Sensor Selection and Bit Allocation in WSNs with Realistic Digital Communication Channels

For energy management in wireless sensor networks, only the sensors with most informative measurements are activated to operate. How to select sensors that make good tradeoff between performance and energy consumption is what many researchers are focusing on. Existing solutions assume analog data model, i.e., the data from sensors collected by a...

Mm-Wave In-Package Antennas for Short-Range Car Radar Application

Demonstration of 2 x 2 heterodyne receiver array at 1.4THz using HEB mixers and Fourier phase grating LO

This master thesis demonstrates the realization of a 2×2 heterodyne receiver array at 1.4 THz based on superconducting hot electron bolometer (HEB) mixers and a Fourier phase grating local oscillator (LO). This is the first time to build a heterodyne receiver array based on these two techniques at such a high frequency. The theoretical knowledge...

Designing efficient wireless power transfer networks

The techniques of wireless power transfer has been gaining increasing popularity in the recent years due to the widespread use of mobile electronic devices such as laptops, mobile phones, wearable electronics and wireless sensors. Traditionally, these devices are powered using a battery that needs to be recharged. Wireless power transfer has the...

Development of Processing Algorithms for the Detection and Estimation of Multi-Layered Structures of a Windfield with Polarimetric Doppler Weather Radar

The Technical University of Delft has started a project in the form of a Master Thesis to improve their existing and develop new algorithms for processing the measured data with the PARSAX radar for 2D-Windfield monitoring. A new algorithm is developed that detects and estimates the multi-layered structure of a windfield using the measured...

Neighbor discovery in energy harvesting wireless sensor networks

Homes, offices and vehicles are getting networked. This will enable context aware, autonomous operation of many support systems that could be controlled remotely. To achieve this there would be a large number of tiny devices -- sensors and actuators -- which are networked and they are termed generally as Internet of Things (IoT) devices. In...

Evaluation of Relay-Enhanced LTE-Advanced Networks

The Third Generation Partnership Program's Long-Term Evolution Advanced (3GPP LTE-Advanced) group is developing a new standard for mobile broadband access that will meet the throughput and coverage requirements of a fourth generation cellular technology. The key goals for this evolution are increased data rate, improved spectrum efficiency,...

Flexible and Adaptable Service Provisioning for Federated Personal Networks

Personal network and their federations (called Fednet) are considered as one of the promising future concepts regarding the personal communication. In this thesis, we first studies the state of the art of Fednet, from which we know there are two approaches for providing the services in Fednet, one is overlay and the other is proxy-based. Each of...