Gregory “Greg” Raleigh (born 1961 in Orange, California), is an American radio scientist, inventor, and entrepreneur who has made contributions in the fields of wireless communication, information theory, mobile operating systems, medical devices, and network virtualization.

Raleigh subsequently co-founded five companies: Clarity Wireless, Airgo Networks, Headwater Research, ItsOn, and Chilko Capital.

[2] He employed the model to develop smart antenna signal processing techniques for rapid fading, multipath propagation, and frequency-division duplex environments.

[3][4][5][6][7][8] As a result of this research, Raleigh found that multipath propagation could be exploited to greatly increase the capacity of wireless communications, enabling data rates competitive with wire-based networks.

[9] In a paper prepared for the 1996 GLOBECOM conference in London, Raleigh presented the first rigorous mathematical proof that in the presence of naturally occurring multipath propagation multiple antennas may be used with special signal processing techniques to transmit multiple data streams at the same time on the same frequency, multiplying the information-carrying capacity (data rate) of wireless links.

Airgo Networks proposed MIMO as the best technology for meeting the performance goals of next-generation wireless LANs and contributed to the development of the IEEE 802.11n standard.