Title :
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
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;
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
DOI :
10.1109/ITST.2006.288775
