Presentation at VAE 2018

Our colleague Zsolt Szendrei presented the article “Zs. Szendrei , N. Varga, L. Bokor: A SUMO-based Hardware-in-the-Loop V2X Simulation Framework for Testing and Rapid Prototyping of Cooperative Vehicular Applications” on the 23rd of May 2018 at the 2nd International Conference on Vehicle and Automotive Engineering – 23-25 May 2018, University of Miskolc, Hungary (VAE 2018).


Abstract. Vehicle-to-Anything (V2X) technologies aim at providing globally standardized communication tools to efficiently transmit information between all players of the transportation ecosystem. Based on such extensive data exchange between traffic objects V2X helps to create an advanced domain of transportation called Cooperative Intelligent Transportation Systems (C-ITS) where an ever-growing scale of cooperative vehicular applications/services facilitate enhanced safety and comfort on the road and lead towards fully automated transportation in the future. C-ITS relies on a complex architecture consisting of a cross-layer op-timized sophisticated protocol stack, hybrid radio access solutions, computing al-gorithms, decision schemes, special interfaces, internet-of-things (IoT) integra-tion, etc. Moreover, C-ITS and the support of cooperative use-cases demand high reliability, enhanced Quality of Service/Quality of Experience (QoS/QoE), and rock-solid hardware/software implementations working efficiently and securely even in the most complicated environments including extreme traffic circumstanc-es or unpredictable actions. Therefore, deliberate system testing is a crucial and strategic process, especially when we are closing to the wide-scale deployment phase of real-life C-ITS solutions. Our proposed hardware-in-the-loop (HiL) V2X simulation framework was designed to offer a cost-efficient and simple toolset for testing and rapid prototyping of cooperative vehicular solutions by partially replacing costly, time-consuming and oftentimes dangerous field tests with an easy to install, tabletop laboratory test- and development suite.

Presentation in Žabljak – IT 2018

Our colleagues Norbert Varga and László Bokor together with co-authors Ivana Ognjanović and Ramo Šendelj from Montenegro presented their accepted paper entitled “On the mobility management performance of NEMO-based nested wireless body area networks” in Žabljak at the 23. Information Tehnology (IT 2018) conference.

Given the currently fast evolution of wireless access technologies, high-performance mobile devices and wide variety of wearable medical sensors, electronic and mobile healthcare (eHealth and mHealth) services are receiving particular attention nowadays. Several mHealth application scenarios strongly rely on mobile or embedded devices interconnected with medical sensors via Wireless Body Area Networks (WBANs). The vast majority of these services require strict medical level Quality of Service (QoS) and Quality of Experience (QoE) provision. Emergency use-cases like remote patient monitoring, tele-consultation and guided surgical intervention demand real-time communication and appropriate connection quality during any mobility event. In many cases the mHealth WBANs are nested into other overlay access networks around the patient. To fulfil the quality requirements of such applications, during the various mobility scenarios not only a single mobile entity has to be considered, but also entire nested WBANs (moving between different networks) have to be taken into account. If network layer mobility management is required (like in case of inter-technology handovers under heterogeneous radio coverages), still NEMO Basic Support (RFC 3963) is the most common standardized approach to be implemented. Motivated by this, the paper investigates mobility management performance issues of NEMO-based nested WBANs. The evaluation is based on INET/OMNeT++ simulations and transport layer characteristics.

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.