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

Abstract

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.