A wired/wireless communication receiver includes an equalizer through multipath delay estimation and a signal receiving method. The receiver includes a delay spread estimation unit, a factor updating unit, and an equalizer. The delay spread estimation unit estimates a delay spread value of a received signal and uses a symbol boundary information signal to determine a filtering tap length value and a filtering step size value from an estimated delay spread value. The factor updating unit updates filtering factors using the filtering tap length value and the filtering step size value. The equalizer compensates distortion of the received signal using the filtering factors.