CV

I'm a research associate in computer science and head the Network Architectures group at the chair for Communication and Distributed Systems at RWTH Aachen University. Before I was with Anja Feldmann at TU Berlin / Deutsche Telekom Innovation Laboratories. I was a visiting scholar at the group of Paul Barford at the University of Wisconsin - Madison, USA.

I studied computer science at Darmstadt University of Applied Sciences, Institute Eurecom (Sophia Antipolis, France) and Darmstadt University of Technology and hold a Bachelor of Science (B.Sc.) and Master of Science (M.Sc.) degree. From 2004 to 2006 I was with the Fraunhofer IGD where I worked on network architectures for telemedical applications. I obtained a Ph.D. (Dr. rer. nat.) from TU Berlin in 2013 (Advisor: Anja Feldmann).

News

2017-04: I am co-organizing this years IMC Shadow PC. Please apply by May 26th!
2017-04: New TMA paper: measurement of cloud email (Github: code+data).
2017-04: I will be teaching a new course in the summer on core networking, measurements, and QoE with an excursion to DE-CIX (largest IXP)
2017-04: Excited to welcome Joerg Liebeherr (University of Toronto) on Monday, April 10 and Florin Ciucu (University of Warwick) on Wednesday, April 12
2017-01: Dagstuhl seminar 17032 on Network Function Virtualization in Software Defined Infrastructures is over. Thanks to all participants for making this a great success!
2017-01: Serving on the TPC for ACM SIGCOMM Internet QoE
2016-12: Phase II (2017-2020) of the DFG Collaborative Research Center 1053 MAKI got fundet. I have a open PhD position on measurements
2016-12: NetSys PhD Forum: we accepted 13/17 submissions, list of contributions now online
2016-11: Serving on the ITC29 and IEEE QoMEX TPC
2016-10: Organizing the IEEE IM: QoE Management Workshop. Please submit your QoE work!
2016-09: Looking for PhD forum contributions
2016-09: I am guest editing a topic collection on QoE Network Management in the Springer Quality and User Experience journal. Please send your QoE related work
2016-08: Preliminary analysis of Bitcoin as data store will appear as CCS Poster: congrats Roman
2016-07: Our NFV performance position paper appeared at CCR
2016-06: New papers on Web QoE (IEEE QoMEX), delay sensitivity gaming QoE (IEEE QCMan), State Control Plane (IFIP Networking)
2016-01: My Dagstuhl seminar proposal on Network Function Virtualization in Software Defined Infrastructures got accepted.
2016-01: Our special issue on SDN/NFV for Flexible Network Management appeared (Editorial)
2015-08: I'll be co-chairing QCMan'16 and will be serving on the PQS PC next year. Submit your QoE related work!
2015-08: Invited seminar talk by the Academic Centre of Excellence for Cyber Security Research at University College London on August 20th: "An Internet Census Taken by an Illegal Botnet"

Research Interests

My research focuses on internet measuremet and management, with an emphasis on improving service quality.

Software Defined Networking / Network Functions Virtualization
Internet Measurement
Quality of Experience / Video & Audio Quality Assessment
Low Latency Networking
Spam
Web Caching

Projects

	Principal Investigator and member of the general assembly: SSICLOPS Scalable and Secure Infrastructures for Cloud Operations (funded by the EU under Horizon 2020, 2015-2018) The project provides funding for 2 PhD positions
	Principal Investigator: DFG Collaborative Research Center SFB 1053 MAKI MAKI – Multi-Mechanisms Adaptation for the Future Internet 2017-2020(Entry in GPRIS project database) The project provides funding for 1 PhD position

Awards / Grants

03/2009 - Master's Thesis Award (PDF) (Award Homepage)
Communication in Distributed Systems (KuVS) Group

03/2010 - Master's Thesis Award (Award Announcement Conference Report)
GI/ITG Measurement, Modelling and Evaluation of Computing Systems group.

2011: Student Travel Grant: IEEE INFOCOM, Shanghai, China

Professional Services

Organizing Committees

2017: Organizer: Dagstuhl seminar 17032: Network Function Virtualization in Software Defined Infrastructures
2017: ITC29 Publicity Chair
2017: NetSys PhD Forum Chair
2016: PQS Special Session Chair PQS 2016 special session on Gaming

TPC Chair

2017: IEEE IM: QoE Management Workshop IFIP/IEEE International Symposium on 2017 Integrated Network Management: Workshop QoE Management
2017: SDNFlex: Workshop on Software-Defined Networking and Network Functions Virtualization for Flexible Network Management (SDNFlex) [co-located with NetSys 2017]
2016: IEEE QCMan TPC Co-Chair: Forth International Workshop on Quality of Experience Centric Management (co-located with ITC 28)
2015: SDNFlex Initiatitor + TPC Chair: Workshop on Software-Defined Networking and Network Function Virtualization for Flexible Network Management (SDNFlex) [co-located with Netsys 2015]

Technical Program Committee Member

2017: ITC29International Teletraffic Congress (ITC-29)
2017: ACM SIGCOMM Internet-QoE workshop
2017: IEEE QoMEX 9th International Conference on Quality of Multimedia Experience
2017: IEEE NFV-SDN IEEE Conference on Network Function Virtualization and Software Defined Networks
2017: IEEE CloudCom
2017: IEEE INFOCOM DCC IEEE INFOCOM Workshop on Distributed Cloud Computing
2017: IEEE NetSoft IEEE Conference on Network Softwarization
2017: NetSys: The International Conference on Networked Systems
2016: IEEE NFV-SDN
2016: IEEE CloudCom premier conference on Cloud Computing
2016: ACM CoNEXT CANCloud-Assisted Networking
2016: MONAMI 8th International Conference on Mobile Networks and Management
2016: ITC: International Teletraffic Congress (ITC-28): Area 4 (Next generation and future Internet architectures)
2016: Man SDN/NFV
2016: PQS: 5th International Workshop on Perceptual Quality of Systems
2016: IEEE ICCE-Berlin: IEEE International Conference on Consumer Electronics
2016: IEEE NetSoft: IEEE Conference on Network Softwarization
2015: SCRUM Strategies for Consistency, Replication, and Understandability in Middleware
2015: IEEE CloudCom premier conference on Cloud Computing
2015: ManSDN/NFV: International Workshop on Management of SDN and NFV Systems
2015: MONAMI 7th International Conference on Mobile Networks and Management
2015: ACM SIGMETRICS DCC ACM SIGMETRICS Workshop on Distributed Cloud Computing
2015: IEEE QCMan IFIP/IEEE Workshop on QoE Centric Management
2014: MONAMI 6th International Conference on Mobile Networks and Management
2013: IEEE WNM Workshop on Internet Measurement
2013: IEEE STEM
2010: ATNAC: The Australasian Telecommunication Network Application Conference 2010, Auckland, New Zealand (Internet Technology Track)
2010: IEEE IWQoS: 18th IEEE International Workshop on Quality of Service 2010, Tsinghua University, Beijing, China
2010: ACM SIGMETRICS (Shadow TPC), Columbia University, New York

Conference Referee

2015: IEEE MASCOTS ACM TVX IEEE QoMEX/
2013: IEEE CyberC, IEEE P2P, IEEE Globecom
2012: EUSIPCO 2012, MMB 2012, EUSIPCO,
2011: IEEE ISCC
2010: NGI, IEEE IPDPS, ITC
2009: Euro-NGI 2009 INFOCOM PAM,
2008: IWQoS, P2P

Journal Referee

2011, 2014, 2015, 2016: IEEE COMMAG: IEEE Communications Magazine
2012, 2016, 2017: IEEE TNSM: IEEE Transactions on Network and Service Management
2014, 2015, 2016: Springer Mobile Networks and Applications
2010, 2011, 2012: TON: IEEE/ACM Transactions on Networking
2014, 2015: ACM SIGCOMM CCR: ACM SIGCOMM Computer Communication Review
2017: Springer MTAP: Spinger Multimedia Tools and Applications
2015: IEEE TVT: IEEE Transactions on Vehicular Technology
2014: IEEE COMPUTER
2013: COMCOM: Elsevier Computer Communications
2011: IEEE J-SAC: IEEE Journal on Selected Areas in Communications
2010: AEÜ: International Journal of Electronics and Communications
2010: ToB: IEEE Transactions on Broadcasting
2010: AoT: Annals of Telecommunications
2009: TMM: IEEE Transactions on Multimedia

Editorial Boards

2016, 2017: Guest editor: Springer Quality and User Experience journal: Topic Collection on QoE Network Management
2015, 2016: Editorial board: KuVS newsletter
2015: Guest-editor Wiley Journal of Network Management: Special issue on SDN & NFV (Editorial)

Proposal Reviewer

2009: Euro-NF Joint Research Project proposal

Scribe

2011: IMC 2011: Supporting the IMC TPC meeting held in New Jersey, USA.

Member

ITG 5.2.1: System Architecture and Traffic Engineering interest group

Recent invited talks

2016-02-29: Kernel Accelerated Packet Processing (Invited talk, 1st ITN CleanSky Conference Heidelberg)
2015-09-24: Measuring and Optimizing the Cloud (Invited talk, ITG 5.2.1 Cloud Workshop, University of Tuebingen)
2015-09-16: Invited workshop: Scientific Writing (ITN CleanSky Summer School 2015, University of Goettingen)
2015-08-20: An Internet Census Taken by an Illegal Botnet (Invited talk, Academic Centre of Excellence for Cyber Security Research at University College London)
2015-04-15: Software Defined Networking & Network Functions Virtualization (invited talk 12. Sitzung des ITG-Fachausschusses 3.3 Übertragungstechnologien für elektronische Medien)
2015-04-14: On the origins of spam (Invited seminar talk, Project Leonardo RWTH Aachen)
2014-11-14: On the Origins of Spam (RWTH Science Night)

Teaching

RWTH Aachen University:

Lecture: Computer Systems Engineering
Summer 2015 Winter 2016/2017
Lecture: Research Focus Class: Privacy under Attack
Summer 2015: details Campus Record
Invited seminar talk:Spam RWTH Leonardo seminar: Das Internet: Globales Kommunikationsmedium und Herrschaftsinstrument
Summer 2015
Lecture: Research Focus Class on Communication Systems: Software Defined Networks (SDN) and Network Functions Virtualization (NFV)
Winter 2014/2015

TU Berlin:

Lecture: Network Protocols and Architectures
Winter 2008 Winter 2009 Winter 2010 Winter 2011 Winter 2012
Advanced Seminar: Network Architectures: Internet Measurement
Winter 2008 Summer 2011 Summer 2013
Advanced Seminar: Network Architectures: Internet Routing
Summer 2009

University of Applied Sciences Darmstadt:

Computer Graphics (lecture + lab course)
Summer 2005

Media Coverage

Press

2015: Unicum: Spam-Mails: Ein Informatiker auf der Jagd nach der dubiosen Netzbranche
2015: Aachener Nachrichten: Wer versendet eigentlich die Spammails?
2014: FAZ: Im Netz der bösen Jungs
2014: business impact (Issue 4/2014): Mail Flut
2014: Slashdot: Researchers Outline Spammers' Business Ecosystem
2014: The Register: Boffins pen 'Guide to better spamming'
2014: Net Security: Relations between spam landscape actors can be leveraged for detection
2014: WinFuture: Forscher dringen in Welt der Spammer ein und finden Kundentreue
2014: Threat post: A Spam Trinity: Email Harvesters, Botmasters, Spammers
2014: Slashdot: Internet Census 2012 Data Examined: Authentic, But Chaotic and Unethical

Radio

2014: Deutschlandfunk Computer und Kommunikation: Spam im Blick

Oliver Hohlfeld

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