Robust synchronization algorithm for broadband PLC based on Wavelet-OFDM

In recent years, communications systems through mains, known as PLC (Powerline Communication), have received a lot of interest as part of intelligent networks or smart grids, as well as for multimedia applications at homes. In broadband PLC, systems using multicarrier modulations allow the mitigation of selective frequency fading in the channel. Nevertheless, these modulations require accurate time synchronization for correct operation. This paper proposes a robust temporal synchronization algorithm based on multilevel complementary sequences for broadband PLC channel with selective frequency fading, providing improvements around 80% in RMSE (Root Mean Squared Error) with respect to the common metrics used in OFDM (Orthogonal Frequency Division Multiplexing), where multipath effect is not considered.

[1]  Antonio Cort,et al.  Analysis of the Indoor Broadband Power-Line Noise Scenario , 2010 .

[2]  Chen Chen,et al.  A robust frame synchronization scheme for Broadband Power-line Communication , 2011, 2011 9th IEEE International Conference on ASIC.

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

[4]  Francisco Javier Cañete,et al.  Analysis of the Indoor Broadband Power-Line Noise Scenario , 2010, IEEE Transactions on Electromagnetic Compatibility.

[5]  Álvaro Hernández,et al.  FPGA-based implementation of a filter bank-based transmultiplexer for multicarrier communications , 2014, Proceedings of the 2014 IEEE Emerging Technology and Factory Automation (ETFA).

[6]  Jesús Ureña,et al.  Generation and Correlation Architectures of Multilevel Complementary Sets of Sequences , 2013, IEEE Transactions on Signal Processing.

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

[8]  A. M. Tonello,et al.  A Fitting Algorithm for Random Modeling the PLC Channel , 2012, IEEE Transactions on Power Delivery.

[9]  Thierry Pollet,et al.  Synchronization with DMT modulation , 1999, IEEE Commun. Mag..

[10]  Mark A Beach,et al.  Robust OFDM timing synchronisation , 2005 .

[11]  K. Dostert,et al.  Analysis and modeling of impulsive noise in broad-band powerline communications , 2002 .

[12]  Steve McLaughlin,et al.  Robust OFDM Timing Synchronisation , 2006, 2006 IEEE 63rd Vehicular Technology Conference.

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

[14]  Kazuyoshi Itoh,et al.  Wavelength- and Time-Selective Reconfigurable Optical Add/Drop Multiplexer Using Time-Frequency Domain Processing , 2010, EURASIP J. Adv. Signal Process..

[15]  Fernando Cruz-Roldán,et al.  Efficient implementation of nearly perfect reconstruction FIR cosine-modulated filterbanks , 2004, IEEE Transactions on Signal Processing.

[16]  Markku Renfors,et al.  Pilot-Based Synchronization and Equalization in Filter Bank Multicarrier Communications , 2010, EURASIP J. Adv. Signal Process..

[17]  Mario Tanda,et al.  Data-aided synchronization for OFDM/OQAM systems , 2012, Signal Process..

[18]  Andrea M. Tonello,et al.  Wideband Impulse Modulation and Receiver Algorithms for Multiuser Power Line Communications , 2007, EURASIP J. Adv. Signal Process..

[19]  Luís Díez del Río,et al.  Analysis and Design of Timing Recovery Schemes for DMT Systems over Indoor Power-Line Channels , 2007, EURASIP J. Adv. Signal Process..

[20]  Khaled Fazel,et al.  Multi-Carrier and Spread Spectrum Systems , 2003 .

[21]  S. Galli,et al.  Advanced signal processing for PLCs: Wavelet-OFDM , 2008, 2008 IEEE International Symposium on Power Line Communications and Its Applications.