Title :
Performance comparison of digital modulation schemes with respect to phase noise spectral shape
Author :
Iqbal, Mahboob ; Jeongseon Lee ; Kim, Kiseon
Author_Institution :
Dept. of Inf. & Commun., Kwangju Inst. of Sci. & Technol., South Korea
Abstract :
The effect of the shape of the phase noise of oscillators on the performance of digital communication systems employing the various modulation schemes such as BPSK, QPSK, QAM and 2DPSK are investigated. The phase noise model used comprises of white phase noise, white frequency noise, and flicker frequency noise components. The dB penalty due to all phase noise components of the spectral shape of the phase noise is evaluated separately. The performance degradation of the system is compared for the normalized frequency offset and normalized spectrum magnitude for these modulation schemes. Besides, the performance degradation is investigated with respect to transmission rate and phase noise spectrum magnitude for the QPSK system
Keywords :
circuit noise; differential phase shift keying; flicker noise; oscillators; phase noise; quadrature amplitude modulation; quadrature phase shift keying; spectral analysis; white noise; 2DPSK; BPSK; QAM; QPSK; digital communication systems; digital modulation; flicker frequency noise; normalized frequency offset; normalized spectrum magnitude; oscillators; performance comparison; phase noise components; phase noise model; phase noise spectral shape; phase noise spectrum magnitude; system performance degradation; transmission rate; white frequency noise; white phase noise; 1f noise; Degradation; Digital communication; Digital modulation; Frequency; Noise shaping; Oscillators; Phase noise; Quadrature phase shift keying; Shape;
Conference_Titel :
Electrical and Computer Engineering, 2000 Canadian Conference on
Conference_Location :
Halifax, NS
Print_ISBN :
0-7803-5957-7
DOI :
10.1109/CCECE.2000.849587
