We study the detection of the provider-free AS set (PFS), i.e., the set of those Autonomous Systems (ASes) that reach the entire Internet without paying anyone for the traffic delivery. Using trustworthy but non-verifiable sources for sanity checks, we derive the PFS from public datasets of inter-AS economic relationships. Whereas a straightforward method for extracting the PFS performs poorly because the datasets are noisy, we develop a more sophisticated Temporal Cone (TC) algorithm that relies on topological statistics and exploits the temporal diversity of the datasets. The evaluation shows that our TC algorithm detects the PFS with a high accuracy.

It is common practice for network operators, usually for traffic engineering purposes, to propagate more specific prefixes (overlapping prefixes) along with shorter prefixes that cover them. On the other hand, it can be beneficial for some Autonomous Systems (ASes) to filter such overlapping prefixes.

Wireless networks importance for the Future Internet is raising at a fast pace as mobile devices increasingly become its entry point. However, today's wireless networks are unable to rapidly adapt to evolving contexts and service needs due to their rigid architectural design. We believe that the wireless Internet's ability to keep up with innovation directly stems from its reliance on the traditional layer-based Internet abstraction. Especially, the Link Layer interface appears way too abstracted from the actual wireless access and coordination needs.FLAVIA fosters a paradigm shift towards the Future Wireless Internet: from pre-designed link services to programmable link processors.

ISPs (Internet Service Providers) typically operate as commercial ASes (Autonomous Systems) and obtain revenue by delivering IP (Internet Protocol) traffic of their customers. In particular, the provider-free ASes - which reach the entire Internet without paying anyone for the traffic delivery - sell IP transit to numerous other ASes. IP prefix deaggregation gives the deaggregator some control over Internet traffic flows but increases the memory requirements of IP routers.

Mobile app developers often include third-party Software Development Kits (SDKs) in their software to externalize services and features, or monetize...

Despite the large literature on localization, there is no solution yet to localize a commercial off-the-shelf smartphone device using radio...

Viewability is one of the most important metrics used in ad-tech to measure the performance quality of ad campaigns. The...

Dr. Nikolaous Laoutaris talks about the landscape and methods of online advertising targeting to create personalized ads based on the...

The open-source nature of the Android OS makes it possible for manufacturers to ship custom versions of the OS along...

Because of the sensitive content that they offer, modern privacy regulations try to control user tracking activities in such sites....