Coded nonlinear continuous phase modulation

Author

Fonseka, John P. ; Mao, Tom R.

Author_Institution

Sch. of Eng. & Comput. Sci., Texas Univ., Richardson, TX, USA

fYear

1992

fDate

1-3 April 1992

Firstpage

218

Lastpage

223

Abstract

A class of nonlinear continuous phase modulation (CPM) signals is introduced by extending nonlinear continuous phase frequency shift keying (CPFSK) signals. Coding is considered to further improve the performance of nonlinear CPM signals. Numerical results indicate that both uncoded and coded CPM signals achieve attractive minimum Euclidean distances. Gains of over 1.8 dB over previous schemes have been reported at the same number of states. The spectral properties of nonlinear CPM signals are kept close to those of full response linear CPM with a modulation index of 0.5. It is shown that both uncoded and coded nonlinear CPM signals can be realized by using a finite state machine and a standard FM modulator.<>

Keywords

finite automata; frequency shift keying; phase modulation; FM modulator; coded nonlinear continuous phase modulation; finite state machine; minimum Euclidean distances; modulation index; nonlinear continuous phase frequency shift keying; AWGN; Automata; Baseband; Code standards; Computer science; Continuous phase modulation; Euclidean distance; Frequency; Maximum likelihood detection; Phase detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers and Communications, 1992. Conference Proceedings., Eleventh Annual International Phoenix Conference on

Conference_Location

Scottsdale, AZ, USA

Print_ISBN

0-7803-0605-8

Type

conf

DOI

10.1109/PCCC.1992.200561

Filename

200561