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In industrial and utility power system it has been observed that harmonics build a major role in reducing the quality of power. These harmonics are caused because of increasingly utilize of nonlinear loads connected to the power system. In this context, active power filters play a very significant role for improvement in power quality. Moreover, at transmission ground, there is a high requirement to control reactive power and voltage stability. Conventionally, passive and active filters (shunt and series filters) were used for the development of power quality. But, they suffered from the issues like resonance, fixed compensation, and other heating networks are commonly addressed in the literature as one of the most effective solutions for decreasing the designed.

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To increase data rate of wireless medium with higher performance, OFDM (orthogonal frequency division multiplexing) is used. Here DWT (Discrete wavelet transforms) is adopted in place of FFT (Fast Fourier transform) for frequency translation. Modulation schemes such as 16-QAM (Quadrature amplitude modulation) have been used in the development of OFDM system using DWT. In this paper, I propose a DWT-IDWT based OFDM transmitter and receiver .It has been proven that all the wavelet families better over the IFFT-FFT implementation.. The wavelet filter used in the project is Bi-orthoganal (9,7) with N=2. The Project also include implementation of Digital Up Converter and Digital Down Converter at the transmitter and receiver part respectively. The project is implemented on FPGA by designing using Verilog HDL and System Generator.