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February 27, 2014

Mtg: Full Duplex Radios: From Impossibility to Practice

by @ 3:58 pm. Filed under Communications, Electronics Design

WEDNESDAY April 16, 2014
SCV Communications Chapter
– self-interference cancellation, isolation, panel …
Speakers: Prof. Sachin Katti, Electrical Engineering and Computer Science, Stanford University; Joel Brand, Vice President of Product Management, Kumu Networks
Time: Networking & Refreshments 6:30 PM; Presentations at 7:00 PM
Cost: $5 donation for food
Place: Texas Instruments Building E Auditorium, 2900 Semiconductor Dr., Santa Clara
RSVP: from the website

Self-Interference Cancellation Technology (Katti): A basic precept of wireless communications is that radios cannot transmit and receive at the same time on the same frequency.  This long-held assumption has informed several aspects of wireless: from radio design, to PHY, MAC and network layer designs for all kinds of wireless networks.  In this talk, I will describe our research on invalidating this fundamental assumption.  Specifically, I will describe the evolution of our research on self-interference cancellation over the last three years which has now shown that realizing in-band full duplex radios is possible and practical, and discuss the impact this is beginning to have on future wireless network architectures.  I will also highlight the cross-disciplinary nature of the research spanning RF, DSP, PHY and MAC, and discuss both the challenges and opportunities in attacking problems that span several disciplines.
Applications of Full Duplex Radios (Brand): Self-interference has significant impact on the design of wireless communications systems.  It necessitates the isolation of transmit and receive signals, using components such as duplexers, policies such as time division duplexing, or simply through spatial separation of antennas.  All currently known techniques negatively affect efficiency — for example in the form of spectral utilization and loss, increase system costs, and limit deployment models.  This  talk will discuss the implications of self-interference cancellation technology to a wide variety of communications applications, and explore an array of possibilities to use the technology in the confines of existing standards.


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