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Effective March 10, 2020, all Duke-sponsored events over 50 people have been cancelled, rescheduled, postponed or virtualized.
Please check with the event contact regarding event status. For more information, please see https://coronavirus.duke.edu/events

Cross-Layering in Future Wireless Networks: From Compact Full-duplex Radios to City-Scale Experimentation

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Monday, March 02, 2020
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12:00 pm - 1:00 pm
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Cross-Layering in Future Wireless Networks: From Compact Full-duplex Radios to City-Scale Experimentation

Future wireless networks will feature the technology "sweet spot" of high bandwidth, low latency, and powerful edge computing, thereby enabling a broad new class of applications such as augmented reality, autonomous vehicles, and smart cities. Realizing this vision requires theoretical and experimental research efforts focusing on emerging communication technologies (e.g., full-duplex wireless, beamforming, millimeter-wave, and fiber-optics) and their interactions with the higher layers in the network stack.

Full-duplex wireless - simultaneous transmission and reception at the same frequency - is one of the emerging technologies that has the potential to increase spectrum efficiency and reduce communication latency. In this talk, I will first describe our design and optimization of compact single-antenna full-duplex radios which are suitable for hand-held devices. Our customized full-duplex radios achieve wideband self-interference cancellation using the technique of frequency-domain equalization (FDE), and are experimentally evaluated at the node-, link-, and network-level. I will then present a novel approach to enable full-duplex operation in multi-antenna systems by repurposing beamforming degrees of freedom to achieve both wideband self-interference cancellation and improved data rate gain. I will also review our results on throughput-optimal distributed scheduling in heterogeneous networks with both half- and full-duplex users.

Contact: Ellen Currin