Continuous phase modulation of spectrally efficient FQPSK signals

Author

Park, Hyung Chul ; Lee, Kwyro ; Feher, Kamilo

Author_Institution

Hynix Semicond. Inc., Seoul, South Korea

Volume

1

fYear

2003

fDate

6-9 Oct. 2003

Firstpage

692

Abstract

A continuous phase modulation (CPM) implementation alternative of a recently standardized class of Feher-patented quadrature phase-shift keying (FQPSK-B) modulation is proposed. It is based on the fact that the FQPSK-B signal has quasi-constant amplitude and continuous phase characteristics, allowing CPM interpretation. Based on this, we derive the modulation index, premodulation filter and alternating change monitor differential encoder for the CPM generated FQPSK-B signal, to be fully compatible with the original I/Q-modulated one. It is shown that the power spectral density and the bit error rate performance of the CPM generated FQPSK-B signal are almost the same as those of the I/Q modulated FQPSK-B signal.

Keywords

continuous phase modulation; error statistics; quadrature phase shift keying; CPM; FQPSK-B modulation; Feher-patented quadrature phase-shift keying; I/Q modulation; alternating change monitor differential encoder; bit error rate performance; continuous phase characteristics; continuous phase modulation; modulation index; power spectral density; premodulation filter; quasi-constant amplitude characteristics; spectrally efficient FQPSK signals; Bandwidth; Bit error rate; CADCAM; Computer aided manufacturing; Continuous phase modulation; Filters; Quadrature phase shift keying; Signal generators; Signal synthesis; Telemetry;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th

ISSN

1090-3038

Print_ISBN

0-7803-7954-3

Type

conf

DOI

10.1109/VETECF.2003.1285107

Filename

1285107