Lajos L. Hanzo, "OFDM and MC-CDMA for Broadband Multi-User Communications, WLANs and Broadcasting"
Publisher: Wiley-IEEE Press | ISBN: 0470858796 | edition 2003 | PDF | 1011 pages | 46,9 mb
Orthogonal frequency-division multiplexing (OFDM) is a method of digital modulation in which a signal is split into several narrowband channels at different frequencies. CDMA is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimising the use of available bandwidth. Multiplexing is sending multiple signals or streams of information on a carrier at the same time in the form of a single, complex signal and then recovering the separate signals at the receiving end.