• Computer Networks (senior undergraduate course - in serbian)
• Multi-User Information Theory (2004/05) (graduate course - in serbian)
• LDPC Codes and Iterative Decoding (2005/06) (graduate course - in serbian)

My research interests are in the area of information theory and coding theory, with applications to multi-user scenarios and communication networks.

• Codes on graphs, LDPC Codes, Optimized Finite-Length Irregular LDPC Code Design.
• Convergence behavior of iterative BP decoding, LP decoding, Pseudocodewords of the Tanner Graphs.
• Rateless (Fountain) Codes, UEP Rateless Codes, Expanding Window Fountain Codes, Rateless Coding for Multimedia Streaming.
• Distributed Rateless Coding for WSN applications, Distributed Random Linear Coding for WSN applications.
• Network Coding, UEP Random Linear Coding, Network Coding for Multimedia Streaming. 
• Frame Synchronization using LDPC codes.
• Multi-User Information Theory, Network Information Theory.
• Distributed Source Coding, Distributed Compressed Sensing.

Journals:

Cedomir Stefanovic, Dejan Vukobratovic, Francesco Chiti, Lorenzo Niccolai, Vladimir Crnojevic, Romano Fantacci: "Urban Infrastructure-to-Vehicle Traffic Data Dissemination Using UEP Rateless Codes", to  appear, IEEE Journal on Selected Areas in Communications (Special Issue on Vehicular Communications and Networks), 2010. 
Dejan Vukobratovic, Cedomir Stefanovic, Vladimir Crnojevic, Francesco Chiti, Romano Fantacci: "Rateless Packet Approach for Data Gathering in Wireless Sensor Networks", IEEE Journal on Selected Areas in Communications (Special Issue on Simple Wireless Sensor Networks Solutions), Vol. 28, No. 7, September 2010. 
Dejan Vukobratovic, Vladimir Stankovic, Dino Sejdinovic, Lina (Fagoonee) Stankovic, Zixiang Xiong: “Scalable Video Multicast Using Expanding Window Fountain Codes," IEEE Transactions on Multimedia, Vol. 11, No. 6 (Special Issue on Quality-Driven Cross-Layer Design for Multimedia Communications), pp. 1094-1104, October 2009.
IEEE Explore link: , pdf:
Dino Sejdinovic, Dejan Vukobratovic, Angela Doufexi, Vojin Senk, Rob Piechocki: “Expanding Window Fountain Codes for Unequal Error Protection”, IEEE Transactions on Communications, Vol. 57, No. 9, pp. 2510-2516, September 2009.
IEEE Explore link: , pdf:
• Dejan Vukobratovic, Vojin Senk: “Design and Evaluation of Irregular LDPC Codes Using ACE Spectrum”, IEEE Transactions on Communications, Vol. 57, No. 8, pp. 2272-2279, August 2009.
  IEEE Explore link: , pdf:
• Dejan Vukobratovic, Vojin Senk: “Generalized ACE Constrained Progressive-Edge-Growth LDPC Code Design”, IEEE Communications Letters, Vol.12, No.1, pp. 32-34, January 2008.
  IEEE Explore link: , pdf:

Conferences & Workshops:

• Dejan Vukobratovic, Vladimir Stankovic: "Towards Optimal Unequal Error Protection Random Linear Coding for Scalable Video Broadcasting," submitted, IEEE Packet Video Workshop PV 2010, Hong Kong, China, December 2010.
• Dejan Vukobratovic, Vladimir Stankovic: "Unequal Error Protection Random Linear Coding for Multimedia Communications," accepted for publication, IEEE Multimedia and Signal Processing Workshop MMSP 2010, Saint Malo, France, October 2010.
• Dejan Vukobratovic, Cedomir Stefanovic, Vladimir Stankovic: "Fireworks: A Random Linear Coding Scheme for Distributed Storage in Wireless Sensor Networks," accepted for publication, IEEE Information Theory Workshop ITW 2010, Dublin, Ireland, September 2010.
• David Gomez Barquero, Kristian Nybom, Dejan Vukobratovic, Vladimir Stankovic: "Scalable Video Coding for Mobile Broadcasting DVB Systems," invited paper, IEEE International Conference on Multimedia and Expo ICME 2010, Singapore, July 2010.
• Cedomir Stefanovic, Dejan Vukobratovic, Vladimir Crnojevic, Lorenzo Niccolai, Francesco Chiti, Romano Fantacci: "Contaminated Areas Monitoring via Distributed Rateless Coding with Constrained Data Gathering," accepted for publication, International Wireless Communications and Mobile Computing Conference IWCMC 2010, Caen, France, June 2010.
• Dragan Rastovac, Dejan Vukobratovic, Lina Stankovic, Vladimir Stankovic: "The Design of Rate-Compatible LDPC Codes for IR-HARQ Systems over Erasure Channels," Proceedings of the IEEE International Communications Conference ICC 2010, Cape Town, South Africa, May 2010.
  IEEE Explore link:
• Francesco Chiti, Romano Fantacci, Dejan Vukobratovic: "Joint Discrete Power-Level and Delay Optimization for Network Coded Wireless Communications," Proceedings of the IEEE International Communications Conference ICC 2010, Cape Town, South Africa, May 2010.
  IEEE Explore link:
• Cedomir Stefanovic    , Dejan Vukobratovic, Tina Karabenc, Milos Rovcanin, Vladimir Crnojevic: "On Energy Efficiency of Rateless Packet Scheme for Distributed Data Storage in Wireless Sensor Networks", Proceedings of the IEEE International Conference on Wireless On-Demand Systems and Services WONS 2010, Kranjska Gora, Slovenia, February 2010.
  IEEE Explore link: , pdf:  
• Cedomir Stefanovic    , Dejan Vukobratovic, Vladimir Stankovic: "On Distributed LDGM and LDPC Code Design for Networked Systems," Proceedings of the IEEE Information Theory Workshop ITW 2009, Taormina, Italy, October 2009.
  IEEE Explore link: , pdf:  
• Francesco Chiti, Romano Fantacci    , Russel Johnson, Vladimir Crnojevic, Dejan Vukobratovic: "End-to-end Delay Analysis for Reliable Communications over Lossy Channels: Integrating Network Coding and ARQ Schemes," Proceedings of the IEEE GLOBECOM 2009, Honolulu, USA, December 2009.
  IEEE Explore link:  
• Dejan Vukobratovic, Vladimir Stankovic, Lina Stankovic, Dino Sejdinovic: "Precoded EWF Codes for Unequal Error Protection of Scalable Video," Proceedings of the MobiMedia 2009, Kingston Upon Thames, UK, September 2009.
  pdf:   
• Cedomir Stefanovic    , Dejan Vukobratovic, Dragana Bajic, Lina Stankovic, Vladimir Stankovic: "Blind Time-Period Synchronization for LDPC Convolutionally Coded Transmission", Proceedings of the EUSIPCO 2009, Glasgow, UK, August 2009.
  pdf:
• Dejan Vukobratovic, Cedomir Stefanovic    , Milos Stojakovic    , Vladimir Stankovic: "Raptor Packets: A Packet-Centric Approach to Distributed Raptor Code Design", Proceedings of the IEEE Int'l Symposium on Information Theory ISIT 2009, Seoul, Korea, July 2009.
  IEEE Explore link: , pdf:
• Dejan Vukobratovic, Cedomir Stefanovic    , Vladimir Crnojevic, Francesco Chiti, Romano Fantacci    : "A Packet-Centric Approach to Distributed Rateless Coding in Wireless Sensor Networks", Proc. of the IEEE Int'l Conference on Sensor, Mesh and Ad-Hoc Networks and Communications SECON 2009, Rome, Italy, June 2009.
  IEEE Explore link: , pdf:
• Cedomir Stefanovic    , Boris Antic, Vladan Minic, Dejan Vukobratovic, Vladimir Crnojevic, "Integrated System for Remote Environment Monitoring", Proc. of CIOSTA 2009, Reggio Calabria, Italy, June 2009.
• Kristian Nybom, Dejan Vukobratovic, Jerker Bjorkquist: ”Sparse Graph AL-FEC Sollutions for IP Datacasting in DVB-H”, Proceedings of the IEEE Int'l. Symposium on Broadband Multimedia Systems and Broadcasting BMSB 2009, Bilbao, Spain, May 2009.
  IEEE Explore link: , pdf:
• Cedomir Stefanovic    , Dejan Vukobratovic, Dragana Bajic: "Low-Complexity List-Based Frame Synchronization for LDPC Coded Transmission", Proceedings of the IEEE Int'l Communications Conference ICC 2009, Dresden, Germany, June 2009.
  IEEE Explore link: , pdf:  
• Dejan Vukobratovic, Vladimir Stankovic, Dino Sejdinovic, Lina (Fagoonee) Stankovic, Zixiang Xiong: “Expanding Window Fountain Codes for Scalable Video Multicast”, Proceedings of the IEEE Int'l Conference on Multimedia and Expo - ICME 2008, Hannover, Germany, June 2008. 
  IEEE Explore link: , pdf:
• Dejan Vukobratovic, Vladimir Stankovic, Dino Sejdinovic, Lina (Fagoonee) Stankovic, Zixiang Xiong: “Scalable Data Multicast Using Expanding Window Fountain Codes”, Proceedings of the 45th Annual Allerton 2007 Conf. on Communication, Control and Computing, Monticello, IL, USA, September 2007.
  pdf:
• Dino Sejdinovic, Dejan Vukobratovic, Angela Doufexi, Vojin Senk, Rob Piechocki: “Expanding Window Fountain Codes for Unequal Error Protection”, Proceedings of the 41st Annual Asilomar 2007 Conf. on Signals, Systems and Computers, Pacific Grove, CA, USA, November 2007. 
  IEEE Explore link: , pdf:
• Dejan Vukobratovic, Vojin Senk: “On the Optimized Patent-Free LDPC Code Design for Content Distribution Systems”, Proceedings of the IEEE International Symposium on Wireless Communications Systems ISWCS 2007, Trondheim, Norway, October 2007.
  IEEE Explore link: , pdf:  
• Dejan Vukobratovic, Aleksandar Djurendic    , Vojin Senk: “ACE Spectrum of LDPC Codes and Generalized ACE Design”, Proceedings of the IEEE International Communications Conference ICC 2007, pp. 665-670, Glasgow, UK, June 2007.
  IEEE Explore link: , pdf:  
• Dejan Vukobratovic: “LDPC Codes with Extremal ACE Properties”, Proceedings of the IEEE Winter School on Information Theory 2007, La Colle sur Loup, France, March 2007.
  pdf:
• Pascal Vontobel, Roxana Smarandache, Negar Kiyavash, Jason Teutsch, Dejan Vukobratovic: “On the Minimal Pseudo-Codewords of Codes from Finite Geometries”, Proceedings of the IEEE International Symposium of Information Theory ISIT 2005, pp. 980-985, Adelaide, Australia, September 2005.
  IEEE Explore link: , pdf:  
• Dragana Bajic, Cedomir Stefanovic    , Dejan Vukobratovic: “Search Process and Probabilistic Bifix Approach”, Proceedings of the IEEE International Symposium of Information Theory ISIT 2005, pp. 19-23, Adelaide, Australia, September 2005.
  IEEE Explore link: , pdf:  
• Dejan Vukobratovic, Miroslav Despotovic: “On the Packet Lengths of Rateless Codes”, Proceedings of the IEEE EUROCON 2005 - "Computer as a Tool", pp. 672-676, Belgrade, Serbia & Montenegro, November 2005.
  IEEE Explore link:
• Dejan Vukobratovic: “On the equivalence of BP and LP Decoding on the binary erasure channel”, Proceedings of 4th International Workshop on Optimal Codes and Related Topics 2005, pp. 275-282, Pamporovo, Bulgaria, June 2005.
• Vojin Senk, Dejan Vukobratovic, Ivana Djurdjevic: “A new method of BER estimation for iteratively decodable codes”, Proceedings of the IEEE/SITA International Symposium of Information Theory and Applications ISITA 2004, pp. 27-30, Parma, Italy, October 2004.

 Patents:

Dejan Vukobratovic, Cedomir Stefanovic    , Vladimir Crnojevic, Vojin Senk: "Rateless Packet" Scheme for Distributed Rateless Coding in Networked Systems, Int'l Patent Application No. PCT/RS2009/000018, 2009. 

Projects:

FP7-PEOPLE-IEF-2008 Marie Curie (236234): "MMSTREAM": Design, Analysis and Applications of Robust and Efficient Transmission Schemes for Multimedia Streaming in Wireless Networks, 2009-2010.