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2011
Frequency hopping is the periodic changing of the carrier frequency of a transmitted signal. This time-varying characteristic potentially endows a communication system with great strength against interference. Whereas a direct-sequence system relies on spectral spreading, spectral despreading, and filtering to suppress interference. the basic mechanism
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Frequency hopping is the periodic changing of the carrier frequency of a transmitted signal. This time-varying characteristic potentially endows a communication system with great strength against interference. Whereas a direct-sequence system relies on spectral spreading, spectral despreading, and filtering to suppress interference. the basic mechanism
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Proceedings of IEEE Vehicular Technology Conference (VTC), 2002
The GSM system of today is evolving towards smaller cells and higher traffic capacity. The need for microcell and even picocell systems will be greatly increased in the near future. One of the most important factors will then be to provide high traffic capacity and to provide an easy way of performing frequency planning for the system operator. In this
Caisa Carneheim +4 more
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The GSM system of today is evolving towards smaller cells and higher traffic capacity. The need for microcell and even picocell systems will be greatly increased in the near future. One of the most important factors will then be to provide high traffic capacity and to provide an easy way of performing frequency planning for the system operator. In this
Caisa Carneheim +4 more
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Maximal length sequences for frequency hopping
IEEE Journal on Selected Areas in Communications, 1990Normally, frequency hopping sequences for spread-spectrum communication systems are obtained by selecting groups of elements of binary m sequences. An alternative to using groups of binary m-sequence elements is developed. It involves obtaining nonbinary m sequences with the number of desired hopping frequencies equal to the number of symbols in the ...
John J. Komo, Shyh-Chang Liu
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Jamming statistics-dependent frequency hopping
MILCOM 2016 - 2016 IEEE Military Communications Conference, 2016This paper studies a jamming statistics-dependent frequency-hopping (FH) pattern generation scheme. Most existing FH patterns are determined by two encryption keys: (a) one for FH in the frequency domain, and (b) the other for time permutation in the time domain. These keys are independent of channel conditions.
Matthew Hannon +3 more
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Mobile frequency-hopping CDMA systems
IEEE Transactions on Communications, 2000Through analysis and simulation, a unified evaluation of the potential performance of both mobile peer-to-peer and sectorized cellular frequency-hopping code-division multiple-access (CDMA) systems is presented. The equivalent number of frequency channels and the minimum area-mean signal-to-noise ratio are defined and shown to be important parameters ...
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Constructions of Optimal Uniform Wide-Gap Frequency-Hopping Sequences
IEEE Transactions on Information Theory, 2022Cuiling Fan +2 more
exaly
A Class of Optimal Frequency Hopping Sequences with New Parameters
IEEE Transactions on Information Theory, 2012Xiaohu Tang, Xiangyong Zeng, Han Cai
exaly
Optimal Frequency Hopping Sequences of Odd Length
IEEE Transactions on Information Theory, 2013Xiaohu Tang, Xiangyong Zeng, Han Cai
exaly