Full Duplex Wireless: From Impossibility to Practice

Wednesday, April 05, 2017
10:30 AM to 11:30 AM
NHB 1.720
Free and open to the public

A long held assumption in wireless is that radios cannot transmit and receive at the same time on the same frequency. This assumption has informed several aspects of wireless network design: from radio design to PHY, MAC and network layers. In this talk, I will describe my research on invalidating this fundamental assumption. Specifically, I will describe the evolution of my research on self-interference cancellation over the last six years. The prototype has now been commercialized by Kumu Networks and has undergone successful field trials with Tier 1 network providers worldwide.

My work on self-interference cancellation has enabled a whole host of new applications beyond full-duplex radios. I will describe briefly, how we built a variety of systems: a full duplex relay which extends both range and capacity, a Wireless Virtual reality headset, low power connectivity solutions for IoT and fine-grained human motion tracking. I will also highlight the cross-disciplinary nature of the research spanning algorithms, software-hardware design, RF circuits, signal processing, PHY and MAC layers, and discuss both the challenges and opportunities in attacking problems that span several disciplines.

x x


Dinesh Bharadia

Dinesh Bharadia

Postdoctoral Associate
Massachusetts Institute of Technology

Dinesh Bharadia received his PhD from Stanford University, where he was advised by Prof Sachin Katti in 2016 and is currently a Postdoctoral Associate at MIT working with Prof. Dina Katabi and Prof. Mohammad Alizadeh. His research interests include advancing the theory and design of modern wireless communication systems, wireless imaging, sensor networks and data-center networks. In recognition of his work, Dinesh was named a Marconi Young Scholar for outstanding wireless research and awarded the Michael Dukakis Leadership award. He was also named as one of the top 35 Innovators under 35 in the world by MIT Technology Review in 2016. Dinesh is also recipient of the Sarah and Thomas Kailath Stanford Graduate Fellowship. From 2013 to 2015, he was a Principal Scientist for Kumu Networks, where he worked to commercialize his research on full-duplex radios, building a product that underwent successful field trials at Tier 1 network providers worldwide like Deutsche Telekom and SK Telecom. Dinesh received his bachelor’s degree in Electrical Engineering from the Indian Institute of Technology, Kanpur in 2010, where he received the gold medal for graduating at the top of his class. His research has been published at top conferences such as SIGCOMM, NSDI, MobiCom and has been cited over 2000 times.