Published 12 issues per year
ISSN Print: 0040-2508
ISSN Online: 1943-6009
Indexed in
EXPERIMENTAL STUDY OF THE ROBUSTNESS OF BISPECTRAL-BASED MODULATION
ABSTRACT
Results of an experimental study of noise immunity of a novel modulation scheme based on bispectrum and triplet signals are presented and discussed. A novel test statistics in the form of peak value of magnitude bispectrum developed for discriminating triplet-signals is developed and studied. Both theoretically derived and experimentally acquired bit error rates are presented and compared for a wide range of bit energy-to-noise spectral density ratio under additive Gaussian noise and multipath fading. A distinctive property of the introduced test statistic is that it is a third-order signal discrimination measure and so enables to extract and indicate such phase dependencies in a priori given in triplet-signals that is not possible for conventional discrimination measure based on second-order statistics, i.e., correlation function and power spectral density estimation. The benefits of the suggested bispectral-based modulation compared to common phase and frequency shift keying are demonstrated and discussed.
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Sklar, B., (2003) , Digital communications: fundamentals and applications, second edition.
-
Alamouti, S.M., (1998) , A simple transmit diversity technique for wireless communications.
-
Varakin, L.E., (1985) , Communication systems using pseudonoise signals.
-
Totsky, A.V. and Naumenko, V.V., (2010) , Noise immunity technique by using bispectral-organized modulation in digital communication system.
-
Zelensky, O.O., Naumenko, V.V., Solodovnik, V.F., and Totsky, O.V., (2012) , Technique for data transmitting.
-
Nikias, C.L. and Raghuveer, M.R., (1987) , Bispectral estimation: A digital signal processing framework.
-
Naumenko, V.V. and Totsky, A.V., (2011) , Optimal reception of bispectral-organized binary signals-triplets in channel with fading.