Publications

Journal & Magazine Papers

• Sacha Trifunovic, Sylvia T. Kouyoumdjieva, Bernhard Distl, Ljubica Pajevic, Gunnar Karlsson, Bernhard Plattner, A Decade of Research in Opportunistic Networks – Challenges, Relevance, and Future Directions, in IEEE Communications Magazine, vol. 55, no. 1, pp. 168-173, January 2017 [IEEExplore] [PDF]
  

• Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, From Opportunistic Networks to 3GPP Network-Independent Device-to-Device Communication, in ACM GetMobile (Mobile Computing and Communications Review), vol.20, issue 2, pp. 22-27, April 2016 [ACM DL]
  

• Olafur Helgason, Sylvia T. Kouyoumdjieva, Ljubica Pajevic, Emre A. Yavuz, Gunnar Karlsson, A Middleware for Opportunistic Content Distribution, in Special Issue on Mobile Wireless Networks, Computer Networks, Elsevier, vol. 107 (2), pp. 178-193, October 2016 [ScienceDirect] [PDF]
  

• Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, Impact of Duty Cycling on Opportunistic Communication, in Mobile Computing, IEEE Transactions on, vol.15, no.7, pp. 1686 - 1698, July 2016 [IEEExplore]
  

• Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, Energy-Aware Opportunistic Mobile Data Offloading Under Full and Limited Cooperation, in Computer Communications, Elsevier, vol. 84, pp. 84-95, June 2016 [ScienceDirect] [PDF]
  

• Olafur Helgason, Sylvia T. Kouyoumdjieva, Gunnar Karlsson, Opportunistic Communication and Human Mobility, in Mobile Computing, IEEE Transactions on, vol.13, no.7, pp.1597-1610, July 2014 [IEEExplore] [PDF]
  

Conference Papers

• Peter Danielis, Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, UrbanCount: Mobile Crowd Counting in Urban Environments, in Proc. 8th IEEE Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON), Vancouver, Canada, October 2017. Best paper award

• Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, Precision of a Proximity-based Indoor Positioning System with Bluetooth Low Energy Beacons, in Proc. 13th Swedish National Computer Networking Workshop (SNCNW), Halmstad, Sweden, May 2017

• Peter Danielis, Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, DiVote: A Distributed Voting Protocol for Mobile Device-to-Device Communication, in Proc. International Teletraffic Congress (ITC 28), Würzburg, Germany, September 2016 [IEEExplore] [PDF]

• Peter Danielis, Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, A Protocol for Distributed Voting in Urban Environments, in Proc. 12th Swedish National Computer Networking Workshop (SNCNW), Sundsvall, Sweden, June 2016

• Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, Device-to-Device Mobile Data Offloading for Music Streaming, in Proc. IFIP/TC6 Networking, Vienna, Austria, May 2016 [IEEExplore] [PDF]

• Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, Energy-Aware Opportunistic Mobile Data Offloading for Users in Urban Environments, in Proc. IFIP/TC6 Networking, Toulouse, France, May 2015 Top 5 Finalist for IEEE Sweden VT-COM-IT Best Conference Student Paper Award [IEEExplore] [PDF]

• Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, The Virtue of Selfishness: Device Perspective on Mobile Data Offloading, in Proc. IEEE Wireless Communications and Networking Conference (WCNC), New Orleans, LA, USA, March 2015 [IEEExoplore] [PDF]
  

• Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, Opportunistic Networks with Energy Constraints, in Proc. 10th Swedish National Computer Networking Workshop (SNCNW), Västerås, Sweden, June 2014

• Sylvia T. Kouyoumdjieva, and Gunnar Karlsson, Energy Savings in Opportunistic Networks, in Proc. 11th IEEE/IFIP Annual Conference on Wireless On-demand Network Systems and Services (WONS), Obergurgl, Austria, April 2014 [IEEExoplore] [PDF]
  

• Sylvia T. Kouyoumdjieva, Sanpetch Chupisanyarote, Olafur Helgason, Gunnar Karlsson, Caching strategies in opportunistic networks, in Proc. IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks (WoWMoM), Autonomic and Opportunistic Communications (AOC) workshop, San Francisco, CA, USA, June 2012 [IEEExplore]
  

• Sylvia T. Kouyoumdjieva, Olafur Helgason, Emre A. Yavuz, Gunnar Karlsson, Evaluating an energy-efficient radio architecture for opportunistic communication, in Proc. IEEE International Conference on Communications (ICC), Energy Efficiency in Wireless Networks & Wireless Networks for Energy Efficiency (E2Nets) workshop, Ottawa, ON, Canada, June 2012 [IEEExplore] [PDF]
  

• Olafur Helgason, and Sylvia T. Kouyoumdjieva, Enabling Multiple Controllable Radios in OMNeT nodes, in Proc. 4th International ICST Conference on Simulation Tools and Techniques (SIMUTools), OMNeT workshop, Barcelona, Spain, March 2011 [PDF]
  

• Olafur R. Helgason, Emre A. Yavuz, Sylvia T. Kouyoumdjieva, Ljubica Pajevic, Gunnar Karlsson, A Mobile Peer-to-Peer System for Opportunistic Content-Centric Networking, in Proc. 2nd ACM SIGCOMM Workshop on Networking, Systems, and Applications on Mobile Handhelds (MobiHeld), New Delhi, India, September 2010 [ACM DL] [PDF]
  

• Olafur Helgason, Sylvia Kouyoumdjieva, Gunnar Karlsson, Does Mobility Matter?, in Proc. 7th IEEE/IFIP Annual Conference on Wireless On-demand Network Systems and Services (WONS), Kranjska Gora, Slovenia, February 2010. Best paper award [IEEExplore] [PDF]
  

Demos

• Sylvia Kouyoumdjieva, Emre A. Yavuz, Olafur R. Helgason, Ljubica Pajevic, Gunnar Karlsson, Opportunistic Content-Centric Networking: The Conference Case Demo, demonstration at IEEE International Conference on Computer Communications (INFOCOM) 2011, Shanghai, China, April 2011 [PDF]
  

• Olafur R. Helgason, Emre A. Yavuz, Sylvia T. Kouyoumdjieva, Ljubica Pajevic, Gunnar Karlsson, Demonstrating a Mobile Peer-to-Peer System for Opportunistic Content-Centric Networking, demonstration at 2nd ACM SIGCOMM Workshop on Networking, Systems, and Applications on Mobile Handhelds (MobiHeld), New Delhi, India, September 2010 [PDF]
  

Posters

• Sanpetch Chupisanyarote, Sylvia T. Kouyoumdjieva, Olafur Helgason, Gunnar Karlsson, Caching in opportunistic networks with churn, in Proc. 9th IEEE/IFIP Annual Conference on Wireless On-demand Network Systems and Services (WONS), Courmayeur, Italy, January 2012 [IEEExplore]
  

• Sylvia Kouyoumdjieva, Emre A. Yavuz, Olafur R. Helgason, Ljubica Pajevic, Gunnar Karlsson, Opportunistic Content-Centric Networking: The Conference Case Demo, in Swedish Workshop on Wireless Ad-hoc Networks (ADHOC), Stockholm, Sweden, May 2011
  

Theses

• Sylvia T. Kouyoumdjieva, System Design for Opportunistic Networks, Stockholm 2015, (Doctoral Thesis) [PDF]

• Sylvia T. Kouyoumdjieva, Opportunistic Content Distribution: A System Design Approach, Stockholm 2012 (Licentiate Thesis) [PDF]

• Sylvia Kouyoumdjieva, Optimizing Traffic Locality in BitTorrent via Biased Neighbor Selection, Stockholm 2009 (Master Thesis) [PDF]