SUNMONTUEWEDTHUFRISAT
Events for February 22, 2022
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ECE Seminar: Next-Generation Wireless Networks for Billions of IoT Devices
Tue, Feb 22, 2022 @ 10:00 AM - 11:00 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. Ali Abedi, Research Lecturer, Cheriton School of Computer Science, University of Waterloo
Talk Title: Next-Generation Wireless Networks for Billions of IoT Devices
Abstract: It is estimated that the total number of Internet of Things (IoT) devices will grow to 80 billion devices in a few years. Unfortunately, existing wireless networks cannot satisfy the diverse requirements of IoT applications in terms of power consumption, data rate, and privacy. Some IoT devices, such as contact sensors used in intrusion detection systems, transmit only a few bytes of data occasionally, while other devices such as virtual reality headsets require a continuous stream of data with a high data rate. Moreover, many IoT devices run on a battery; therefore, they have very strict power consumption requirements. The battery in many IoT devices has to be changed every few months, which is time consuming and costly. Furthermore, old batteries have adverse environmental effects, if not disposed of properly. In addition to these problems, bringing many IoT devices to our smart homes and offices creates many privacy concerns. How can users be confident that their privacy is not violated in smart environments?
In this talk, I present the design of next generation wireless networks that satisfy the diverse requirements of IoT applications. To enable low-power wireless networking for IoT applications that require low data rates, I present a system that enables a battery-free IoT device to transmit its data to nearby WiFi devices. Next, I describe the design of a low-power and low-cost millimeter wave network for IoT devices that require up to 100 Mbps of bandwidth. Finally, I discuss privacy issues caused by wireless signals transmitted by many IoT devices in a smart environment.
Biography: Ali Abedi is currently a research lecturer at the University of Waterloo. His research interests are in the areas of wireless networks and mobile systems with a special focus on the Internet of Things (IoT) and smart environments. He received his Ph.D. in computer science from the University of Waterloo. His work has been published in top systems and networking venues such as SIGCOMM, MobiCom, and HotNets. He was awarded the gold medal in the Student Research Competition (SRC) competition at Mobicom 2018. His research projects have been featured in ACM GetMobile, ACM Tech News, and Science Daily. He has received multiple grants from the Natural Sciences and Engineering Research Council of Canada (NSERC). His research has resulted in multiple patents, and has attracted interests from companies such as Google, Qualcomm, and ecobee.
Host: Dr. Konstantinos Psounis, kpsounis@usc.edu
Webcast: https://usc.zoom.us/j/96468306783?pwd=cmJGWE91d1M0VDM1aGhaaXJNdDFPZz09WebCast Link: https://usc.zoom.us/j/96468306783?pwd=cmJGWE91d1M0VDM1aGhaaXJNdDFPZz09
Audiences: Everyone Is Invited
Contact: Mayumi Thrasher
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ECE Seminar: Solving the Cloud Efficiency Crisis with Fast and Accessible Scheduling
Tue, Feb 22, 2022 @ 12:00 PM - 01:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Kostis Kaffes, Electrical Engineering Department, Stanford University
Talk Title: Solving the Cloud Efficiency Crisis with Fast and Accessible Scheduling
Abstract: Operating systems (OS) specialization is necessary as the one-size-fits-all approach of fundamental OS operations such as scheduling is incompatible with today's diverse application landscape. Such specialization can improve application performance and cloud platform efficiency by an order of magnitude or more. Towards this goal, I will first discuss Shinjuku, a specialized OS that supports an order of magnitude higher load and lower tail latency than state-of-the-art systems by enabling better scheduling. Shinjuku leverages hardware support for virtualization to preempt as often as every 5 microseconds and disproves the conventional wisdom that interrupts are incompatible with microsecond timescales. Then, I will present Syrup, a framework that enables everyday application developers to specify custom scheduling policies easily and safely deploy them across different layers of the stack over existing operating systems like Linux, bringing the benefits of specialized scheduling to everyone. For example, Syrup allowed us to implement policies that previously required specialized dataplanes in less than 20 lines of code and improve the performance of an in-memory database by 8x without needing any application modification.
Biography: Kostis Kaffes is a final-year Ph.D. candidate in Electrical Engineering at Stanford University, advised by Christos Kozyrakis. He is broadly interested in computer systems, cloud computing, and scheduling. His thesis focuses on end-host, rack-scale, and cluster-scale scheduling for microsecond-scale tail latency with the goal of improving efficiency in the cloud. Recently, he has been looking for ways to make it easier to implement and deploy custom scheduling policies across different layers of the stack. Kostis's research has been supported by a Facebook Research Award and various scholarships and fellowships from Stanford, A.G. Leventis Foundation, and Gerondelis Foundation. Prior to Stanford, he received his undergraduate degree in Electrical and Computer Engineering from the National Technical University of Athens in Greece.
Host: Dr. Murali Annavaram, annavara@usc.edu
Webcast: https://usc.zoom.us/j/96988520485?pwd=aHRIY1BBWW5PVEtCeDlWSnAwUUxsUT09Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
WebCast Link: https://usc.zoom.us/j/96988520485?pwd=aHRIY1BBWW5PVEtCeDlWSnAwUUxsUT09
Audiences: Everyone Is Invited
Contact: Mayumi Thrasher
