“…One of the most popular multicarrier communications techniques, orthogonal frequency division multiplexing (OFDM), has developed into a widely-used scheme for wideband digital communication. This is credited to OFDM's high spectral efficiency, robustness to channel fading, excellent implementation advantages and ability to support several access schemes such as TDMA, frequency division multiple access (FDMA), multicarrier code division multiple access (MC-CDMA) [8][9][10] as well as various modulation schemes. The major advantage of OFDM over singlecarrier schemes is its ability to cope with frequency-selective fading channel with only one-tap equalizer.…”