Just like Ethernet before, IEEE 802.11 is now transcending the borders of its usage from the
office environment toward real-time communication on the factory floor. However, similar to …

The introduction of the precision time protocol has brought forth the possibility to have a
standardised synchronization mechanism in networks, independent from the actual …

We propose a new timekeeping architecture for virtualized systems, in the context of Xen.
Built upon a feedforward based RADclock synchronization algorithm, it ensures that the …

In this chapter the solution approach of an isochronous wireless network for realtime
communication in industrial control applications is presented. The system is based on IEEE …

Novel packet I/O engines allow capturing traffic at multi-10Gb/s using only-software and
commodity-hardware systems. This is achieved thanks to the application of techniques such …

Variable latencies due to communication delays or system noise is the central challenge
faced by time-keeping algorithms when synchronizing over the network. Using extensive …

IPsec is one of the most widespread protocols to establish secure communication for the
Internet Protocol. Besides the fact that this protocol is fully integrated in the Internet Protocol …

The Raspberry Pi platform is increasingly being used for network measurement due to its
low cost, ease of deployment, and ability to run Linux. Timestamps are a critical part of …

The RADclock is an open source software clock that is highly robust to latency variability. A
limitation up to now has been that it could only be used with NTP servers, and was unable to …

This article analyzes the viability of secure tunneling for clock synchronization protocols with
special respect to high-precision clock synchronization requiring hardware timestamping. It …