Performance Improvement of a High Mobility Vehicular Communications System Using Fuzzy-Decision Viterbi Decoder

Author

Mar, Jeich ; Kuo, Chi-Cheng

Author_Institution

Dept. of Commun. Eng., Yuan-Ze Univ., Chung-li

fYear

2006

fDate

38869

Firstpage

1083

Lastpage

1086

Abstract

A fuzzy-decision Viterbi decoder is proposed for a dedicated short-range communications (DSRC) system to combat the effect of a time-varying fading channel. The performance of the DSRC system using the proposed fuzzy-decision Viterbi decoder is compared with both the hard-decision and soft-decision Viterbi decoder. The simulation results show that the gain in performance of the proposed fuzzy-decision Viterbi decoder with respect to the hard-decision and soft-decision Viterbi decoder is significantly increased

Keywords

Viterbi decoding; channel coding; decision theory; fading channels; fuzzy systems; mobile radio; time-varying channels; DSRC; dedicated short-range communications system; fuzzy-decision Viterbi decoder; high mobility vehicular communications system; time-varying fading channel; Binary phase shift keying; Convolution; Decoding; Fading; Frequency synchronization; Fuzzy systems; OFDM; Physical layer; Time varying systems; Viterbi algorithm; DSRC; frequency synchronizer; fuzzy-decision Viterbi decoder; time-varying fading channel;

fLanguage

English

Publisher

ieee

Conference_Titel

ITS Telecommunications Proceedings, 2006 6th International Conference on

Conference_Location

Chengdu

Print_ISBN

0-7803-9587-5

Electronic_ISBN

0-7803-9587-5

Type

conf

DOI

10.1109/ITST.2006.288775

Filename

4068774