PERFORMANCE IMPROVEMENT OF IMAGE DATA COMMUNICATION OVER MIMO-WLAN USING DIFFERENT WAVELET DOMAIN MEDIAN FILTERING TECHNIQUES

In wireless communication, the receiver side bit error rate strongly affected by channels noise, synchronization error, interference, and wireless multipath fading channels, Multiple-input and multiple-output( MIMO). The image is becomes a fundamental data for communication which needs high data rate for transmission. The image transmission over wireless communication system suffers from distortion due to the adverse effect of channel. In a method based on Space-Time Block Coding (STBC) with Multiple-Input Multiple-Output set-up for use in wireless channels. A comparison is made between the diversity gain of MIMO and WLAN systems in terms of BER for High QAM modulation scheme. In this paper, performance of WLAN system is simulated and bit error rate (BER) performance is observed. In BER level is depend on the modulation type, then SNR value and channel behavior. The results has been shown in the paper for the simulation in various conditions.