Convolutional coding system with tone calibrated technique for land mobile radio communication

Author

Chen, Yuh-Long ; Wei, Che-Ho

Author_Institution

Inst. of Electron., Nat. Chiao Tung Univ., Hsin-Chu, Taiwan

fYear

1990

fDate

24-27 Sep 1990

Firstpage

73

Abstract

A data transmission system which combines convolutional coding with interleaving and modulation using the tone calibrated technique (TC) is presented for combating multipath fading usually encountered in land-mobile communication channels. By extracting and processing the faded pilot tone, coherent demodulation of the signal and soft-decision Viterbi decoding which channel amplitude measurement can be performed. The irreducible error rate is also reduced and good error performance is obtained. The performance in land mobile radio channels of the system is analyzed. Numerical results for the system with rate 1/2 optimum codes of constraint length k=3 to 7 are also provided

Keywords

calibration; data communication systems; decoding; demodulation; error correction codes; fading; mobile radio systems; telecommunication channels; coherent demodulation; convolutional coding; data transmission system; error performance; interleaving; land mobile radio channels; land mobile radio communication; modulation; multipath fading; soft-decision Viterbi decoding; tone calibrated technique; Communication channels; Convolution; Convolutional codes; Data communication; Data mining; Demodulation; Fading; Interleaved codes; Modulation coding; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Communication Systems, 1990. IEEE TENCON'90., 1990 IEEE Region 10 Conference on

Print_ISBN

0-87942-556-3

Type

conf

DOI

10.1109/TENCON.1990.152569

Filename

152569