Q. What is " COFDM"?
COFDM = Coded Orthogonal Frequency-Division Multiplexing
COFDM is a modulation technique used in many modern communication systems, for example, WI-FI (802.11a/g/n), 4G-LTE, and so on. It is also the modulation used in ccHDTV. There are lots of advantages of COFDM, for example, it can cope with narrow-band interference and multipath fading, the equalizer design is easier, and it can support the realization of SFN (single-frequency network.)