Research Fields and Projects of the Department of Mobile Radio Systems
ongoing 5G Netmobil
The main objective of the CellCar project is to bring the best from combining IEEE 802.11p and LTE (Long Term Evolution) standards for the wireless vehicular environment. The fact that 802.11p is infrastructure-less and LTE is infrastructure-based is very exciting both in terms of opportunities and challenges. [More]
finished COST IC 1004
IC1004 is a COST Action on Cooperative Radio Communications for Green Smart Environments and belongs to the ICT Domain. This Action addresses research issues in the field of cooperative radio communications to make our society cleaner, safer, and more energy efficient. [More]
finished Description and correction of multipath propagation in GNSS Signals by Ray Tracing and Software Radio Receivers
The BERTA project will take place during three years, and will be realized by IfN in cooperation with the Institut für Erdmessung (IfE) and the Geodätischen Institut (GI), Leibniz Universität Hannover. The project should firstly describe the multipath propagation and diffraction effects in GNSS reference stations, as well as investigate the GNSS signal propagation near the receiver´s antenna. [More]
finished GreenNets - Power consumption and CO2 footprint reduction in mobile networks by advanced automated network management approaches
The objective of the GreenNets project is to tackle the energy consumption challenge for cellular radio networks and enable the introduction on the market of advanced tools and software platforms to assist operators in enhancing energy efficiency of their current and future network deployments.
ongoing Humboldt Foundation -- Characterization and Modeling for the Millimeter and Sub-Millimeter Wave MIMO Mobile Ultra-Broadband Channel enabling Smart Rail Mobility
As a widely acknowledged efficient and green transport model, rail traffic is highly expected to evolve into a new era of “smart rail mobility” where infrastructure, trains, and travelers will be interconnected to achieve optimized mobility, higher safety, and lower costs. Therefore, a seamless high-data rate wireless connectivity and up to dozens of GHz bandwidth are required. Such a huge bandwidth requirement motivates the exploration of the underutilized millimeter (mm) and sub-mm wave bands. [More]
ongoing iBROW - Innovative ultra-BROadband ubiquitous Wireless communications through terahertz transceivers
iBROW is a Horizon 2020 project to develop a novel, energy-efficient and compact ultra-broadband short-range wireless communication transceiver technology, seamlessly interfaced with optical fibre networks and capable of addressing envisaged future network needs. Predictions indicate that short-range wireless data-rates of tens of Gbps will be required by 2020, and currently available wireless technology cannot support these demands despite significant progress in spectrally efficient techniques. The frequency spectrum currently in use is not expected to be suitable to accommodate these future data-rate requirements, and therefore there is a need to embrace higher frequency bands, namely in the mm-wave and THz bands, above 60 GHz and up to 1 THz.
We are actively working on the development of the new IEEE 802.11ad WLAN standard. This standard will use the worldwide available 60 GHz frequency band und will enable wireless communications with data rates of more than 1 Gbps. In the framework of standardization we develop radio channel models for the performance evaluation of future WLAN systems. Here the main focus is on dynamic models describing the influence of human movement on the radio channel. In addition Prof. Kürner is the chair of the IEEE 802.15 THz interest group, which focusses on accessing the widely unused THz frequency band for WLAN/WPAN systems. [More]
This projects investigates simulation capabilities of cellular LTE data traffic for vehicular subscribers. [More]
The SEMAFOUR project will design and develop a unified self-management system, which enables the network operators to holistically manage and operate their complex heterogeneous mobile networks. The ultimate goal is to create a management system that enables an enhanced quality of user experience, improved network performance, improved manageability, and reduced operational costs.
The saturation of wireless spectrum access is leading to innovations in areas such as spectrum resource usage. It is widely thought however that the low hanging fruits of innovation for wireless communication are all but exploited with only marginal gains possible. For a real step change towards the coveted 1 Tbps wireless transmission, new areas of the spectrum must be utilized. Recent breakthroughs in terahertz systems are overturning the “Terahertz gap” stigma associated with the previously difficult to access spectrum. With the emergence of viable THz communications systems on the horizon, it is crucial to develop a technology roadmap for THz communication for beyond the 5G timeframe. [More]
The goal of the TERAPAN project, which is funded by the German Federal Ministry of Education and Research, is the demonstration of an adaptive wireless point-to-point terahertz communication system and the validation of its performance for distances of up to 100 GHz at distances of up to 10 m. www.terapan.de [More]
ongoing TETRA Frequency Planning
This projects makes proposals for frequency planning of TETRA networks. [More]
finished V2X Channel Models
Channel models are an important key element to model a realistic transmission and reception of messages between vehicles. Together with the C2C Communication Consortium, recent V2X channel models are investigated and compared to introduce the possible integration into a simulation environment. [More]
Nanotechnology enables the creation of nanoscale components, which are able to perform simple specific tasks like computing, data storing, sensing and actuation. Based on these components very small devices – so-called nano-devices – can be constructed and used to build small nano sensor networks with applications in bio-medicine and eHealth. Communication among the devices will be wireless. Due to the small size of these devices the carrier frequency has to be at several THz. [More]