Optimal Threshold of Welch's Periodogram for Sensing OFDM Signals at Low SNR Levels.

Nan Wang Yue Gao

Published in: EW (2013)

Keyphrases

ofdm system
low snr
wireless communication
multipath
low signal to noise ratio
noise model
spectrum sensing
signal processing
sensor networks
threshold values
adaptive threshold
weak signal
multiscale
metaheuristic
signal detection