dvances in Digital Fourier Transform (DFT) in the 1980s. Further along in history, it was not until the 1990s that we witnessed the first wireless OFDM based standard - the Digital Audio Broadcasting (DAB). Next we highlight some historical perspectives [1] in the development of OFDM: 1958: Kineplex, a military multi-carrier high frequency communication system (R.R. Mosier and R.G. Clabaugh). 1966: R. W. Chang at Bell Labs published the OFDM paper "Synthesis of band-limited orthogonal signals for multi-channel data transmission." 1970: First patent (US3488445 "Orthogonal Frequency Multiplex Data Transmission System") issued to R. W. Chang on OFDM. 1971: Weinstein and Ebert proposed the use of FFT (Fast Fourier Transform) and guard interval. 1985: Cimini described use of OFDM for mobile communications. 1985: Telebit Trailblazer Modem introduced incorporating a 512 carrier Packet Ensemble Protocol. 1987: Alard & Lasalle: C-OFDM (Coded OFDM) for digital broadcasting. 1988: Thomson-CSF LER, first experimental Digital TV link in OFDM in Paris. 1989: First OFDM international patent application PCT/FR 1989/00546 "Emitter, Transmission Method and Receiver" was filed in the name of THOMSON-CSF, et al. 1990: Thomson-CSF LER, first OFDM equipment field test, 34 Mbps in an 8 MHz channel in Paris area. 1993: Morris: Experimental 150 OFDM wireless LAN (local area network). 1994: US patent 5282222, "Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum." We have mainly considered EPS and WiMAX as part of NGMN. Next Generation Mobile Communications Ecosystem: Technology Management for Mobile Communications Saad Z. Asif © 2011 John Wiley & Sons, Ltd. ISBN: 978-0-470-74746-9 Next Generation Mobile Communications Ecosystem 1995: ETSI DAB (Digital Audio Broadcasting), first OFDM based standard. 1997: ETSI DVB-T (Digital Video Broadcasting- Terrestrial) standard. 1999: IEEE 802.11 and HIPERLAN/2 wireless LAN standards. 2000: Proprietary fixed wireless access (Vector-OFDM, 