CRL Sweden specialists in Mesh networks, routing algorithms/ protocols, and data dissemination.

Intelligent Sensor Networks - an Agent-Oriented Approach

Submitted for the Degree of Master of Science in Electrical Engineering.

Awarded the highest prize from the Sparbanksstiftelsen Kronan 2004.
Read more

In this report the abstraction level of the agent oriented approach is investigated for distributed systems. Ideas and concepts concerning data and information fusion are presented and discussed. A testbed of an intelligent ground sensor network is implemented with the intention of investigating agent orientated and gain experience of the maturity of the agent oriented paradigm for dynamic and distributed networks in ad hoc environments. Software agents have been used in an intelligent way to get the units in the network to cooperate and only distribute relevant information.

Abstract

This thesis work was aiming to investigate the use of the agent oriented programming paradigm to develop an intelligent sensor network. An intelligent sensor network should consist of autonomous sensor nodes, which exchanges information and reason with each other and collaborate in order for the network as one unit to deliver fused and compiled sensor information to the end user of the system. The intelligent sensor network has no single points of failure, and preserves the energy resources of the network.

The field of networked Unattended Ground Sensors is a key technology for the future and has become a subject to a lot of interest. Easy deployed Unattended Ground Sensor Networks (UGSN) with ability of the sensor nodes to determine their own position and establish communication with each other and the surroundings can be used in different kinds of operations where large areas are to be covered. UGSN can be deployed for continuous monitoring at strategic locations to sense movements, presence of vehicles, weapons, people etc. for the purpose of e.g. border protection, chemical disaster, and rescue mission after earthquakes, drug/law enforcement and military surveillance.

In this thesis the paradigm of an agent-oriented abstraction level for distributed systems is investigated and concepts of data fusion are discussed. The covered theory in the report has been focused on such parts that are of concern in developing these kinds of sensor network systems. A testbed of an intelligent UGSN has been implemented as a basis of testing this thesis proposed approach, and make implemental experiences of the agent paradigms maturity for such dynamic wireless sensor networks. A key issue of such UGSN is the algorithm of determining which information to exchange between which nodes, what data to fuse and what information to present externally from the network. Software agents are used to achieve the sophisticated information collaboration and target tracking, while reducing energy consumption implied by the wireless communication.

Intelligent Sensor Networks - an Agent-Oriented Approach (Poster)

Poster submitted by CRL to the workshop realWSN arranged by SICS.

See also all Online-proceedings at SICS homepage.

Abstract

A New Routing Strategy for Mobile Ad Hoc Communication

Submitted for the Degree of Master of Science in Electrical Engineering.

Awarded the highest prize from the Sparbanksstiftelsen Kronan 2004.
Read more

The aim of this thesis was to develop a new routing strategy for mobile ad hoc communication with key features such as utilization of as little computational resources as possible thereby consumed power due to the fact that most wireless devices use batteries and therefore have a limited lifetime. Requirements were set that routes should be established as fast as possible to provide almost instant communication. Stability issues such as link connectivity between intermediate systems were also important during the development.

Abstract

Ad Hoc Networks with Unattended Ground Sensors

Thesis for Bachelor of Science degree in Telecommunication.

Awarded the highest prize from the Sparbanksstiftelsen Kronan 2002.
Read more

In this report theories concerning unattended ground sensor networks and ad hoc routing is presented. A description about the development of a testbed for this kind of network is also handled in the report.

Abstract