Title :
The performance of dually polarized M-QAM and L-QPRS systems with crosstalk and differential phase shift
Author :
Cartwright, K.V. ; Kaminsky, E.J. ; Williamson, E.P. ; Duvoisin, P.F. ; Hsieh, S.T.
Author_Institution :
Dept. of Electr. Eng., Tulane Univ., New Orleans, LA, USA
Abstract :
The probability of symbol error (PE) performance is studied for cross-polarized M-QAM (M-ary quadrature amplitude modulation) and L-QPRS (L-ary quadrature partial response signal) systems operating in the depolarization crosstalk and differential phase shift environment. Explicit general formulas are provided and results presented for dual-channel 4-QAM (QPSK-quadrature phase-shift keying) and 9-QPRS. It is demonstrated that the PE varies with a period of 90° with differential phase shift and that L-QPRS systems are less sensitive to differential phase shift than the corresponding M-QAM systems; the sensitivity is measured by the ratio of maximum to minimum PE
Keywords :
amplitude modulation; crosstalk; electromagnetic wave polarisation; error statistics; phase shift keying; probability; 9-QPRS; L-QPRS; L-ary quadrature partial response signal; M-ary quadrature amplitude modulation; cross-polarized M-QAM; depolarization crosstalk; differential phase shift; digital communication systems; dual polarised systems; dual-channel 4-QAM; formulas; performance; sensitivity; symbol error probability; AWGN; Crosstalk; Filtering; Interchannel interference; Polarization; Quadrature amplitude modulation; Quadrature phase shift keying; Satellites; Signal to noise ratio; Upper bound;
Conference_Titel :
Southeastcon '91., IEEE Proceedings of
Conference_Location :
Williamsburg, VA
Print_ISBN :
0-7803-0033-5
DOI :
10.1109/SECON.1991.147917
