Adaptive soft-decision feedback equalization for indoor radio communications using trellis-coded CPFSK

Author

Zhuang, W. ; Goud, P.A. ; Krzymien, W.A.

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

fYear

1994

fDate

8-10 Jun 1994

Firstpage

1364

Abstract

In this paper, adaptive channel equalization is investigated in order to reduce the bit error rate of trellis-coded continuous-phase frequency shift keying (CPFSK) in an indoor radio environment. A new equalizer structure is proposed, which makes use of fractionally spaced soft-decision signal samples instead of symbol-spaced hard decisions on transmitted symbols in the decision feedback loop, in order to remove the intersymbol interference (ISI) resulting from the frequency-selective fading channel

Keywords

Rayleigh channels; adaptive equalisers; continuous phase modulation; decision feedback equalisers; fading; frequency shift keying; indoor radio; intersymbol interference; trellis coded modulation; adaptive channel equalization; adaptive soft-decision feedback equalization; bit error rate; continuous-phase frequency shift keying; decision feedback loop; equalizer structure; fractionally spaced soft-decision signal samples; frequency-selective fading channel; indoor radio communications; intersymbol interference; symbol-spaced hard decisions; transmitted symbols; trellis-coded CPFSK; Adaptive equalizers; Baseband; Bit error rate; Decision feedback equalizers; Delay; Digital modulation; Envelope detectors; Indoor radio communication; Intersymbol interference; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1994 IEEE 44th

Conference_Location

Stockholm

ISSN

1090-3038

Print_ISBN

0-7803-1927-3

Type

conf

DOI

10.1109/VETEC.1994.345317

Filename

345317