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POLYCORN - Data-driven Cross-layer Multipath Networking for High-speed Railway

Offered By: USENIX via YouTube

Tags

USENIX Symposium on Networked Systems Design and Implementation (NSDI) Courses Performance Evaluation Courses

Course Description

Overview

Explore a groundbreaking networking system designed to enhance Internet performance for high-speed railway passengers in this 15-minute conference talk from NSDI '23. Delve into POLYCORN, a data-driven cross-layer multipath networking solution that addresses the challenges of providing stable Internet access on trains traveling at speeds exceeding 250 km/h. Learn about the extensive measurements conducted on commercial high-speed railway trains, resulting in a massive 1.79 TB GPS-labeled TCP-LTE dataset covering 28,800 km of travel. Discover how POLYCORN utilizes composable multipath schedulerlets to intelligently manage user traffic across multiple fluctuating cellular links between trains and track-side base stations. Gain insights into the system's cross-layer and proactive approach, specifically tailored for high-speed railway environments. Examine the real-world deployment results on the Beijing-Shanghai high-speed railway route, showcasing POLYCORN's significant improvements in goodput and reduced delivery times for instant messaging applications compared to state-of-the-art multipath schedulers.

Syllabus

NSDI '23 - POLYCORN: Data-driven Cross-layer Multipath Networking for High-speed Railway


Taught by

USENIX

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