Trellis-coded continuous-phase modulation for satellite-based mobile communications

Author

Abrishamkar, Farrokh ; Biglieri, Ezio

Author_Institution

Technol. Group, Los Angeles, CA, USA

fYear

1988

fDate

28 Nov-1 Dec 1988

Firstpage

1155

Abstract

The authors consider a satellite-based mobile communication scheme based on continuous-phase modulated (CPM) signals used in conjunction with trellis-coded modulation (TCM). This scheme provides a power saving due to the coding gain of TCM, and simultaneously a reduced bandwidth occupancy due to the particular structure of CPM signals. Moreover, CPM provides constant-envelope signals, which is a requirement for satellite transponders operating in a time-division multiple-access mode. To keep the complexity manageable, a detection scheme based on differential detection of CPM is used. They describe the system and its performance, and then they investigate how to estimate the frequency shift induced in the received signal by the Doppler effect

Keywords

Doppler effect; encoding; error detection codes; mobile communication systems; phase modulation; satellite relay systems; CPM signals; Doppler effect; coding gain; constant-envelope signals; continuous phase modulation; differential detection; frequency shift; received signal; satellite transponders; satellite-based mobile communications; time-division multiple-access; trellis-coded modulation; Bandwidth; Communications technology; Convolutional codes; Demodulation; Mobile communication; Modulation coding; Power system reliability; Satellites; Speech analysis; Transponders;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1988, and Exhibition. 'Communications for the Information Age.' Conference Record, GLOBECOM '88., IEEE

Conference_Location

Hollywood, FL

Type

conf

DOI

10.1109/GLOCOM.1988.26015

Filename

26015