5G V2X demonstration on Magyar Telekom’s 5G Verticals conference

Our colleagues Norbert Varga and László Bokor together with Péter Hegyi from Nokia Bell Labs demonstrated their latest results on simulation of multiple dynamic V2X communication / service provision environments in heterogeneous 5G telco cloud systems. The demonstration was held during Magyar Telekom’s 5G VERTICALS – NEXT GENERATION BUSINESS CONFERENCE and showcased 5G V2X communication scenarios where dynamic V2X communication / service provision environments are simultaneously available for connected/autonomous vehicles and other users with highly different communication characteristics and network usage profile. Advanced 5G features like network slicing, application scaling, hybrid multiaccess V2X communication and adaptive network function placement have been applied to demonstrate how use-cases of connected and autonomous vehicles can be efficiently supported in 5G telco cloud systems.



Intelligent traffic light controller systems – Paper presentation on ITST 2017

Our colleagues Norbert Varga and László Bokor together with András Takács, József Kovács and László Virág from Commsignia Ltd. have presented their results on  V2X communication-centric traffic light controller systems during the 15th International Conference on ITS Telecommunications (ITST) in Warsaw, Poland. The presented work (available on ieeexplore) focuses on advanced traffic light / traffic signal controller systems which will play an important role in adaptively and dynamically coordinating individual traffic lights of near future smart cities to manage city-wide objectives of traffic operations using vehicle-to-vehicle (V2V) and vehicle-to- infrastructure (V2I) communication  techniques (together referred as V2X).  Dynamic real-time information exchange between all the players of the traffic controlling ecosystem and fostering cooperative urban mobility are the main goals of the proposed architecture while the presented testbed showcases the authors’ proof-of-concept implementation of the proposed scheme.


Novel results on mHealth QoE evaluation – Presentation at QEEMS’17

Our colleagues Tamás Péteri, Norbert Varga and László Bokor have presented their novel results on mHealth QoE evaluation during the first International Young Researcher Summit on Quality of Experience in Emerging Multimedia Services (QEEMS 2017). Their paper (available online) focuses on pervasive and ubiquitous mHealth services that rely on heterogeneous network (HetNet) technologies comprising a combination of different cell types and different access technologies to ensure advanced communication solutions for critical services and patient-centric, customized, ’care anywhere’ mHealth applications. The paper presents the initial results of a medical Quality of Experience (m-QoE)
evaluation procedure performed to analyse multimedia-intensive mHealth applications over heterogeneous mobile network access technologies.

New DNS64 performance measurement tool

DNS64 and NAT64 are IPv6 transition technologies enabling IPv6 only clients to communicate with IPv4 only servers. Our performance measurement tool, dns64perf++, is the word’s first standard DNS64 benchmarking tool that complies with the relevant Internet Draft. Its design and implementation is documented in our new position paper: G. Lencse, D. Bakai, “Design and implementation of a test program for benchmarking DNS64 servers”, IEICE Transactions on Communications, vol. E100-B, no. 6. pp. 948-954, Jun. 2017. DOI: 10.1587/transcom.2016EBN0007

Conference paper published at IEEE 18th International Conference on e-Health Networking, Applications and Services (Healthcom)

A new conference paper entitled “Performance evaluation of mobile medical multimedia transmission over ITS GeoNetworking protocol” has been presented and published at IEEE 18th International Conference on e-Health Networking, Applications and Services (Healthcom). For more information please visit the conference’s website and check our paper on IEEEXplorer.

Poster demonstration at “COST Intelligent Transport Systems: a Tool or a Toy?” Conference

Efficient traffic control and management is a fundamental and urgent challenge in our ever-growing cities. Evolving traffic light controller systems are playing an important role in these architectures by adaptively and dynamically coordinating individual traffic lights to achieve city-wide objectives of traffic operations. The integration of such systems with vehicle-to-anything (V2X) communication techniques could easily be the next step of this evolution. In this poster proposal a proof-of-concept implementation of V2X-integrated traffic light controller systems is presented.

New journal paper published about the MPT network layer multipath library in Computer Communications (Elsevier)

Multipath communication is aimed to utilize the multiple network interfaces of our contemporary IT devices for throughput aggregation and/or resilient communication. Unlike the more well-known MPTCP, the MPT multipath communication library operates at network level and builds on GRE in UDP encapsulation. For more information, please see our paper: B. Almási, G. Lencse, Sz. Szilágyi, “Investigating the Multipath Extension of the GRE in UDP Technology”, Computer Communications (Elsevier), vol. 103, no. 1, pp. 29-38, May 1, 2017, DOI: 10.1016/j.comcom.2017.02.002

New journal paper published on Free Viewpoint Video in Multimedia Systems Journal (Springer)

MultimediaSystemsJournalThe Multimedia Systems Journal is one of the most popular journals on the field of media technology. The new paper is referenced as Árpád Huszák, Balázs Háló, “Optimized Camera Handover Scheme in Free Viewpoint Video Streaming”, Multimedia Systems Journal (MMSJ), Springer, ISSN 0942-4962, 2017
(Impact Factor 2016: 1.410)

The paper is available at the journal homepage.

New journal paper about the performance estimation of the mtd64-ng DNS64 implementation

DNS64 and NAT64 are IPv6 transition technologies enabling IPv6 only clients to communicate with IPv4 only servers. Mtd64-ng is a novel DNS64 implementation, being a successor of MTD64. In this paper, the performance of mtd64-ng is compared with that of MTD64 and BIND. It is found that under heavy load conditions mtd64-ng can answer six times as many “AAAA” record requests per second than BIND. Mtd64-ng fixed two issues of MTD64 and also outperformed its predecessor by answering 46% more “AAAA” record requests per second under heavy load conditions. For further details, please refer to our paper: Gábor Lencse, “Performance Estimation of the Mtd64-ng DNS64 Implementation”, International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems, vol. 5, no 3, pp. 160-165, DOI: 10.11601/ijates.v5i3.176

HTE BSc thesis competition 2nd prize

Our student, Daniel Kovács received 2nd prize for his BSc thesis titled “Security Analysis of IPv6 Transition Technologies” at the Scientific Assiciation for Infocommunications (HTE) BSc thesis competition. His supervisor was Dr. Gábor Lencse.