Constructies met passer en liniaal, mogelijkheden en onmogelijkheden

Dit onderzoek gaat over de mogelijkheden en onmogelijkheden met betrekking tot constructies met passer en ongemarkeerde liniaal. Hier werken we met de euclidische meetkunde en zullen we dus ook beginnen met de vijf postulaten van Euclides en een aantal toepassingen ervan. Er zal besproken worden wat het betekent voor een punt of constructie om...

Distributed Optimisation Using Stochastic PDMM: Convergence, transmission losses and privacy

In recent years, the large increase in connected devices and the data that is collected by these devices has caused a heightened interest in distributed processing. Many practical distributed networks are of heterogeneous nature. Because of this, algorithms operating within these networks need to be simple, robust against network dynamics and...

Optimal placement of green, blue and yellow roofs under uncertainty: Maximizing the societal benefits for a municipality

Climate change challenges the resiliency of our cities, and lack of spaces in densely paved areas makes it impossible to implement adaptation and mitigation strategies on the street level. However, buildings have often unused roofs, which can be converted into sustainable roofing options. Green roofs are systems which allow for the growth of...

On Code-based Cryptosystems using binary codes with large minimum distance: Post-Quantum Cryptography

Code-Based Cryptography is a branch of the Post-Quantum Cryptography research area. As such, its focus is on developing algorithms that can be used in the current communication systems to secure them against an adversary powered in the (near) future by a quantum computer. A code-based type cryptosystem is a public key cryptosystem that is...

Modern cryptography: the RSA system

In 1977 the RSA system was designed by Ron Rivest, Adi Shamir and Len Adleman. The RSA system is a part of modern cryptography. Modern cryptography makes sure that one can secure important information - like data, communication or banking accounts - on the computer. There are several attacks on the RSA system where the private key can be cracked...

Artificial Intelligence-Based Radio Resource Management in Sliced Radio Access Networks

In this thesis, we design and assess a multi-slice resource allocation framework that is based on machine learning techniques (subset of artificial intelligence techniques). The proposed framework employs two machine learning techniques namely, artificial neural networks and reinforcement learning for resource management in sliced RAN....

Space Time Code for Massive MIMO

Ubiquitous connectivity requirements and stringent quality-of-services (QoS)<br/>in recent wireless communications demand new revolutionary wireless network<br/>technologies to support the exponentially increasing traffic growth.<br/>Massive multiple-input-multiple-output (MIMO) with the capability of high<br/>spectral efficiency achieved by...

LoRaWAN Class B Multicast: Scalability

LoRaWAN is amongst the most prominent LPWAN (Low Power Wide Area Networking) technologies and provides an operation mode, called Class B, where devices can be reached with limited latency. One of the most important features of LoRaWAN Class B is multicast, which allows a single transmission to be shared by multiple multicast group member end...

Phase estimation of recurring patterns in nonstationary signals

A phase estimation algorithm is presented to estimate the phase of a recurring pattern in a nonstationary signal. The signal is modelled by a template signal that represents one revolution of the recurring pattern, and that the frequency of this pattern can change at any time with no assumptions about local stationarity. The algorithm uses a...