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ALL-OPTICAL OVERLAY NETWORKS

General Description

New photonics components open up possibilitites to continue the development of Internet towards a network that can offer high transmission quality, secure communication and differentiated payment models. The project aims at showing that this can be achieved through an optical overlay network.

The contributions will include development and customization of photonic components, development of control plane, optimization of the partitioning between IP/Ethernet and the overlay network and models for channel granularity in relation to different service mixes.

The project is a cooperation between KTH (School of Information and Communication Technology), Linköpings Universitet (Dept of Electrical Engineering), Stockholm School of Economics, Santa Anna IT Research Institute AB and Net Insight AB. The project is financed by Vinnova and Net Insight AB.

Project Presentations

Project Workshops

2nd Workshop on "All-optical overlay networks", Electrum, Kista October 19th 2009

Program - Speaker Presentations 2009

1st Workshop on "All-optical overlay networks", Electrum, Kista September 4th 2008

Program - Speaker Presentations 2008

Publications

Journal papers

  • C. Raffaelli, K. Vlachos, N. Andriolli, D. Apostolopoulos, J. Buron, R. van Caenegem, G. Danilewicz, J. M. Finochietto, J. Garcia-Haro, D. Klonidis, M. O'Mahony, G. Maier, A. Pattavina, P. Pavon-Marino, S. Ruepp, M. Savi, M. Scaffardi, I. Tomkos, A. Tzanakaki, L. Wosinska, O. Zouraraki, and and F. Neri, “Photonics in Switching: Architectures, Systems and enabling Technologies”, Elsevier Computer Networks, Volume 52, Issue 10, Pages 1861-2094 (16 July 2008)
  • L. Wosinska, M. Tacca, A. Fumagalli, and A. Autenrieth, “Reliability Issues in Optical Networks: introduction to the feature issue”, OSA Journal of Optical Networking, Vol. 7, Issue 10, pp. 834-836 (October 2008)
  • L. Wosinska, D. Simeonidou, A. Tzanakaki, C. Raffaelli, and Ch. Politi, “Optical Networks for the Future Internet: Introduction”, IEEE/OSA Journal on Optical Communications and Networking, Vol. 1, Issue. 2, pp. FI1-FI3, July 2009
  • N. Skorin-Kapov, J. Chen, L. Wosinska, "A New Approach to Optical Networks Security: Attack-Aware Routing and Wavelength Assignment", IEEE/ACM Transaction on Networking, Vol. 18, Issue 3, pp. 750 – 760, June 2010
  • A. Jirattigalachote, P. Monti, L. Wosinska, K. Katrinis, A. Tzanakaki, “ICBR-Diff: an Impairment Constraint Based Routing Strategy with Quality of Signal Differentiation,” Journal of Networks, Special Issue on All-Optically Routed Networks, 2010, to appear.
  • L. Wosinska, D. Simeonidou, A. Tzanakaki, C. Raffaelli, and Ch. Politi, “Optical Networks for the Future Internet: Introduction”, IEEE/OSA Journal on Optical Communications and Networking, Vol. 1, Issue. 2, July 1, 2009 pp: A1–A283N. Skorin-Kapov, J. Chen, L. Wosinska, "A New Approach to Optical Networks Security: Attack-Aware Routing and Wavelength Assignment", to appear in IEEE/ACM Transaction on Networking
  • L. Wosinska, M. Tacca, A. Fumagalli, and A. Autenrieth, Reliability Issues in Optical Networks: introduction to the feature issue, OSA Journal of Optical Networking, Vol. 7, Issue 10, pp. 834-836 (October 2008)
  • C. Raffaelli, K. Vlachos, N. Andriolli, D. Apostolopoulos, J. Buron, R. van Caenegem, G. Danilewicz, J. M. Finochietto, J. Garcia-Haro, D. Klonidis, M. O´Mahony, G. Maier, A. Pattavina, P. Pavon-Marino, S. Ruepp, M. Savi, M. Scaffardi, I. Tomkos, A. Tzanakaki, L. Wosinska, O. Zouraraki, and and F. Neri, Photonics in Switching: Architectures, Systems and enabling Technologies, Elsevier Computer Networks, Volume 52, Issue 10, Pages 1861-2094 (16 July 2008

Book Chapters

  • L. Wosinska (chapter editor), D. Colle, P. Demeester, K. Katrinis, M. Lackovic, O. Lapcevic, I. Lievens, G. Markidis, B. Mikac, M. Pickavet, B. Puype, N. Skorin-Kapov, D. Staessens and Anna Tzanakaki: Network resilience in future optical networks, chapter in the book COST 291 – Towards digital optical networks (I. Tomkos et al., eds), LNCS 5412, April 2009
  • W. Kabacinski (chapter editor), J. Chen, G. Danilewicz, J. Kleban, M. Spyropoulou, I. Tomkos, E. Varvarigos, K. Vlachos, S. Weclewski, L. Wosinska and K. Yiannopoulos: Novel Switch Architectures, chapter in the book COST 291 – Towards digital optical networks (I. Tomkos et al., eds), LNCS 5412, April 2009
  • J. Chen and L. Wosinska: Efficient Next-Generation Optical Networks - Design and Analysis of Fiber Access and Core Networks, VDM Verlag, Dr Muller Aktiengesellschaft & Co. KG, ISBN: 978-3-639-22413-9, 2010
  • W. Kabacinski (chapter editor), J. Chen, G. Danilewicz, J. Kleban, M. Spyropoulou, I. Tomkos, E. Varvarigos, K. Vlachos, S. Weclewski, L. Wosinska and K. Yiannopoulos: Novel Switch Architectures, chapter in the book – Towards digital optical networks (I. Tomkos et al., eds), LNCS 5412, April 2009
  • L. Wosinska (chapter editor), D. Colle, P. Demeester, K. Katrinis, M. Lackovic, O. Lapcevic, I. Lievens, G. Markidis, B. Mikac, M. Pickavet, B. Puype, N. Skorin-Kapov, D. Staessens and Anna Tzanakaki: Network resilience in future optical networks, chapter in the book – Towards digital optical networks (I. Tomkos et al., eds), LNCS 5412, April 2009

PhD thesis

  • Jiajia Chen, ´Design, Analysis and Simulation of Optical Access and Wide-area Networks´, PhD thesis, KTH, May 2009

Conference papers

  • G. K. Mazandu, A. B. Bagula and L. Wosinska, “Impairment Aware Multi-Path Routing in GMPLS-Based Networks”, in Proc. of OSA/IEEE Optical Fiber Communication/National Fiber Optic Engineers Conference OFC/NFOEC’08, San Diego, CA, February 2008.
  • Jiajia Chen, Lena Wosinska, Marco Tacca, Andrea Fumagalli, “Dynamic Routing Based on Information Summary-LSA in WDM Networks with Wavelength Conversion”, (Invited paper), in Proc. of IEEE International Conference on Transparent Optical Networks/Reliability Issues in Next Generation Optical Networks, ICTON/RONEXT’08, Athens , Greece, July 2008.
  • N. Skorin-Kapov, J. Chen and Lena Wosinska, “A Tabu Search Algorithm for Attack-Aware Lightpath Routing”, in Proc. of IEEE International Conference on Transparent Optical Networks/ Reliability Issues in Next Generation Optical Networks, ICTON/RONEXT’08, Athens , Greece, July 2008
  • J. Chen, A. Jirattigalachote, L. Wosinska and L Thylén, “Novel Node Architectures for Wavelength-Routed WDM Networks with Wavelength Conversion Capability”, in Proc. of European Conference on Optical Communication ECOC’08, Brussels, Belgium, September 2008
  • J. Ahmed, P. Monti and L. Wosinska, “LSP Request Bundling in a PCE-Based WDM Network”, in Proc. of OSA/IEEE Optical Fiber Communication/National Fiber Optic Engineers Conference OFC/NFOEC’09, San Diego, CA, March 2009.
  • A. Jirattigalachote, K. Katrinis, A. Tzanakaki, L. Wosinska, P. Monti, “Quantifying the Benefit of BER-based Differentiated Path Provisioning in WDM Optical Networks”, in Proc. of IEEE International Conference on transparent Optical Networks ICTON2009, Portugal, June 2009
  • L. Valcarenghi, P. Monti, I. Cerutti, P. Castoldi, and L. Wosinska, “Issues and Solutions in Mobile WiMAX and Wired Backhaul Network Integration”, (Invited paper), in Proc. of IEEE International Conference on transparent Optical Networks ICTON2009, Portugal, June 2009
  • Tzanakaki, K. Georgakilas, K. Katrinis, L. Wosinska, A. Jirattigalachote, and P. Monti, “Network Performance Improvement in Survivable WDM Networks considering Physical Layer Constraints”, (Invited paper), in Proc. of IEEE International Conference on transparent Optical Networks ICTON2009, Portugal, June 2009
  • J. Ahmed, P. Monti and L. Wosinska, “Benefits of connection request bundling in a PCE-based WDM network”, (Invited paper), in Proc. of NOC 2009, Spain, June 2009
  • R. Forchheimer, L. Wosinska, P. Monti, “An Optical Overlay Network Concept for Hard QoS Requirements”, (Invited paper), in Proc. of IEEE International Conference on transparent Optical Networks ICTON2009, Portugal, June 2009
  • A. Jirattigalachote, L. Wosinska, P. Monti, K. Katrinis, and A. Tzanakaki, “Impairment Constraint Based Routing (ICBR) with Service Differentiation in Survivable WDM Networks”, in Proc. of European Conference on Optical Communication ECOC2009, Vienna, September 2009
  • M. O’Mahony, C. Politi, L. Wosinska, A. Tzanakaki, J. Mitchell, P. Van Daele, “Key Technologies for Optical Networks”, ICO Photonics, Delphi, Greece, October 2009
  • A. Jirattigalachote, L. Wosinska, P. Monti, K. Katrinis, A. Tzanakaki, “Impairment Aware Routing with Service Differentiation in Heterogeneous WDM Networks”, in Proc. of IEEE/OSA/SPIE Asia Communications and Photonics Conference ACP2009, Shanghai, November 2009
  • L. Wosinska, A. Jirattigalachote, P. Monti, K. Katrinis, A. Tzanakaki, “Lightpath Routing Considering Differentiated Physical Layer Constraints in Transparent WDM Network”, (Invited paper), in Proc. of IEEE/OSA/SPIE Asia Communications and Photonics Conference ACP2009, Shanghai, November 2009
  • J. Ahmed, P. Monti and L. Wosinska, “Concurrent Processing of Multiple LSP Request Bundles on a PCE in a WDM Network”, in Proc. of OSA/IEEE Optical Fiber Communication/National Fiber Optic Engineers Conference OFC/NFOEC’10, San Diego, CA, March 2010.
  • L. Velasco, A. Jirattigalachote, P. Monti, L. Wosinska, S. Spadaro, G. Junyent, ” Probabilistic-based Approach for Fast Impairments-aware RWA in All-Optical Networks”, in Proc. of OSA/IEEE Optical Fiber Communication/National Fiber Optic Engineers Conference OFC/NFOEC’10, San Diego, CA, March 2010
  • P. Monti, P. Wiatr, A. Jirattigalachote and L. Wosinska, “Trading power savings for blocking probability in dynamically provisioned WDM networks”, (Invited paper), in Proc. of IEEE International Conference on transparent Optical Networks ICTON2010, Germany, June 2010
  • L. Wosinska, A. Jirattigalachote, P. Monti, A. Tzanakaki and K. Katrinis, “Energy efficient approach for survivable WDM optical networks”, (Invited paper), in Proc. of IEEE International Conference on transparent Optical Networks ICTON2010, Germany, June 2010
  • L. Wosinska, J. Chen and P. Monti, “What Photonics can do for Switching in Transparent Optical Networks”, (Keynote) IEEE NOC 2010, Portugal, June 2010
  • E. Palkopoulou, C. Meusburger, D. Schupke, L. Wosinska, T. Bauschert, “Combining Multi-Period and Multi-Layer Network Planning: Ignored Potential?” in Proc. of European Conference on Optical Communication ECOC2010, Torino, September 2010
  • A. Muhammad, P. Monti, I. Cerutti, L. Wosinska, P. Castoldi, A. Tzanakaki, “Energy-Efficient WDM Network Planning with Protection Resources in Sleep Mode”, in Proc. of IEEE GLOBECOM2010, Miami, December 2010
  • C. Cavdar, F. Buzluca and L. Wosinska, “Energy-Ef cient Design of Survivable WDM Networks with Shared Backup”, in Proc. of IEEE GLOBECOM2010, Miami, December 2010
  • L. Wosinska, A. Jirattigalachote, P. Monti, K. Katrinis, A. Tzanakaki, “Lightpath Routing Considering Differentiated Physical Layer Constraints in Transparent WDM Network”, (Invited paper), in Proc. of IEEE/OSA/SPIE ACP2009, Shanghai, November 2009
  • A. Jirattigalachote, L. Wosinska, P. Monti, K. Katrinis, A. Tzanakaki, “Impairment Aware Routing with Service Differentiation in Heterogeneous WDM Networks”, in Proc. of IEEE/OSA/SPIE Asia Communications and Photonics Conference ACP2009, Shanghai, November 2009
  • M. O’Mahony, C. Politi, L. Wosinska, A. Tzanakaki, J. Mitchell, P. Van Daele, “Key Technologies for Optical Networks”, ICO Photonics, Delphi, Greece, October 2009
  • A. Jirattigalachote, L. Wosinska, P. Monti, K. Katrinis, and A. Tzanakaki, “Impairment Constraint Based Routing (ICBR) with Service Differentiation in Survivable WDM Networks”, in Proc. of European Conference on Optical Communication ECOC2009, Vienna, September 2009
  • R. Forchheimer, L. Wosinska, P. Monti, “An Optical Overlay Network Concept for Hard QoS Requirements”, (Invited paper), in Proc. of ICTON2009, Portugal, June 2009
  • J. Ahmed, P. Monti and L. Wosinska, “Benefits of connection request bundling in a PCE-based WDM network”, (Invited paper), in Proc. of NOC 2009, Spain, June 2009
  • A. Tzanakaki, K. Georgakilas, K. Katrinis, L. Wosinska, A. Jirattigalachote, and P. Monti, “Network Performance Improvement in Survivable WDM Networks considering Physical Layer Constraints”, (Invited paper), in Proc. of ICTON2009, Portugal, June 2009
  • A. Jirattigalachote, K. Katrinis, A. Tzanakaki, L. Wosinska, P. Monti, “Quantifying the Benefit of BER-based Differentiated Path Provisioning in WDM Optical Networks”, in Proc. of ICTON2009, Portugal, June 2009
  • J. Ahmed, P. Monti and L. Wosinska, “LSP Request Bundling in a PCE-Based WDM Network”, in Proc. of OSA/IEEE Optical Fiber Communication/National Fiber Optic Engineers Conference OFC/NFOEC’09, San Diego, CA, March 2009
  • J. Chen, A. Jirattigalachote, L. Wosinska and L Thylén, Novel Node Architectures for Wavelength-Routed WDM Networks with Wavelength Conversion Capability, in Proc. of European Conference on Optical Communication ECOC08, Brussels, Belgium, September 2008
  • N. Skorin-Kapov, J. Chen and Lena Wosinska, A Tabu Search Algorithm for Attack-Aware Lightpath Routing, in Proc. of IEEE International Conference on Transparent Optical Networks/ Reliability Issues in Next Generation Optical Networks, ICTON/RONEXT08, Athens , Greece, July 2008
  • Jiajia Chen, Lena Wosinska, Marco Tacca, Andrea Fumagalli, Dynamic Routing Based on Information Summary-LSA in WDM Networks with Wavelength Conversion , (Invited paper), in Proc. of IEEE International Conference on Transparent Optical Networks/Reliability Issues in Next Generation Optical Networks, ICTON/RONEXT08, Athens , Greece, July 2008
  • G. K. Mazandu, A. B. Bagula and L. Wosinska, Impairment Aware Multi-Path Routing in GMPLS-Based Networks, in Proc. of OSA/IEEE Optical Fiber Communication/National Fiber Optic Engineers Conference OFC/NFOEC08, San Diego, CA, February 2008

LOW-DELAY VIDEO-OVER-INTERNET

Optimal coding rate for limited buffer size

  • We are considering a communication system with (small) send and recieve buffers.
  • The channel has a time varying rate.
  • The source is coded by a lossy coder with a distortion that depends on the source coding rate.

Problem

Find the source coding rate function Rs(t) that minimizes the average distortion subject to not overflowing nor underflowing the buffers.

Journal papers

  • Ajmal Muhammad, Peter Johansson, Robert Forchheimer;, "Performance Evaluation of Rate-Control Strategies for real-time Systems Over a Rate-Varying Channel," Journal of Communications, Vol 5, No. 5 (2010), 390-399, May 2010

Conference papers

MODEL BASED CODING

Significant reduction of the image data can be achieved if assumptions are made regarding the 3D scene that has given rise to the image signal. In our project - Model Based Coding - we consider "head-and-shoulder" type images for which we make detailed models. The following issues are addressed:

* 3D solid modelling
* Modelling of face expressions
* Facial feature identification
* Shape estimation from projects
* 3D movement estimation
* Facial action estimation
* Real time synthesis

For the modelling of face expressions we are using a conventional technique termed FACS (Facial Action Coding System) developed within the medical field. Our own work has been centered on facial features identification and various types of movement estimation.

Movement estimation is done based on the estimated displacement field between consecutive image frames ("optical flow"). We have developed CANDIDE, a popular face wire-frame model which also includes Action Units.

Movement estimation is done based on the estimated displacement field between consecutive image frames ("optical flow"). An algorithm has been developed which tracks both global motion and facial action.

Model based coding as described above will need a considerable amount of development before it becomes a practical technique. However, the progress made in the last years by ourselves and by others have eliminated all doubts about the possibility of creating a functioning system.

VIDEO WATERMARKING

Media such as movies and images are nowadays produced and distributed digitally. It is usually simple to make copies of digital content. Consequently illegal pirate copies can be duplicated and distributed in large quantities. One way to deter authorized content receivers from illegally redistributing the media is watermarking. If individual watermarks are contained in the digital media and a receiver is a pirate and redistributes it, the pirate at the same time distributes his identity. Thus a located pirate copy can be traced back to the pirate. The watermarked media should otherwise be indistinguishable from the original media content.

To distribute media content scalable transmission methods such as broadcast and multicast should be used. This way the distributor will only need to transmit the media once to reach all his authorized receivers. But since the same content is distributed to all receivers the requirement of individual watermarks seems to be contradictory.

It has been shown how individually watermarked media content can be transmitted in a scalable way. A new transmission method has been developed. The new method is independent of what type of distribution that is used. A system with robust watermarks that are difficult to remove has been described. Only small parts of the media content will be needed to identify the pirates. The method will only give a small data expansion compared to distribution of non-watermarked media.

It has also been shown how information theory tools can be used to expand the amount of data in the watermarks given a specific size of the media used for the watermarking. These tools can also be used to identify parts of the watermark that have been changed by deliberate deterioration of the watermarked media, made by pirates.

PERCEPTION BASED CODING

There exist several algorithms for estimating motion, giving local velocity estimates. Sometimes, however, the velocity is hard to estimate, and the algorithms tend to produce erroneous output. Therefore we are looking at local certainty estimates, which can be used to control further processing.

Prefiltering is done to remove camera noise and to reduce temporal bandwidth before making temporal subsampling. The filtering has to be motion compensated to be well adapted to the Human Visual System. To reduce artifacts, we let the filters adapt locally to the certainty of the motion estimate. Results from using ordinary motion compensated prefiltering and certainty controlled motion compensated prefiltering have been developed.

FRACTAL CODING

A few years ago, the first attempts were made to produce good approximations of natural images by fractal techniques. Since fractals often can be described by very few parameters in a simple dynamical system, the procedure of image approximation can be exploited for compression of image data.

In our terminology, a fractal is a fixed point, an attractor, to a contractive transformation. This transformation acts on images of a given size and produces new images of the same size. Such transformations can be designed for e.g. binary images, grayscale images or colour images. Image coding using fractals is then reduced to finding the contractive transformation having its fixed point as close as possible to the image we wish to encode.

One approach to the problem of finding this transformation is to define it in a blockwise manner over the support of the image. This was first successfully done by Jacquin in 1988. Our group has developed a method for encoding of grayscale images. In this method, the transformation is defined over triangular "destination blocks" in the support. The grayscale information within these blocks is calculated by affine maps of the grayscale information within other "source blocks", aso triangular from the same image. By specifying the destination blocks and the affine maps we can define the image-to-image transformation. This method can also be extended to volume coding or image sequence coding.

Another kind of problem that is currently being investigated is that of finding the parameters of a known transformation when presented only with the fixed p oint of this transformation. Here the transformations are so called iterated fun ction systems (IFS). This problem is not at all trivial, and involves nonlinear optimization in a large-dimensional parameter space. A solution to this problem would give much higher compression ratios than is possible with current methods.

In solving this problem, we are searching for a suitable metric, a distance measure between images. One strong candidate is the Kantorovich metric (sometimes referred to as the Hutchinson metric) which is believed to perform well in the case of fractal images. This metric is however difficult to compute numerically, and efforts are made towards the development of fast algorithms.

A very fine example of the fruitful merging of fractal and traditional image coding is the experimental image encoder that defines contractive transformations in different levels in subband image pyramids. This method has shown good resu lts at a bit rate of 0.5-1.0 bits per pixel.

TELE-ROBOTICS

This project aims to utilize variable resolution coding schemes for remote control/visual feedback applications.

INTERFACE

Multimodal Analysis/Synthesis System for Human Interaction to Virtual and Augmented Environments. This is a project within the ACTS-programme.
See the official InterFace home page

MUHCI

MUltimodal Human Computer Interaction.
This Research Transfer Network started September 2000.

Informationsansvarig: Harald Nautsch
Senast uppdaterad: 2012-03-06