Norvald Stol

Professor

Department of Information Security and Communication Technology Faculty of Information Technology and Electrical Engineering

norvald.stol@ntnu.no +47 73592133

Elektro B, B216, Gløshaugen

norvald.stol@ntnu.no

Research area

My research is in the area of networking, with special emphasis on optical networks. Some important focus areas:

(Optical) Network architectures
Switching
Routing
Signalling and control
Performance and dependability modelling
Quality of Service
Integrated hybrid optical switching architectures
Passive Optical (access) Networks (PONs)

Background

Professor Department of information security and communication technology, 2017 -
Head of Department, Telematics, NTNU, 2005 - 2009.
Associate professor Department of telematics, NTNU, 1998 - 2017.
Dr.ing. degree Department of telematics, NTNU in 1997.
Research scientist, SINTEF, 1984 - 1998.
Siv.ing. (MSc) degree Department of telematics, NTNU, 1983.

Research area: Networks

Courses

Scientific, academic and artistic work

A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database

Journal publications

Chatterjee, Bijoy Chand; Stol, Norvald; Oki, Eiji. (2021) Impairment-aware spectrum allocation in elastic optical networks: A dispersion-sensitive approach. Optical fiber technology (Print). vol. 61.
Chatterjee, Bijoy Chand; Sarma, Nityananda; Mitra, Abhijit; Srivastava, Anand; Stol, Norvald; Oki, Eiji. (2018) Performance of Dispersion-Reduced Wavelength Assignment in Wavelength-Routed Optical Networks. International Conference on Transparent Optical Networks. vol. 2018-July.
Fernandez Fernandez, Alvaro; Stol, Norvald. (2017) Economic, Dissatisfaction and Reputation Risks of Hardware and Software Failures in PONs. IEEE/ACM Transactions on Networking. vol. 25 (2).
Yang, Shuna; Stol, Norvald; Chi, Hao; Li, Qiliang. (2016) Optimized design of delay-line buffers with an input-feedback mechanism for asynchronous optical packet switching networks. Applied Optics. vol. 55 (31).
Fernandez Fernandez, Alvaro; Stol, Norvald. (2015) CAPEX and OPEX simulation study of cost-efficient protection mechanisms in passive optical networks. Optical Switching and Networkning Journal. vol. 17.
Fernandez Fernandez, Alvaro; Stol, Norvald. (2014) Failure Impact, Availability and Cost Analysis of PONs Based on a Network Geometric Model. Guangzi xuebao. vol. 43 (S1).
Savi, Michele; Øverby, Harald; Stol, Norvald; Raffaelli, Carla. (2014) Cost evolution model to design optical switching fabrics with wavelength converters. Computer Networks.
Yang, Shuna; Stol, Norvald. (2014) Blocking probabilities in Mulit-service systems with preemptive scheduling. International Conference on Communication Theory, Reliability, and Quality of Service.
Yang, Shuna; Stol, Norvald. (2014) Performance modeling in multi-service communications systems with preemptive scheduling. Journal of Communications. vol. 9 (6).
Savi, Michele; Øverby, Harald; Stol, Norvald; Raffaelli, Carla. (2012) Contention Resolution Using Parametric Wavelength Converters: Performance and Cost Analysis. GLOBECOM - conference record / IEEE Global Telecommunications Conference.
Yang, Shuna; Stol, Norvald. (2012) Packet Loss Bounds for Asynchronous Bufferless Optical Packet Switches with Limited Range Wavelength Converters. GLOBECOM - conference record / IEEE Global Telecommunications Conference.
Stol, Norvald; Savi, Michele; Raffaelli, Carla. (2011) 3-Level Integrated Hybrid Optical Network (3LIHON) to Meet Future QoS Requirements. GLOBECOM - conference record / IEEE Global Telecommunications Conference.
Kimsas, Andreas; Bjørnstad, Steinar; Øverby, Harald; Stol, Norvald. (2010) Improving performance in the OpMiGua hybrid network employing the network layer packet redundancy scheme. IET Communications. vol. 4 (3).
Li, Frank Y.; Stol, Norvald; Helvik, Bjarne E.. (2006) Conformance Deterioration in QoS Networks: Phenomenon, Analysis and Elimination. Computer Networks. vol. 50 (12).
Bjørnstad, Steinar; Hjelme, Dag Roar; Stol, Norvald. (2006) A Packet-Switched Hybrid Optical Network with Service Guarantees. IEEE Journal on Selected Areas in Communications. vol. 24 (8).
Li, Frank; Stol, Norvald; Helvik, Bjarne Emil. (2006) Conformance deterioration in QoS networks: Phenomenon, analysis and elimination. Computer Networks. vol. 50 (12).
Øverby, Harald; Stol, Norvald. (2006) QoS Differentiation in Asynchronous Bufferless Optical Packet Switched Networks. Wireless networks. vol. 12 (3).
Øverby, Harald; Stol, Norvald; Nord, Martin. (2006) Evaluation of QoS Differentiation Mechanisms in Asynchronous Bufferless Optical Packet Switched Networks. IEEE Communications Magazine. vol. 44 (8).
Bjørnstad, Steinar; Nord, Martin; Olsen, Torodd; Hjelme, Dag Roar; Stol, Norvald. (2005) Burst, packet and hybrid switching in the optical core network. Telektronikk. vol. 101 (2).
Zouganeli, Evi; Solheim, Astrid; Kjølnesberg, Heidi; Andreassen, Ragnar; Feng, Boning; Stol, Norvald; Sudbø, Aasmund; Helvik, Bjarne Emil. (2005) Techno-Economic Evaluation of Optical Packet/Burst Switching. IEE Conferance publication.

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