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Performance Comparison of FFH and MCFH Spread-Spectrum Systems with Optimum Diversity Combining in Frequency-Selective Rayleigh Fading Channels

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Authors
Shin, Oh-Soon; Lee, Kwang Bok
Issue Date
2001-03
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
IEEE Trans. Commun., vol. 49, no. 3, pp. 109-416, Mar. 2001
Keywords
Diversity methodsfrequency-hop communicationfrequency-selective Rayleigh fadingfrequency-shift keyingspread-spectrum communication
Description
Paper approved by Z. Kostic, the Editor for Wireless Communication of the IEEE Communications Society. Manuscript received June 5, 1999; revised May 12, 2000.

This paper was presented in part at the 10th IEEE Symposium on Personal, Indoor and
Mobile Radio Communications (PIMRC’99), Osaka, Japan, September 1999.
Abstract
In this letter, the performance of frequency-hopping
spread-spectrum systems employing noncoherent reception and
transmission diversity is analyzed for frequency-selective Rayleigh
fading channels. Two different types of transmission diversity systems,
a fast frequency-hopping (FFH) system and a multicarrier
frequency-hopping (MCFH) system, are investigated. In order to
combine received signals from transmit diversity channels, the optimum
diversity combining rule based on the maximum-likelihood
criterion is developed. Probability of error equations are derived,
and utilized to evaluate the performance of the two systems.
MCFH systems are found to outperform FFH systems when the
channel delay spread is severe, while FFH systems are superior
to MCFH systems when a channel varies rapidly. Furthermore,
it is found that performance enhancement due to an increase of
diversity order is more significant for MCFH systems than for
FFH systems in frequency-selective fading channels. The effect
of frequency-selective fading is also investigated in determining
optimum frequency deviations of binary frequency-shift keying
signals.
ISSN
0090-6778
Language
English
URI
http://hdl.handle.net/10371/7448
DOI
https://doi.org/10.1109/26.911447
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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