This page describes my research interests. The page is not intended to give a complete background to my topics, but rather an overview of my past and current research interests, as well as some of my future plans.

Digital economics

Digital economics is the economy based on digital products, including information products such as e-goods, as well as digital communication services utilizing e.g. the Internet. There are a number of characteristics of the digital economy, different from the traditional economy, such as network effects, positive feedback, zero marginal cost etc, which need to be understood when making business in digital markets. Emerging technologies such as cloud computing, 3D collaboration systems, and eCommerce all enable new ways of conducting business, formalized in a business model. In digital economics at ITEM-NTNU, we focus on digital markets and business models utilizing emerging communication networks and services for value creation.

Digital markets

The telecommunication market has moved from a monopoly to a competitive market structure, bringing along complex market structures. The focus of this research is on how to model the telecommunication market using engineering models such as stochastic modeling and simulations. Dynamic markets will be studied, and quantifiable models describing such markets are developed.

Business models

New technologies for ICT bring new opportunities for making business. In order to fully use the potential of new technologies, business model need to be studied. This research focuses on defining business models for new ICT technologies.

Communication networks

Optical networks is viewed as the most promising architecture for the future Internet. Within the area of optical networks, the focus has been on how to provide cost-efficient optical networks with sufficient QoS to satisfy today´s and future demanding real-time services.

One approach to achieve cost-efficient networks is to use network coding. Network coding has many applications in optical networks, but may also be employed for electronic switched networks as well.

Optical networking

Optical networks are emerging as a promising technology for core, metro and access networks. We study optical networks from a networking layer point of view, focusing on the Packet redundancy in optical network and Teletraffic models of optical networks.

Network coding

Network coding can be applied to optical and wireline networks, as well as wireless networks. I focus my research on how network coding can be applied to optical networks wrt. supporting dependability and multicast.

Cost modeling of communication networks and QoS mechanisms

Cost is an important parameter when evaluating the viability of different communication networks and QoS mechanisms. Cost can be quantified as actual cost or resource usage. Focus in this research is on cost modelling of optical networks, including cost level analysis of optical nodes, optical networks and QoS mechanisms for optical networks. Regarding QoS mechanisms, a special focus is put on dependability schemes.