Beyond Full Duplex Wireless This presentation is the introduction of paper that was presented as Asilomar Conference, California, USA, November 4-7, 2012 By Wonhong Jeon, CSI Lab, DGIST.

Agenda Challenge Wireless Full Duplexing Their Design Applications WaveApps Challenge Wireless Full Duplexing Their Design Applications CONCLUSIONS

Challenge Multiple Input Multiple Output (MIMO) Arbitrary: 제멋대로 In Wi-Fi technology, MIMO is used since 802.11n, LTE and Wi-MAX as well. How can we use full duplex technic in MIMO?

Wireless Full Duplexing Full-Duplex Design C(3*10^8)/F(3G= 3*10^9) = 10cm remove Antenna cancellation / RF Interference cancellation / Digital cancellation

They use antenna cancellation Their Design They use antenna cancellation

Full-Duplex Design with MIMO Their Design Full-Duplex Design with MIMO We can get a real-time in-band feedback and control channel in the reverse direction with a high speed forward direction data channel.

Application A. Opportunistic Spectrum Use (White Spaces)

Application B. Packet Error Notification

Application C. In-Band Channel Status

Application D. Duplexers and Spectrum Use (Picasso)

CONCLUSION MIMO Full duplex design Application (In-Band Channel Status)

Q & A