Sub-optimal turbo-detection for coded 8-PSK signals over ISI channels with application to EDGE advanced mobile system

Author

Berthet, A. ; Visoz, R. ; Tortelier, P.

Author_Institution

France Telecom R&D, Issy-les-Moulineaux, France

Volume

1

fYear

2000

fDate

2000

Firstpage

151

Abstract

A turbo-detector concept assuring a favorable tradeoff between performance and complexity is investigated for the novel radio access scheme at enhanced data rates for GSM evolution (EDGE). The high level modulation employed in EDGE (8-PSK) precludes MAP or MLSE turbo-detection, and consequently, computationally efficient sub-optimum solutions have to be considered. A turbo-detector based on a generic SISO delayed decision-feedback sequence estimator (DDFSE) is shown to be a very promising candidate, so long as we couple it with a discrete-time allpass pre-filter turning channel impulse response into minimum phase

Keywords

all-pass filters; cellular radio; decoding; equalisers; feedback; filtering theory; intersymbol interference; maximum likelihood sequence estimation; modulation coding; phase shift keying; radio access networks; signal detection; transient response; turbo codes; 8-PSK; BER; EDGE; FER; GSM; MLSE; SISO decoder algorithm; SISO delayed decision-feedback sequence estimator; SISO equalizer algorithms; UMTS; Universal Mobile Telecommunication System; complexity; computationally efficient sub-optimum solutions; data rates; discrete-time allpass pre-filter; high level modulation; minimum phase channel impulse response; performance; radio access interface; sub-optimal turbo-detection; turbo-detector; wideband coded-division multiple access; Convolutional codes; Decoding; Delay estimation; Detectors; Equalizers; Filters; GSM; Intersymbol interference; Maximum likelihood estimation; Phase modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on

Conference_Location

London

Print_ISBN

0-7803-6463-5

Type

conf

DOI

10.1109/PIMRC.2000.881409

Filename

881409