Indoor path loss prediction for Wi-Fi network in ultrahigh frequency band using one-dimensional multi-resolution technique

Abstract

In this work, Wi-Fi received signal strength was monitored in an indoor environment at 2437 MHz in ultrahigh frequency band of channel 6. The received signal strength was compressed, decomposed, filtered and reconstructed using one dimensional multi – resolution technique in order to predict how Wi-Fi received signal strength fades (path loss). The prediction result showed that the received signal strength was attenuated at 5.56 dB, fades 3 times and followed more of Gaussian than the Log – Normal and Rayleigh distributions with mean of 64.44 dBm and standard deviation of 0.568 dB. Cumulative frequency distribution was used to validate the wavelet prediction

Keyword: Wavelet, Signal Strength, Wireless, Prediction, Path Loss, Channel and Model