WIMAX based on wavelet transform and phase matrix in multipath fading channel

الملخص EN

In this paper a proposed technique is used to improve the performance of Multicarrier Code Division Multiple Access WIMAX based on Discrete Multiwavelet Transform Critically Sampling DWT and Phase Matrix (PM) under the Additive White Gaussian Noise AWGN channel flat fading and frequency selective fading channels.

This model is used to reduce the effect of multipath fading.

The proposed model depends on multiplying the transmitted signal by a generated Phase Matrix (PM) at the transmitter side, and the inverse of phase matrix at the receiver side.

The results extracted by a computer simulation for a single user.

Then it compared with WIMAX based Fast Fourier Transform FFT and Discrete Wavelet Transform DWT for both systems.

As a result, it can be seen that the proposed system have high performance improvement over traditional WIMAX, were the BER is widely reduced under different channel characteristics.