Title :
Comparison between quadrature- and polar-modulation switching-mode transmitter with pulse-density modulation
Author :
Izumi, H. ; Kojima, Masaru ; Umeda, Yohtaro ; Takyu, Osamu
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ. of Sci., Noda, Japan
Abstract :
This paper presents the performance of the quadrature modulation (QM) transmitter when compared with the (PM) transmitter. So as to evaluate the substantive power efficiency in both transmitters, the effective demodulation power efficiency (EDPE) is proposed as a novel figure of merit for transmitters. Computer simulation reveals that the EDPE for a QM transmitter is lower than that for a PM transmitter. In addition, D/U for a QM transmitter is higher than the one for PM transmitter due to lower quantization noise. As a result, the EVMs for a QM transmitter is higher than the one for a PM transmitter.
Keywords :
mobile communication; pulse modulation; radio transmitters; D-U; EDPE; PM transmitter; QM transmitter; computer simulation; effective demodulation power efficiency; figure of merit; mobile communication transmitter; polar-modulation switching-mode transmitter; pulse-density modulation; quadrature-modulation switching-mode transmitter; quantization noise; Band-pass filters; Frequency modulation; Integrated circuits; Radio frequency; Switches; Transmitters; Delta-sigma modulation; Effective demodulation power efficiency; Polar modulation; Pulse density modulation; Quadrature modulation; Transmitter;
Conference_Titel :
Advanced Communication Technology (ICACT), 2013 15th International Conference on
Conference_Location :
PyeongChang
Print_ISBN :
978-1-4673-3148-7
