Road to 5G
Arogyaswami Paulraj
Stanford University
NASSCOM ENGINEERING SUMMIT
Oct 7 2015
Pune, India
Radio Pioneers
J C Maxwell, H Hertz, O Lodge, JC Bose
G Marconi
Mobile Telephony – Pre-cellular
Bandwidth
per channel
Total Bandwidth Available
1953
Scaling to 100,000s
1
1 1
2 2
2
3 3
Cellular Reuse
Handover
DH Ring, WR Young, A Joel
1960s
1G Cellular
AMPS, NMT,… – Early 80s
1G (AMPS)
• Voice service
• Analog FM
• Frequency Division
Multiple access FDMA
• Poor spectral efficiency
• Bell Labs, Er...
2G (GSM) – Early 90s
2G (GSM) – Early 90s
• Digital
• Frequency Hopping
• Time Division Multiple
Access TDMA
• Improved spectral
efficiency
• E...
3G – (W)CDMA Early 00s
3G – WCDMA
• Spread spectrum
• Code Division Multiple
access – CDMA
• Even better spectral
efficiency
• Qualcomm, NTTDoCoM...
4G LTE, WiMAX – Early 10s
4G – Early 10s
• Packet switched
• Orthogonal Frequency Division
Multiple access –OFDMA
• MIMO
• Fractional Reuse K=1, 3
•...
Mobile Technology Today
• 7.8 B Phones, 95% penetration
• 23% broadband (4G)
• Smart Phones: > 2B, Android, IOS, ..
• Infr...
5G - Early 20s?
5G Air Interface
• Performance
– Higher speed - 5-50 Gbps
– Lower latency – 1ms
– Better coverage uniformity
– Better econ...
Services
Massive MIMO
In Conclusion
• 1984 – 2014 - 1,000,000x growth in coverage, data
speed and subscribers
• The next 30 years?
Challenge for...
of 18

Nasscom Engineering Summit 2015: Session III: Road to 5G Mobile wirless: Prof Paulraj

Nasscom Engineering Summit 2015: Session III: Road to 5G Mobile wireless By Prof Paulraj
Published on: Mar 3, 2016
Published in: Engineering      
Source: www.slideshare.net


Transcripts - Nasscom Engineering Summit 2015: Session III: Road to 5G Mobile wirless: Prof Paulraj

  • 1. Road to 5G Arogyaswami Paulraj Stanford University NASSCOM ENGINEERING SUMMIT Oct 7 2015 Pune, India
  • 2. Radio Pioneers J C Maxwell, H Hertz, O Lodge, JC Bose G Marconi
  • 3. Mobile Telephony – Pre-cellular Bandwidth per channel Total Bandwidth Available 1953
  • 4. Scaling to 100,000s 1 1 1 2 2 2 3 3 Cellular Reuse Handover DH Ring, WR Young, A Joel 1960s
  • 5. 1G Cellular AMPS, NMT,… – Early 80s
  • 6. 1G (AMPS) • Voice service • Analog FM • Frequency Division Multiple access FDMA • Poor spectral efficiency • Bell Labs, Ericsson, NTT M Cooper J Engel R Frenkiel
  • 7. 2G (GSM) – Early 90s
  • 8. 2G (GSM) – Early 90s • Digital • Frequency Hopping • Time Division Multiple Access TDMA • Improved spectral efficiency • ETSI, Ericsson, Alcatel, Matra T Haug, A Maloberti, J Ausdestad H Lamar
  • 9. 3G – (W)CDMA Early 00s
  • 10. 3G – WCDMA • Spread spectrum • Code Division Multiple access – CDMA • Even better spectral efficiency • Qualcomm, NTTDoCoMo, 3GPP I Jacobs A Viterbi F Adachi
  • 11. 4G LTE, WiMAX – Early 10s
  • 12. 4G – Early 10s • Packet switched • Orthogonal Frequency Division Multiple access –OFDMA • MIMO • Fractional Reuse K=1, 3 • Adaptive Modulation • Very good spectral efficience • Iospan, Intel (WiMAX), 3GPPLTE A Paulraj G Foschini S Alamouti 1992 1997 1998
  • 13. Mobile Technology Today • 7.8 B Phones, 95% penetration • 23% broadband (4G) • Smart Phones: > 2B, Android, IOS, .. • Infrastructure: Ericsson, Huawei, Nokia Semiconductor: Qualcomm, Mediatek, Intel • Peak speeds - touching 150 Mbps
  • 14. 5G - Early 20s?
  • 15. 5G Air Interface • Performance – Higher speed - 5-50 Gbps – Lower latency – 1ms – Better coverage uniformity – Better economics cents/Gbyte
  • 16. Services
  • 17. Massive MIMO
  • 18. In Conclusion • 1984 – 2014 - 1,000,000x growth in coverage, data speed and subscribers • The next 30 years? Challenge for India – from user to builder

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