QPSK carrier and bit-timing simultaneous recovery scheme for coherent demodulation

Author

Nagura, Takeyuki ; Matsumoto, Yoichi ; Kubota, Shuji ; Kat, Shuzo

Author_Institution

NTT Wireless Syst. Labs., Kanagawa, Japan

Volume

3

fYear

1995

fDate

18-22 Jun 1995

Firstpage

1636

Abstract

This paper proposes a new carrier and bit-timing simultaneous recovery scheme, which works with quadrature phase shift keying (QPSK) signals. The proposed scheme uses popular preamble words for simultaneous carrier recovery and bit-timing recovery. Simulation results demonstrate that the proposed scheme greatly reduces the required preamble length to about 20 symbols in low Eb/No channels and fading channels. The proposed scheme is very beneficial for time division multiple access (TDMA) systems that works with QPSK signals

Keywords

demodulation; fading; quadrature phase shift keying; time division multiple access; timing; QPSK carrier recovery; QPSK signals; TDMA systems; bit timing simultaneous recovery; coherent demodulation; fading channels; preamble words; quadrature phase shift keying; simulation results; time division multiple access; Bit error rate; Circuits; Demodulation; Forward error correction; Phase estimation; Quadrature phase shift keying; Satellite communication; Signal processing; Time division multiple access; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1995. ICC '95 Seattle, 'Gateway to Globalization', 1995 IEEE International Conference on

Conference_Location

Seattle, WA

Print_ISBN

0-7803-2486-2

Type

conf

DOI

10.1109/ICC.1995.524478

Filename

524478