Dependable Wireless Connectivity for the Society in Motion
Tomorrow’s society will see hosts of people that are constantly on the move, commuting to work, visiting family and friends, going shopping and so on. During such time spent in public or private transportation, these people will use their mobile devices, e.g., smart-phones and tablet-computers, to connect to the Internet, utilizing commuting time for work-related tasks, entertainment and/or socialising in online communities. Such users, however, currently often suffer from poor service quality, as current fourth generation cellular networks are not designed to efficiently serve large number of high-mobility users. In addition, machine-type communication will aggravate this problem, as vehicles and trains are expected to employ future 5G networks to provide broadband services and even to exchange safety-relevant information.
The Christian Doppler Laboratory for Dependable Wireless Connectivity for the Society in Motion aims at enhancing candidate fifth generation (and beyond) link and system level technologies to enable efficient and dependable wireless connectivity at high-mobility for large masses of (human and machine-type) mobile users. Dependability of the transmission link, that is, guaranteeing reliability, low latency and timeliness of data transmission, is central to extend the scope of mobile communications beyond best-effort services, enabling even safety-critical wireless data exchange over mobile networks to support, e.g., road-safety applications. The overarching goal of this project thus is to significantly improve the quality of service of a large number of high-mobility users in a cellular network crowded with quasi-static (nomadic) users, while supporting a mixture of traffic demands to cope with delay-critical and best-effort services as well as dependable data transmissions. To pursue this goal, we tightly couple research on physical layer transceiver and signal processing design with algorithmic development for user scheduling and network coordination on system level. We apply a cross-layer optimization approach ranging from the physical layer of the communication system to the network layer and partition our research work into the following research modules:
- PHY enhancements (massive MIMO and non-orthogonal multicarrier modulation)
- Innovative technologies (mmWave transmission and ad-hoc networks)
- Network architectures (heterogeneous networks and distributed antenna systems)
Together with a strong and competitive team of cooperating industrial partners, consisting of A1 Telekom Austria AG, Kathrein-Werke KG and Nokia Solutions and Networks, we will exploit obtained results and insights to realize our vision of a wirelessly connected Society in Motion. Our research work is publicly funded by the Austrian Federal Ministry of Science, Research and Economy.