Computing, IT & AI
MIMO wireless
1992-2004 CEArogyaswami Paulraj (Stanford), with Thomas KailathPaulraj and Kailath, US patent filed 1992Diaspora (work abroad)
1992
Sending several data streams at once over multiple antennas, multiplying the capacity of a radio channel.
- Dated
- 1992–2004
- As scholars put it
- 1992-2004 CE
- Originator
- Arogyaswami Paulraj (Stanford), with Thomas Kailath
- Source text
- Paulraj and Kailath, US patent filed 1992
- Region
- Diaspora (work abroad)
- Discipline
- Computing, IT & AI
- Evidence
- Documented
- Confidence
- High
- Verification
- Verified-web
Background
Arogyaswami Paulraj, a former Indian Navy officer who had led the APSOH sonar project, proposed at Stanford in 1992 that multiple transmit and receive antennas could carry parallel spatial streams. The idea faced scepticism. His startups Iospan (1998) and Beceem (2004) combined MIMO with OFDM and built 4G WiMAX chips.
Significance
MIMO-OFDM is the foundation of 4G LTE, 5G and Wi-Fi. Paulraj received the Marconi Prize and the IEEE Alexander Graham Bell Medal, and was inducted into the US National Inventors Hall of Fame.
Path to modern innovation
Every modern phone and Wi-Fi router uses MIMO.
Global impact
- 4G LTE and 5G mobile networks.
- Wi-Fi from 802.11n onward.
Further reading
Related
Corrections and additional sources: edit IND-389 on GitHub.