Intercontinental Internet communications lie on top of a complex network of submarine cables forming its global communication backbone. As part of ongoing work focused on the criticality of the submarine cable network, fellow researchers from Northwestern University and the University of Wisconsin-Madison and I mapped traceroute measurements to submarine cables as a first step towards … Read more
November 28-29, 2023. Dr. Walter Willinger (NIKSUN) and Prof. Bustamante are co-organizing an NSF Workshop bringing together an initial group of national and international experts to sketch and start implementing a transformative research agenda for solving one of our community’s most challenging yet important tasks: the re-architecting tomorrow’s Internet for “survivability”, ensuring that the network … Read more
How many major telecommunication companies are state-owned, and in which economies do they operate? Knowing the answer to such questions can be critical for network operators to make informed decisions on routing, interconnection and general network operations, particularly when they are operating in another economy or when a peer company is owned by a foreign … Read more
International mobile roaming is a key feature of cellular networks, enabling mobile subscribers to seamlessly use cellular services worldwide. It supports international travellers, who can access data roaming at a limited cost (or no cost), often using applications with stringent Quality of Experience (QoE) requirements (for example, VoLTE, video streaming). Mobile Network Operators (MNOs) infrastructure … Read more
Nearly all international data is carried by a mesh of submarine cables connecting virtually every region in the world. Today, the submarine cable network is recognized as vitally important to the global economy and as an enabler of sustainable growth in developing regions. While the initial deployments of the submarine network date back to the … Read more
The growth of global Internet traffic has driven a drastic expansion of the submarine cable network. Today, a complex mesh of hundreds of cables, stretching over one million kilometres, connects nearly every corner of the earth and is instrumental in closing the remaining connectivity gaps. Despite the scale and critical role of the submarine network … Read more
The growing key role of cellular networks for providing Internet connectivity in many places around the world makes the case for considering such networks as part of the critical infrastructure of these economies. An invited post for the APNIC blog. Read full paper here The tremendous growth of the mobile Internet, with over 11 billion devices … Read more
Change is coming to Cuba – Our early work on characterizing Cuba’s Internet connectivity to appear at the next ACM Internet Measurement Conference (IMC) 2015! Read the full paper here It may have taken 54 years, but change is coming to Cuba. Last December, the US government announced plans to restore relations with Cuba and … Read more
Mobile devices have become an integral part of our lives, however, most of us have little idea how often and how long we are spending with these devices. Track your mobile phone habit by installing Application Time (AppT) today! Mobile devices have become an integral part of many of our lives, so much so that recent … Read more