On the Influence of Pilot Symbol and Data Symbol Positioning on Turbo Synchronization

When realizing carrier frequency offset estimation at low signal-to-noise ratios, a typical feed-forward synchronization unit solely relies on known pilot symbols. The importance of the position of these pilot symbols within the burst has been elaborated on in the literature. In this paper, we discuss the importance of the pilot symbol constellation for iterative code-aided synchronization. Furthermore, we investigate the transmission order of data symbols for a turbo coded system with code-aided synchronization.

[1]  H. Bruneel,et al.  Carrier phase and frequency estimation for pilot-symbol assisted transmission: bounds and algorithms , 2005, IEEE Transactions on Signal Processing.

[2]  D. Rubin,et al.  Maximum likelihood from incomplete data via the EM - algorithm plus discussions on the paper , 1977 .

[3]  Luc Vandendorpe,et al.  Turbo synchronization: an EM algorithm interpretation , 2003, IEEE International Conference on Communications, 2003. ICC '03..

[4]  M.P. Fitz,et al.  Single frequency estimation with non-uniform sampling , 1996, Conference Record of The Thirtieth Asilomar Conference on Signals, Systems and Computers.

[5]  A. Glavieux,et al.  Near Shannon limit error-correcting coding and decoding: Turbo-codes. 1 , 1993, Proceedings of ICC '93 - IEEE International Conference on Communications.

[6]  Heinrich Meyr,et al.  Digital communication receivers , 1997 .

[7]  Cédric Herzet.  Code-aided synchronization for digital burst communications , 2006 .

[8]  Alexandre Graell i Amat,et al.  Analysis and design of rate compatible serial concatenated convolutional codes , 2005, Proceedings. International Symposium on Information Theory, 2005. ISIT 2005..

[9]  Heinrich Meyr,et al.  Digital communication receivers - synchronization, channel estimation, and signal processing , 1997, Wiley series in telecommunications and signal processing.

[10]  Robert Boorstyn,et al.  Single tone parameter estimation from discrete-time observations , 1974, IEEE Trans. Inf. Theory.