Performance analysis of a ratio-threshold diversity combining scheme in FFH/FSK spread spectrum systems under multitone jamming

TitlePerformance analysis of a ratio-threshold diversity combining scheme in FFH/FSK spread spectrum systems under multitone jamming
Publication TypeConference Paper
Year of Publication1991
AuthorsLi, G., Q. Wang, V. K. Bhargava, and L. J. Mason
Conference NameMilitary Communications Conference, 1991. MILCOM '91, Conference Record, 'Military Communications in a Changing World'., IEEE
Pagination1240 -1244 vol.3
Date Publishednov.
Keywordsadditive white Gaussian noise, band multitone jamming, bit error probabilities, diversity reception, error statistics, fast frequency-hop spread-spectrum systems, FFH/MFSK, frequency shift keying, jamming, M-ary frequency shift keying modulation, nonlinear diversity combining scheme, partial-band noise jamming, spread spectrum communication, Viterbi radio-threshold technique, white noise
Abstract

A nonlinear diversity combining scheme using the Viterbi radio-threshold technique is discussed. The performances of the radio-threshold diversity combiner in fast frequency-hop spread-spectrum systems with M-ary frequency shift keying modulation (FFH/MFSK) under band multitone jamming without and with additive white Gaussian noise are analyzed. The exact bit error probabilities are computed by using an average computation model. The performances under band multitone jamming and under partial-band noise jamming are compared. For binary FSK modulation, the performances under the two types of jamming are almost the same, but for 8-ary FSK modulation, tone jamming is more effective against communications. The structure of the combiner is very simple. Another merit of this combiner is that its output can be directly fed to a soft-decision FEC decoder

URLhttp://dx.doi.org/10.1109/MILCOM.1991.258466
DOI10.1109/MILCOM.1991.258466

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