Extension of the N-OFDM method to the case of orthogonally polarized signals
AbstractThe paper considers a data transmission method in radio relay communication systems based on the use of nonorthogonal frequency discrete modulation (N-OFDM) of signals in combination with their orthogonal polarization. Synthesis of demodulation procedure of N-OFDM signals is conducted with regard for the presence of cross-polarization interference. In order to analyze the potentialities of the procedure synthesized, it is proposed to employ the well-known procedure of calculating the Cramer-Rao lower bound for variance of potentially achievable errors at measurement of quadrature components of signal amplitudes.
SLYUSAR, V.I.; SMOLYAR, V.G. "Communication channels frequency multiplexing on the basis of superrayleigh signals resolution," Radioelectron. Commun. Syst., v.46, n.7, p.30-39, 2003.
SLYUSAR, V.I.; SMOLYAR, V.G. "The method of nonorthogonal frequency-discrete modulation of signals for narrow-band communication channels," Radioelectron. Commun. Syst., v.47, n.4, p.40-44, 2004. URI: http://radioelektronika.org/article/view/S0735272704040089.
ERCEG, VINKO; SOMA, PITCHAIAH; BAUM, DANIEL S.; CATREUX, SEVERINE. "Multiple-input multiple-output fixed wireless radio channel measurements and modeling using dual-polarized antennas at 2.5 GHz," IEEE Trans. Wireless Commun., v.3, n.6, p.2288-2298, 2004. DOI: http://dx.doi.org/10.1109/TWC.2004.837298.
NABAR, R.U. "MIMO Channel Models," Lecture, Communication Technology Laboratory, Zurich, http://www.nari.ee.ethz.ch/commth/teaching/mimo/lect3.pdf.
SLYUSAR, V.I. "Generalized face-splitting matrix products in models of digital antenna arrays with nonidentical channels," Radioelectron. Commun. Syst., v.46, n.10, p.15-26, 2003.
SLYUSAR, V.I. "Fisher information matrix for models of systems based on face-splitting matrix products," Cybern. Syst. Anal., v.35, n.4, p.636-643, 1999. DOI: https://doi.org/10.1007/BF02835859.