A robust frame synchronization scheme for Broadband Power-line Communication

In this paper, several frame synchronization schemes is examined under the scenario of Broadband Power-line Communication (BPL) with their merits and demerits illustrated. A method, mainly based on algorithm proposed by Minn with modification, is proposed and simulated under channels proposed by Open PLC European Research Alliance (OPERA). Threshold is set according to simulations for frame synchronization as well as Physical Protocol Data Unit (PPDU) identification. The proposed estimator has a RMS (Root Mean Square) of start point estimation three orders lower at least in comparison with legacy Schmidl and Cox estimator. Optimization schemes are also proposed to increase the hardware efficiency for the estimator. As much as 75% multiplications could be saved with only a slight degradation in estimation accuracy for the proposed estimator.

[1]  Donald C. Cox,et al.  Robust frequency and timing synchronization for OFDM , 1997, IEEE Trans. Commun..

[2]  Shinji Tanabe,et al.  IEEE 1901 access system: An overview of its uniqueness and motivation , 2010, IEEE Communications Magazine.

[3]  Alexandru Ionuţ Chiuţă,et al.  Theoretical postulation of PLC channel model , 2009 .

[4]  Eleonora Guerrini,et al.  Improved HomePlug AV channel estimation exploiting sounding procedure , 2009, 2009 IEEE International Symposium on Power Line Communications and Its Applications.

[5]  Xiaoyang Zeng,et al.  Low-complexity joint synchronization of symbol timing and carrier frequency for CMMB system , 2009, 2009 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS).

[6]  Khaled Ben Letaief,et al.  A robust timing and frequency synchronization for OFDM systems , 2003, IEEE Trans. Wirel. Commun..