Title :
A robust quadrature-overlapped modulation scheme and its performance over nonlinear band-limited channels
Author :
Chen, X.H. ; Oksman, J.
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
A novel quadrature-overlapped modulation with a quasiconstant envelope is presented and studied in the paper. Its performance with coherent detection over band-limited nonlinear satellite channels is compared with MSK and QORC modulations. The results show that the new modulation possesses an ideal BER performance very close to that of MSK (constant-envelope modulation) and much better than that for QORC. In addition, the side lobes of its transmitting signal spectrum roll off very fast
Keywords :
error statistics; modulation; satellite communication; signal detection; telecommunication channels; BER performance; MSK; QORC; band-limited nonlinear satellite channels; coherent detection; nonlinear band-limited channels; quasiconstant envelope; robust quadrature-overlapped modulation scheme; side lobes; transmitting signal spectrum; Bit error rate; Filters; Frequency; Noise shaping; Pulse modulation; Pulse shaping methods; Quadrature phase shift keying; Robustness; Satellite communication; Shape;
Conference_Titel :
Global Telecommunications Conference, 1994. GLOBECOM '94. Communications: The Global Bridge., IEEE
Print_ISBN :
0-7803-1820-X
DOI :
10.1109/GLOCOM.1994.513495
