A method and transceiver for processing a signal in a communication system are provided. The method includes identifying a Channel Impulse Response (CIR) of the signal as of minimum phase, maximum phase, or mixed phase, processing the signal without performing prefiltering when the CIR is identified as minimum phase and performing all pass prefiltering of the signal when the CIR is identified as maximum phase or mixed phase. The transceiver includes a computation block and an all pass filter. The computation block identifies CIR of a signal as minimum phase, maximum phase, or mixed phase, performs root identification when the CIR of the signal is identified to be mixed phase and enables all pass filtering of the signal when the CIR of the signal is identified as mixed phase or maximum phase. The all pass filter transforms the signal to its minimum phase equivalent.