The effective transmission of acquired sensor data with FFT, DWT and DTCWT in different channel environment

Abstract

The paper describes the analysis of FFT, DWT and DTCDWT for effective transmission of acquired underwater sensor data in AWGN and Acoustic channel. The underwater temperature is acquired using a temperature sensor, pH value is acquired using pH sensor, and Depth of water is acquired using ultrasonic sensor. The sensor data is acquired using ARM Cortex M4 Microcontroller and the same data is processed using FFT, DWT and DTCDWT in AWGN channel and Acoustic channel for comparative analysis. Number of Samples is limited to 64 samples and SNR values ranging from 0 to 50 are considered for analysis. Graphical user interface is designed using MATLAB and the simulation results shows that number of errors after transmission in FFT is more compared to DWT and also number of errors is decreased in the case of DTCDWT.