A carrier phase estimator for multimedia satellite payloads suited to RSC coding schemes

Author

Morlet, Catherine ; Buret, I. Sabelle ; Boucheret, Marie-Laure

Author_Institution

ENST, Toulouse, France

Volume

1

fYear

2000

fDate

2000

Firstpage

455

Abstract

Most of GEO satellite telecommunication systems today aim at providing multimedia access services to low cost and power-limited user terminals by implementing performant regenerative onboard processing techniques (demodulation, routing). In order to meet high QoS performance at low SNR, especially on the satellite uplink, performant coding schemes such as turbo codes are necessary. We focus on the critical point of the on-board demodulator: the carrier phase recovery performed in presence of powerful turbo decoding. Non-data aided (NDA) and TD estimators are presented and analysed in terms of characteristics for transmissions using recursive systematic convolutional (RSC) codes that can be used for turbo codes. We show that TD estimation can operate down to E_c/N₀=0 dB with frequency offset up to 10 ^-3

Keywords

convolutional codes; decoding; demodulators; multimedia communication; parameter estimation; phase estimation; quality of service; satellite communication; turbo codes; GEO satellite telecommunication systems; RSC coding schemes; TD estimation; TD estimator; Viterbi estimator; carrier phase estimator; carrier phase recovery; decision directed estimator; demodulation; frequency offset; high QoS performance; low SNR; low cost user terminals; multimedia access services; multimedia satellite payloads; nondata aided estimator; on-board demodulator; power-limited user terminals; recursive systematic convolutional codes; regenerative onboard processing; routing; satellite uplink; turbo codes; turbo decoding; Artificial satellites; Costs; Decoding; Demodulation; Frequency estimation; Multimedia systems; Payloads; Phase estimation; Routing; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2000. ICC 2000. 2000 IEEE International Conference on

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-6283-7

Type

conf

DOI

10.1109/ICC.2000.853360

Filename

853360