Title :
Some results on the spectral efficiency improvement in partial response CPM systems
Author :
Campanella, Matteo ; Faso, Umberto Lo ; Mamola, Giovanni
Author_Institution :
Dept. of Electr. Eng., Palermo Univ., Italy
Abstract :
The problem of the determination of the pulse shape in partial-response constant envelope CPM (continuous phase modulation) systems with binary signaling to furnish optimum spectral behavior with a prescribed bit error rate performance is studied. The spectral performance is characterized by the effective bandwidth of the modulated signal. The minimum Euclidean distance is used to measure the error probability. The procedure is based on an approximation which is valid when the minimum Euclidean distance required is small, so that the effective bandwidth can be made particularly narrow. The general shape of the optimum baseband pulse can be expressed in closed form. Numerical results are reported and comparisons with standard pulses are discussed
Keywords :
error statistics; phase modulation; binary signaling; bit error rate performance; continuous phase modulation; error probability; minimum Euclidean distance; optimum baseband pulse; optimum spectral behavior; partial-response constant envelope; pulse shape; spectral performance; Bandwidth; Baseband; Bit error rate; Error probability; Euclidean distance; Power measurement; Pulse measurements; Pulse shaping methods; Shape; Signal to noise ratio;
Conference_Titel :
Aerospace and Electronics Conference, 1989. NAECON 1989., Proceedings of the IEEE 1989 National
Conference_Location :
Dayton, OH
DOI :
10.1109/NAECON.1989.40191
