A Genetic Approach to Programming Large-Scale Systems

In recent years, there is an increasing interest in the scientific community for development of algorithms targeting large-scale networks. In addition to their sheer size, these networks also exhibit various topology dynamics -- nodes join and exit at high rates (churn), are mobile and are not always reliable. Such extreme properties make...

Do we really need A Priori Link Quality Estimation?

Traditionally, link quality estimation (LQE) has been viewed as an a priori step in sensor network routing protocols because it filters out unreliable links before data transmission. Recent results, however, show that protocols can perform well without a priori LQE. Because getting rid of LQE seems rather counter-intuitive, the aim of this work...

Feasibility Study and Design for Wireless Sensor Networks in a Space Environment

Wireless sensor networks is a technology that has been used in a vast number of applications and environments with successful results in the past. Therefore increasing nowadays the number of users of this type of devices and their new applications. In this thesis we worked hand-in-hand with the ISIS B.V. Company to provide a proper WSN design to...

Reliable Transport for Wireless Sensor Networks

Wireless sensor networks (WSNs) are ad-hoc wireless networks of small form-factor embedded nodes with limited memory, processing, and energy resources. Certain applications, like security and art monitoring,require reliable data transport. Current work for WSNs only provides stochastic reliability or guaranteed reliability for bulk transfer....

A Java Compatible Virtual Machine for Wireless Sensor Networks

Writing software for Wireless Sensor Networks (WSN) is hard, as programmers have to write robust, distributed, highly concurrent applications on extremely resource limited devices. Virtual machines offer among other things support for high-level object-oriented languages, dynamic memory management and protection, hardware abstraction, and...

Passive and Active Inspection of Wireless Sensor Networks: A Practical Use Evaluation

Sensor nodes are small, autonomous, battery-powered devices that use a wireless network interface to communicate with other sensor nodes. Together these sensor nodes form a Wireless Sensor Network (WSN), which has the purpose to sense information about the environment. Before a WSN is deployed, it is tested using simulators and testbeds. Both...