- Fri, Jan 15, 2021, 4:30 pm to 5:30 pm
- Mon, Nov 23, 2020, 4:30 pm to 5:30 pm
Abstract: Data rates in high-speed wireline communication links continue to increase, fueled by demands in data center and high-performance computing applications. In recent years, serial link data rates have increased from 28Gb/s to 56Gb/s, with 112Gb/s rapidly approaching. To achieve these higher data rates across high-loss electrical channels, standards are switching from NRZ to PAM4 signaling.
- Mon, Nov 9, 2020, 4:30 pm to 5:30 pm
Abstract: Network densification is poised to enable the massive throughout jump expected in the era of 5G and beyond. In the first part of the talk, we identify the challenges of verifying identify of a particular emitter in a large pool of similar devices based on unique distortions in the signal, or ‘RF fingerprints’, as it passes through a given transmitter chain. We show how deep convolutional neural networks can uniquely identify a radio in a large signal dataset composed of over a hundred WiFi radios with accuracy close to 99%.
- Tue, Nov 3, 2020, 4:30 pm to 5:30 pm
Abstract: Emerging Internet-of-Things (IoT) devices for use in smart homes, wearable systems, industrial monitoring, smart cities, and beyond all require robust yet low-power wireless communications. Unfortunately, most current wireless standards do not intrinsically support low-power operation due to strict requirements on modulation formats, data rates, linearity, packet overheads, and so on.
- Wed, Dec 2, 2020, 4:30 pm to 5:30 pm
- Thu, Nov 12, 2020, 12:30 pm to 1:30 pm
- Wed, Apr 1, 2020, 4:30 pm to 5:30 pm
- Wed, Mar 25, 2020, 4:30 pm to 5:30 pm
Computing systems are required to achieve continued performance growth with a focus on security and privacy while increasing energy efficiency. To achieve this goal, we need to revisit old abstractions that exist between applications, system software, and hardware. These old abstractions have enabled independent development and optimizations within each layer. However, to achieve performance and energy efficiency required by future applications, computing systems need to unlock new opportunities for optimizations.
- Wed, Apr 8, 2020, 4:30 pm to 5:30 pm
- Wed, Mar 4, 2020, 4:30 pm to 5:30 pm
Optoelectronic devices operating in the infrared region are of utmost importance, crosscutting different fields with applications in energy harvesting, gas sensing, night vision, and medical diagnosis. Present-day infrared technologies rely on high-quality epitaxially grown semiconductors, such as III-V materials. This materials platform is incompatible with CMOS technology that underpins modern consumer electronics. Alternatives to conventional materials are expected to bring new functionalities to the consumer market.