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

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.
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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

With a human necessity to be able to communicate with people in their proximity from anywhere to anyone ad hoc networks can be used to instantly connect to local or remote networks such as the Internet without the need of pre-existing infrastructure. Without the need of centralized administration or pre-existing infrastructure, users of the network together establishes the infrastructure.

Wireless communication has one great disadvantage and that is the limited range of radio transmissions. An elegant solution is to use ad hoc networking in which data can be forwarded by intermediate systems through the network in able to reach the final destination. Such a network can be used in many different applications, for instance spontaneous and temporary surveillance systems in hazardous environments.

An ad hoc network consists of arbitrary deployed communicational devices, such as cellular phones, Personal Digital Assistants (PDAs) etc.

This thesis was aiming 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 utilize less consumed power due to the fact that most wireless devices use batteries and therefore have a limited lifetime. Requirements were made that routes should be established as fast as possible to provide almost instant communication. Stability issues such as link connectivity between intermediate systems have also been an important issue during the development.

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

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.
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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

Ad Hoc Networks with Unattended Ground Sensors

Thesis for Bachelor of Science degree in Telecommunication.

Awarded the highest prize from the Sparbanksstiftelsen Kronan 2002.
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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