FPGA Implementation of Low Power DTCWT Based OFDM Architecture for Smart Meters

One of the components in Advanced Metering Infrastructure is the Smart Meters. Smart meters are deployed in every house hold connected to the smart grid for periodic data logging and it is expected that by 2020 there will be 100 million smart meter users. Every smart meter will log power signal data, compress the data and modulate the data for transmission. OFDM is the preferred modulation scheme in smart meter. In this paper low power and high speed architectures for OFDM architecture is designed and implemented on FPGA platform. The OFDM architecture design based on DTCWT scheme operates at maximum frequency of 280 MHz, consuming less than 3 W of power occupying less than 10% of Virtex-5 FPGA resources. The OFDM architecture is designed to be reconfigurable and can be used as IP core.

[1]  Nick Kingsbury,et al.  The dual-tree complex wavelet transform: a new technique for shift invariance and directional filters , 1998 .

[2]  Bala Venkatesh,et al.  Smart metering and functionalities of smart meters in smart grid - a review , 2015, 2015 IEEE Electrical Power and Energy Conference (EPEC).

[3]  Nidal Kamel,et al.  Performance Analysis of a Novel OFDM System Based on Dual - Tree Complex Wavelet Transform (DT-CWT) , 2009 .

[4]  B. Nauwelaers,et al.  Wavelet packet based multicarrier modulation , 2000, IEEE Benelux Chapter on Vehicular Technology and Communications. Symposium on Communications and Vehicular Technology. SCVT-2000. Proceedings (Cat. No.00EX465).

[5]  Nick G. Kingsbury,et al.  Design of Q-shift complex wavelets for image processing using frequency domain energy minimization , 2003, Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429).

[6]  Langis Gagnon,et al.  Application of Complex Daubechies' Wavelets to Numerical Simulation of a Nonlinear Signal Propagation Model , 1994, IEEE Seventh SP Workshop on Statistical Signal and Array Processing.

[7]  Bahram Honary,et al.  Power line communications: state of the art and future trends , 2003, IEEE Commun. Mag..

[8]  Y. Ben-Ezra,et al.  Application of Complex Wavelet Packet Transform (CWPT) in Coherent Optical OFDM (CO-OFDM) Communication Systems , 2014 .

[9]  Li Lin,et al.  Smart Meters in Smart Grid: An Overview , 2013, 2013 IEEE Green Technologies Conference (GreenTech).

[10]  Matthias Pätzold,et al.  Novel study on PAPRs reduction in wavelet-based multicarrier modulation systems , 2007, Digit. Signal Process..

[11]  M KaimalAnju,et al.  Visualization And Performance Evaluation Of DT-CWT Based OFDM Systems In Linear Algebra Perspective , 2012 .

[12]  Petri Mähönen,et al.  Wavelet packet modulation for wireless communications , 2005, Wirel. Commun. Mob. Comput..

[13]  Zahir M. Hussain,et al.  Studies on DWT-OFDM and FFT-OFDM systems , 2009 .

[14]  E. Gunawan,et al.  Performance analysis of OFDM systems for broadband power line communications under impulsive noise and multipath effects , 2005, IEEE Transactions on Power Delivery.