate partialband interference.
Shengnan Guo, Dongmei Liu, Yongqing Fu
doaj +2 more sources
Long-Range Acoustic Communication Using Differential Chirp Spread Spectrum
Applied Sciences, 2020 Here, we propose a new modulation method using chirp spread spectrum (CSS) modulation to indicate the result of long-range acoustic communication (LRAC).
Joohyoung Lee +3 more
doaj +1 more source
Novel direct sequence spread spectrum communication method
Tongxin xuebao, 2023 In response to the problem of limited performance and low spectral efficiency in complex multipath environments of traditional direct sequence spread spectrum communication, a cyclic prefix (CP) block transmission structure spread spectrum system with a ...
Fanglin GU +5 more
doaj +2 more sources
Secure Spread Spectrum Communication Using Super-Orthogonal Optical Chaos Signals
IEEE Photonics Journal, 2022 This paper proposes an analog spread spectrum secure communication system by designing a super-orthogonal two-dimensional electro-optic time delayed chaotic system.
Qing Chen +3 more
doaj +1 more source
A chaotic spread spectrum system for underwater acoustic communication [PDF]
, 2017 The work is supported in part by NSFC (Grant no.
Bai, Chao +4 more
core +1 more source
Analysis and comparison of code index modulation and multi-ary spread spectrum
Dianzi Jishu Yingyong, 2018 In the current anti-jamming communication, the spread spectrum communication has been studied deeply with the advantages of strong anti-jamming ability and good security performance.
Feng Sheng +4 more
doaj +1 more source
Multilevel cyclic shift index differential chaos shift keying system for high data rate transmission
IET Communications, 2023 This paper proposes a multilevel cyclic shift index modulation aided differential chaotic shift keying (MCSI‐DCSK) system to improve data rate and energy efficiency.
Zixian Lin, Weikai Xu, Lin Wang
doaj +1 more source
Modulation parameter estimation of LFM interference for direct sequence spread spectrum communication system in alpha-stable noise [PDF]
, 2021 The linear frequency modulation (LFM) interference is one of the typical broadband interferences in direct sequence spread spectrum (DSSS) communication system.
Chen, Yunfei +5 more
core +1 more source