AuthorsS. Ozcan, I. Livadariu, G. Smaragdakis and C. Griwodz
TitleLongitudinal Analysis of Inter-City Network Delays
AfilliationCommunication Systems
Project(s)The Center for Resilient Networks and Applications
StatusAccepted
Publication TypeProceedings, refereed
Year of Publication2023
Conference NameNetwork Traffic Measurement and Analysis Conference (TMA)
PublisherIEEE/IFIP
Keywordsbig network data analysis, Internet measurements, longitudinal analysis, RTT delay
Abstract
During the last decades, public and private investments contributed to building the Internet infrastructure, including undersea cables, long-distance fiber links, broadband networks, and satellite constellations to reduce end-to-end delay. However, a systematic longitudinal analysis of end-to-end network delays between major city pairs is still missing. In this study, we measure the inter-city delays over the last six years, considering 17 major metropolitan areas around the globe. Our analysis shows that the delay for 88% of city pairs end-to-end delay has decreased. Moreover, we study delay changes for regional and long-haul (intercontinental) pairs. Our analysis shows that end-to-end delay has decreased for 80% and 55% of city pairs in Europe and North America, respectively. Our study also shows that despite the overall decrease in inter-city delays, global phenomena, e.g., the COVID-19 pandemic, profoundly impact many inter-city connections simultaneously while not affecting others. 
Citation Key43268