Barkhausen Institut

Wireless Connectivity

What we do

We are working on the development of dependable wireless communications for the Internet-of-Things (IoT), i.e., which could be secure, reliable, and resilient, while satisfying the applications requirements, such as low latency. We focus our research on multi-connectivity, Physical Layer Security and in the combination of radar and communication links. While we perform mostly mathematical analysis and simulation studies of these research topics, we aim to develop new solutions that can be demonstrated in real life. For that purpose, we collaborate with BI’s Lab team and interact with the other groups at the BI to consider practical characteristics of hardware and system.

Regarding physical layer security, in our group we investigate new disruptive methodologies which can make us overcome some of the well-known difficulties for practical implementations : particularly by making the generation of longer and, hence, “more secure” encryption keys under realistic propagation environments, with or without line-of-sight or without mobility between the transmitter and the receiver.

In our group we investigate new waveforms for radar and communication and the appropriate signal-processing techniques that can be efficiently applied to both purposes at low cost.

For multi-connectivty we investigate methods that allow us to improve its efficiency, by adapting the amount of resources to the application requirements, channel conditions and traffic levels.

Publications

T. Hößler, P. Schulz, A.N. Barreto, M. Simsek, G. Fettweis, Dynamic Connectivity for Robust Applications in Rayleigh-Fading Channels, IEEE Communications Letters, 2019

T. Hößler, P. Schulz, M. Simsek, and G. P. Fettweis, Mission Availability for Wireless URLLC, in 2019 IEEE Global Communications Conference (Globecom), Waikoloa, USA, 2019

T. Hößler, M. Simsek, and G. P. Fettweis, Dependability Theory for Selection-Combined Channels with Rician Fading and Interference, IEEE 5G World Forum (5GWF), Dresden, 2019

L. Scheuvens, M. Symsek, A. N. Barreto, N. Franchi, G. Fettweis, Framework for Adaptive Controller Design Over Wireless Delay-Prone Communication Channels, IEEE Access, v. 7, p. 49726-49737, 2019​

L. Scheuvens,  T. Hößler, A. N. Barreto, G.P. Fettweis, Wireless Control Communications Co-Design via Application-Adaptive Resource Management, IEEE 5G World Forum, Dresden, Oct 2019​

A. Kumar, J. Bartelt, A.N. Barreto, G.P. Fettweis, 2D Active Antenna Array Design for mMIMO to Improve Spectral and Energy Efficiency, IEEE 5G World Forum, Dresden, Oct 2019​

A. Traßl,  L. Scheuvens, Tom Hößler, N. Franchi, Gerhard P. Fettweis, On Dependability Metrics for Wireless Industrial Communications – Applied to IEEE 802.11ax,  IEEE 5G World Forum, Dresden, Oct 2019​

A. Amaanat, U. Karabulut, A. Awada, I. Viering, O. Tirkkonen, A.N. Barreto, G. P. Fettweis, System Model for Average Downlink SINR in 5G Multi-Beam Networks, International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Istanbul, Turkey, Sep. 2019​

J.K. Chaudhary, J. Francis, A.N. Barreto, G.P. Fettweis, Packet Loss in Latency-constrained Ethernet-based Packetized C-RAN Fronthaul, International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) , Istanbul, Turkey, Sep. 2019​

S. Dwivedi, A. N. Barreto, P. Sen, G. Fettweis, Target Detection in Joint Frequency Modulated Continuous Wave (FMCW) Radar-Communication System, International Symposium on Wireless Communication Systems (ISWCS), Oulu, Finland, Aug. 2019​

T. Hößler, M. Simsek, and G. P. Fettweis, Matching-Based Resource Allocation for Multi-User URLLC in Unlicensed Frequency Bands, International Symposium on Wireless Communication Systems (ISWCS), Oulu, Finland, Aug. 2019​

P. Schulz, L. Ong, P. Littlewood, B. Abdullah, M. Simsek, and G. Fettweis. End-to-End Latency Analysis in Wireless Networkswith Queuing Models for General Prioritized Traffic, IEEE International Conference on Communications Workshops (ICCCW). Shanghai, May 2019​

B. Khodapanah, A. Awada, I. Viering, A.N. Barreto, M. Simsek, G. Fettweis, Slice Management in Radio Access Network via Iterative Adaptation, IEEE International Conference on Communications (ICC), Shanghai, China, May 2019​

J. K. Chaudhary, J. Francis, A. N. Barreto, G. Fettweis, Latency in the Uplink of massive MIMO CRAN with Packetized Fronthaul: Modeling and Analysis, IEEE Wireless Communications and Networking Conference (WCNC) , Marrakech, Morocco, Apr. 2019​

C. Queiroz , R. Vieira, A. Barreto, A. Zarrebini, E. Souza, A. Linhares, New Spectrum Bands for HAPS: Sharing with Fixed-Satellite Systems, IEEE Vehicular Technology conference (VTC-Spring), Kuala Lumpur, Malaysia, Apr. 2019​