Aneeq Mahmood

Learn More
In distributed systems, clock synchronization performance is hampered by delays and jitter accumulated not only in the network, but also in the timestamping procedures of the devices being synchronized. This is particularly critical in software timestamp-based synchronization where both software- and hardware-related sources contribute to this behavior.(More)
One typical approach to provide industrial automation networks with real-time guarantees is to plan a communication timeframe, which relies on synchronized clocks at all communication participants. This paper investigates how to reach such a clock synchronization accuracy in a wireless LAN, where commercially available chipsets dictate the implementation(More)
To widen the control over a factory from purely wire based to the wireless domain, both secure and reliable communication infrastructure with real-time capabilities is needed. Based on wireless communication technologies, such infrastructures may be used to gain new flexibility within any step of a manufacturing process hence enabling the development of(More)
Between the wired and the wireless world a synchronization gap in terms of accuracy obviously exists due to the different possibilities of the technologies. This paper investigates means to access WLAN functionality in order to gain systemwide synchronization between access points and clients in order to establish a common notion of time in IEEE 802.11(More)
The usage of WLANs (Wireless Local Area Networks) for both office and non office (e.g. factory automation) applications is one of today’s upcoming trends. However the usage of WLAN suffers from the problem that nowadays one cannot determine the exact position of standard compliant wireless nodes. This paper presents an approach for location based services(More)