Experiences with MPTCP in an intercontinental OpenFlow network

The size and amount of e-science data sets is growing rapidly. Keeping up with the network demand in order to transfer these data sets over the Internet is a challenge. Single links do not have enough capacity anymore. Therefore we need to install more interfaces in the servers and use all available paths in the network. In this paper we...

Short and zero baseline analysis of GPS L1 C/A, L5Q, GIOVE E1B, and E5aQ signals

Stochastic properties of GNSS range measurements can accurately be estimated using a geometry-free short and zero baseline analysis method. This method is now applied to dual-frequency measurements from a new field campaign. Results are presented for the new GPS L5Q and GIOVE E5aQ wideband signals, in addition to the GPS L1 C/A and GIOVE E1B...

Error Control Coding Schemes for Ultra-wideband Impulse Radio Systems

Ultra-wideband (UWB) is a promising technology that offers a potential solution for the data rate, cost, power consumption and physical size requirements of the next generation wireless devices. UWB may also play an important role in the realization of future heterogeneous networking. This technology has recently gained significant interest from...

Betrouwbaarheid van positionering in multipath-omgevingen

In deze thesis gaat het voornamelijk over het multipatheffect en over de algoritmes die gebruikt worden om een betere benadering van de positie van de bron te krijgen. Het totale project van de gehele groep gaat over een positioneringsysteem genaamd ChildFinder. De thesis is in duidelijke delen verdeeld. Eerst wordt voornamelijk theorie...

Geometry-free undifferenced, single and double differenced analysis of single frequency GPS, EGNOS and GIOVE-A/B measurements

This paper demonstrates a geometry-free GNSS measurement analysis approach and presents results of single frequency GPS, EGNOS and GIOVE short and zero baseline measurements. The purpose is to separate the different contributions to the measurement noise of pseudo range code and carrier phase observations at the receiver. The influence of...

Principles and Limitations of Ultra-Wideband FM Communications Systems

This paper presents a novel UWB communications system using double FM: a low-modulation index digital FSK followed by a high-modulation index analog FM to create a constant-envelope UWB signal. FDMA techniques at the subcarrier level are exploited to accommodate multiple users. The system is intended for low (110 kbps) and medium (1001000 kbps)...

Wireless Channel Modeling and Code Division Multiple Access for Indoor Communications

Multipath and multi-transmitter interference in spread-spectrum communication and navigation systems