Code Synchronization Error Control Scheme by Correlation of Received Sequence in Phase Rotating Modulation

Hideki YOSHIKAWA  Ikuo OKA  Chikato FUJIWARA  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.8   pp.1873-1879
Publication Date: 2000/08/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
code synchronization error,  symbol deletion/insertion,  phase rotating modulation,  correlation,  

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It is known that cycle slip due to frequency selective fading causes a burst error by symbol deletion or insertion, and has a serious effect on mobile radio communication systems. In this paper, first, we show that phase rotating modulation is suitable for code synchronization error detection. Next, we consider a code synchronization controller using correlation estimator of received sequence, and the controller combines the estimator with 2π/3-shifted modulation to construct a new code synchronization error control scheme as a cycle slip cancelling system. Furthermore, we apply the scheme to the multilevel trellis coded modulation (TCM). Finally, computer simulation results confirm that proposed scheme is capable of code synchronization error correction.